JP2020042455A - Calculator, electronic device, setting method, and program - Google Patents

Abstract

To provide a calculator that makes a user to easily recognize whether a setting value set by the user before its initialization is held also after the initialization when initialization processing of a device is performed, and that can reduce setting work of an initial value for the setting value, which setting work is performed before delivery of the device.SOLUTION: In a calculator that comprises a control section which can perform first calculation according to an input of an execution instruction, the control section is configured to: store first information indicating that certain processing has been performed, in a storage section of the calculator after performing the certain processing; and perform processing to set a numerical value used in the first calculation to a predetermined first numerical value and store second information indicating that the certain processing has not been performed, in the storage section in a case where the first information is stored in the storage section at an activation time when initialization processing of the calculator is involved.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a calculator for calculating tax, a setting method, and a program.

  In recent years, some tax calculators (calculators) have a function of calculating a tax using a preset tax rate. For example, the tax calculator described in Patent Document 1 is provided with a plurality of tax calculation keys (calculation key including tax, calculation key without tax) respectively corresponding to a plurality of tax rates. The tax calculator calculates the tax-inclusive amount at the tax rate corresponding to each tax calculation key based on the numerical value calculated normally by any four arithmetic calculations or the numerical value entered individually according to the operation on each tax calculation key. Calculate and display.

  An arbitrary tax rate can be set by operating a predetermined key on the tax calculation key provided for the tax calculation. For example, when the tax rate is changed due to a revision of the law, the user sets the changed tax rate, or according to the preference of the operability, the tax calculation key at a position where the tax rate frequently used for tax calculation is easy to use. Can be set.

JP 2017-174225 A

  Before the tax calculator is shipped from the factory, a tax rate is set as an initial value for a tax calculation key. The tax rate set for the tax calculation key is maintained while power is supplied from the battery, but is lost when the battery is replaced.

  When the tax rate is set to the initial value preset by the program automatically for the tax calculation key after the battery replacement, the user does not have to perform the tax rate setting operation again by operating the tax calculation key. Tax calculation becomes feasible. On the other hand, if the specification of the tax calculator allows the user to set and use an arbitrary tax rate different from the preset initial value for the tax calculation key, the arbitrary tax rate set by the user before battery replacement is used. There is a possibility that it is difficult for the user to recognize whether or not is retained even after the battery is replaced.

  On the other hand, after replacing the battery, a value that can recognize that the tax rate different from that before the battery replacement is set for the tax calculation key, and a value that is not the preset initial value described above must be set. In this case, the user can easily recognize that the tax rate reset by the user before battery replacement is not maintained. However, in such a case, when the battery is replaced before shipment from the factory, it is necessary to set a tax rate that is a correct initial value for the tax calculation key, and the burden before shipment from the factory may increase.

  According to the present invention, when the initialization processing of the device is performed, the user can easily recognize whether or not the setting value set by the user before the initialization is retained after the initialization, and A computer, a setting method, and a program that can reduce the work of setting an initial value to the above-mentioned setting value performed before shipment of the program.

  In order to solve the above problem, a computer according to the present invention is a computer having a control unit capable of executing a first calculation in response to an input of an execution instruction, wherein the control unit performs, after performing a certain process, When first information indicating that a certain process has been executed is stored in the storage unit of the computer, and when the computer is started with an initialization process, the first information is stored in the storage unit. A process for setting a numerical value used for the first calculation to a predetermined first numerical value is executed, and second information indicating that the certain process has not been executed is stored in the storage unit.

The front view showing the appearance composition of the tax calculator in this embodiment. FIG. 2 is a block diagram showing a configuration of an electronic circuit of the calculator according to the embodiment. 9 is a flowchart for explaining the operation of a tax rate setting process for a tax calculation key of the calculator according to the embodiment. 5 is a flowchart for explaining the operation of the calculator in the present embodiment. The figure which shows an example of the tax rate set to the tax calculation key in this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view showing an external configuration of the tax calculator according to the present embodiment. In the present embodiment, the tax calculator is realized as a calculator 10 dedicated to calculation.

  In addition, the tax calculator is configured as the calculator 10, and has a calculation function (a calculation processing program is mounted), such as a personal computer, a tablet computer, a smartphone, a mobile phone, a touch panel PDA (personal digital assistants), an electronic book, It can be configured as a portable game machine or the like. It should be noted that a tax calculator with no physical keys (buttons) such as the calculator 10 displays a software keyboard similar to the keys of the calculator 10 and executes calculation processing in accordance with key operations on the software keyboard. .

  The calculator 10 according to the present embodiment is provided with a tax calculation function for calculating a tax at a plurality of tax rates, for example, at five different tax rates. For example, in India, five kinds of tax rates (0%, 5%, 12%, 18%, and 28%) are used as consumption tax. Therefore, the calculator 10 according to the present embodiment is suitable for tax calculation for calculating the total amount of a product in which a plurality of types of consumption tax of five or less are mixed in India and the like.

  A key input unit 11 including a plurality of keys, a display unit 12, and a solar panel 13 are provided on the front of the housing of the calculator 10. The key input unit 11 is provided with numerical keys, calculation keys, tax calculation function keys, function keys, and check function keys. The numerical keys include, for example, a plurality of keys corresponding to [00] [0] to [9]. The operation keys include, for example, a [+] (addition) key 11h1, a [-] (subtraction) key 11h2, a [x] (multiplication) key 11h3, and a [算] (division) key 11h4, which are used for normal calculations by four arithmetic operations. , [=] (Calculation execution) key 11h0.

  The tax calculation function keys include a tax calculation key ([GST + n (TAX-n)]) 11b, a tax calculation total key ([GST GT (GT)]) 11c, and a tax calculation mode switching key ([GST + / TAX-]). 11d is provided. Here, GST is an abbreviation for “Goods and Service Tax” which means Indian consumption tax. The character string in [] (however, the character string in () is excluded) indicates the character string printed on the key top of each tax calculation key 11 b, and further in () in []. Is a character string printed on the front of the housing of the calculator 10 for the sake of convenience. In this specification, not only the tax calculation key 11b but also the same notation is used.

  The tax calculation key ([GST + n (TAX-n)]) 11b includes a tax 0 calculation key ([GST + 0 (TAX-0)]) 11b0, a tax 1 calculation key ([GST + 1 (TAX-1)]) 11b1, and a tax 2 calculation keys ([GST + 2 (TAX-2)]) 11b2, tax 3 calculation keys ([GST + 3 (TAX-3)]) 11b3, and tax 4 calculation keys ([GST + 4 (TAX-4)]) 11b4. The tax 0 calculation key ([GST + 0 (TAX-0)]) 11b0 is operated to input a tax calculation execution instruction using the tax rate 0. Similarly, a tax 1 calculation key ([GST + 1 (TAX-1)]) 11b1, a tax 2 calculation key ([GST + 2 (TAX-2)]) 11b2, and a tax 3 calculation key ([GST + 3 (TAX-3)]) 11b3 and a tax 4 calculation key ([GST + 4 (TAX-4)]) 11b4 are operated to input a tax calculation execution instruction using the tax rate 1, the tax rate 2, the tax rate 3, and the tax rate 4, respectively. In this specification, as described above, when the tax calculation key ([GST + n (TAX-n)]) 11b is used, “n” is used instead of each numerical value from 0 to 4. In the present specification, not only the tax calculation key 11b but also a specific numerical value when there is no particular limitation on which numerical value (an integer from 0 to 4) can be taken by “n”. This will be described for convenience using “n” instead of “n”.

  One tax calculation key 11b (tax n calculation keys 11b0 to 11b4) also serves as a tax-inclusive calculation key [GST + n] and a tax-exempt calculation key [TAX-n]. The tax calculation key 11b (tax n calculation key 11b0 to 11b4) is a tax-inclusive calculation key [GST + n] or a tax-inclusive calculation key [GST + n] according to the tax calculation mode switched in response to the operation of the tax calculation mode switching key ([GST + / TAX-]) 11d. Used as a tax-excluding calculation key [TAX-n]. By sharing one tax calculation key 11b as a tax-inclusive calculation key [GST + n] and a tax-exclusive calculation key [TAX-n], a limited area of the front surface of the housing is effectively used, and a plurality of (five types) are used. A key is provided that can execute a tax-inclusive calculation process and a tax-excluding calculation process corresponding to each tax rate.

  The tax rates (tax rates 0 to 4) assigned to the tax calculation keys 11b (tax n calculation keys 11b0 to 11b4) are preset when the calculator 10 is shipped from the factory. For example, five tax rates (0%, 5%, 12%, 18%, and 28%) are set in the tax n calculation keys 11b0 to 11b4, respectively, in accordance with use in India. The tax rates (tax rates 0 to 4) assigned to the tax n calculation keys 11b0 to 11b4 can be arbitrarily set by a user operation.

  If the battery is replaced before shipment from the factory, the calculator 10 according to the present embodiment applies a tax rate preset to a plurality of tax calculation keys 11b (tax n calculation keys 11b0 to 11b4) by an automatic tax rate setting program. Execute the tax rate automatic setting process to set. Thus, the tax rate setting work for the tax calculation key 11b before the factory shipment is made more efficient. On the other hand, when the battery is replaced when the user uses it after shipping from the factory, the calculator 10 sets a tax rate that makes it easy to see that the tax rate set in the tax calculation key 11b is different from that before the battery replacement. In the present embodiment, at the time of battery replacement when the user is in use, the tax rate set on the tax calculation key 11b is set to, for example, “0%” (tax rate setting clear). Thus, even if the tax calculation is performed by operating the tax calculation key 11b, the input numerical value and the numerical value after the tax calculation become the same, and it is easily recognized that the correct tax rate is not set for the tax calculation key 11b. can do.

  The tax calculation total key ([GST GT (GT)]) 11c includes a grand total key ([GT] key) for displaying a grand total for normal calculations (basic calculations) such as four arithmetic calculations and constant calculations, and a tax calculation key. Also serves as a GST grand total key ([GST GT] key) for displaying the total sum for the calculation result of. When the tax calculation total key 11c functions as a GST grand total key, the tax calculation is performed and the processing mode of the calculator 10 transits to the tax total recall mode (GST GT recall mode). On the other hand, when the tax calculation total key 11c functions as a grand total key, the processing mode of the calculator 10 does not particularly change, and the numerical value stored in the total memory area 22h is simply called and displayed on the display unit 12. Is done.

  The tax calculation total key 11c functions as either a grand total key ([GT] key) or a GST grand total key ([GST GT] key) depending on the operation state immediately before the tax calculation total key 11c is operated. I do. That is, for example, when the tax calculation total key 11c is pressed immediately after the tax calculation is performed by operating the tax calculation key 11b, the tax calculation key 11b is used to display the total amount of the tax calculation result on the GST. Functions as a grand total key ([GST GT] key). Further, for example, when the tax calculation total key 11c is pressed immediately after the normal calculation is performed by operating the calculation execution key ([=] key) 11h0, that is, the tax calculation is performed by operating the tax calculation key 11b. If it is not immediately after, the tax calculation key 11b functions as a grand total key ([GT] key) for displaying a grand total for a normal calculation (basic calculation). Here, the pressing time of the tax calculation total key 11c is shorter than an arbitrary predetermined time, and is shorter than the "long press" described below. Also, pressing for a short time is referred to as “short pressing” or a normal pressing operation in this specification.

  Further, the tax calculation total key 11c functions as a key opposite to the above when an operation (for example, long press) different from a normal press operation is performed. That is, for example, when the tax calculation total key 11c is long-pressed immediately after the tax calculation is performed by operating the tax calculation key 11b, the tax calculation total key 11c is used as a grand total key ([GT] key). Function. Further, for example, when the tax calculation total key 11c is long-pressed immediately after the normal calculation is performed by operating the calculation execution key ([=] key) 11h0, that is, the tax calculation is performed by operating the tax calculation key 11b. If not, the tax calculation total key 11c functions as a GST grand total key ([GST GT] key). The operation different from the normal operation for the tax calculation total key 11c may be another operation other than the above-mentioned long-pressing operation (the operation of keeping the pressed state for a predetermined time or more). It is.

  The function keys include, for example, an all clear key ([AC] key 11a), a clear key ([C] key), a plurality of memory keys ([MRC] [M-] [M +]), and a root key ([√] key). ), [%] Key 11g and the like. The [%] key 11g is used not only for calculating the percentage, but also for setting a tax rate corresponding to each of the tax calculation keys 11b (tax n calculation keys 11b0 to 11b4) to a value input by key operation. Used to initiate the configuration process.

  The check function key is a key used in the check function for confirming / correcting the contents of the calculation executed earlier. The verification function keys include a confirmation key ([CHECK BACK] key 11e, [CHECK FWARD] key 11f) and a correction key ([CORRECT] key) 11k. [CHECK BACK] key 11e and [CHECK FWARD] key 11f are keys for switching and displaying the contents (calculation data) of the previously executed calculation in units of steps. When the [CHECK BACK] key 11e is operated, the display is switched to the calculation data of the step in the direction in which the number of steps is small, and when the [CHECK FWARD] key 11f is operated, the calculation data in the direction in which the number of steps is large is displayed. Switch the display. In addition, one step is a unit of “numeric value + function” input for calculation. In the “function”, a code of a key operated for four arithmetic calculations, tax-inclusive calculations, tax-excluding calculations, and the like is stored. The correction key 11k is a key for instructing the correction of the content of the calculation (“the number input + function”) displayed by operating the [CHECK BACK] key 11e or the [CHECK FWARD] key 11f. By inputting the content of the corrected calculation after operating the correction key 11k, the displayed previously input calculation data can be corrected.

The round selector 11y sets a calculation method of the fraction processing. For example, the “F” setting specifies the display of the maximum displayable digit including the decimal part on the display unit 12. The “CUT” setting specifies the truncation of the digit specified by the decimal point selector 11z. The “UP” setting specifies rounding of the digit specified by the decimal point selector 11z. The “5/4” setting specifies the rounding of the digit specified by the decimal point selector 11z. The decimal point selector 11z sets how many digits after the decimal point are displayed on the display unit 12. The “ADD ₂ ” setting specifies the decimal point setting to a predetermined number of digits for the input numerical value.

  The display unit 12 includes a dot matrix type liquid crystal display unit. The display unit 12 displays numerical values input by operating the keys of the key input unit 11. The display unit 12 displays numerical values for a limited number of lines (for example, one line). Characters and symbols (symbols) indicating the calculation mode being set and various setting states are displayed in a state display area provided along the side of the display unit 12. For example, in the status display area, the number of steps 12a, the tax calculation mode symbol 12b, the tax calculation key symbol 12c, the tax total recall mode symbol 12d, the total display symbol 12e, the memory symbol 12f, the setting symbol 12g, and the [%] symbol 12h Is displayed. In FIG. 1, all displayable symbols are shown on the same screen for the sake of convenience in describing the status display area. However, in an arbitrary state that the calculator 10 can take, such a large number of symbols are the same. They are not always displayed on the screen at the same time.

  The step number 12a indicates the position of the current step to be displayed, with “numerical value + function” input by operating the key of the key input unit 11 as one step. The tax calculation mode symbol 12b indicates the current tax calculation mode. For example, [GST +] is displayed in the tax-inclusive calculation mode for executing the tax-inclusive calculation, and is displayed in the tax-exclusive calculation mode for executing the tax-independent calculation. Displays [TAX-], for example.

  The tax calculation key symbol 12c is a symbol indicating the tax rate used for the tax calculation and either the tax-inclusive calculation or the tax-excluding calculation when the tax calculation is performed by operating the tax calculation key 11b. When the tax calculation key 11b is used as the tax included calculation key [GST + n], any one of [GST + 0], [GST + 1], [GST + 2], [GST + 3], and [GST + 4] corresponding to each of the tax rates 0 to 4 is displayed. Is done. When the tax calculation key 11b is used as the tax-excluded calculation key [TAX-n], [TAX-0], [TAX-1], [TAX-2], [TAX-2] corresponding to the tax rates 0 to 4, respectively. TAX-3] or [TAX-4] is displayed.

  The tax total recall mode symbol 12d is a symbol indicating that a transition has been made to the tax total recall mode (GST GT recall mode) by operation of the tax calculation total key ([GST GT (GT)]) 11c, for example, "RCL" is displayed. Is displayed. In the tax total recall mode, a total sum of tax calculations calculated at each tax rate (tax rates 0 to 4) is calculated in accordance with a key operation on the tax calculation total key 11c. The amount can be switched and displayed. In the tax total recall mode, a tax rate to be displayed (tax rates 0 to 4) is specified by a key operation on the tax calculation key 11b. The amount and the total tax amount can be switched and displayed.

  The total display symbol 12e is a symbol indicating that the calculation result of the normal calculation performed in response to the operation of the calculation execution key [=] 11h0 is stored in the total memory area 22h. For example, "GT" is displayed. You. The memory symbol 12f is a symbol indicating that a numerical value is stored by a memory function in response to an operation of a memory key ([M-] [M +]).

  The setting symbol 12g is a symbol indicating a mode for executing a tax rate setting process for setting a tax rate for the tax calculation key 11b, and for example, [SET] is displayed.

  The [%] symbol 12h is a symbol that is displayed when the [%] key 11g is operated for calculating the percentage and when the [%] key 11g is operated in the tax rate setting process, for example, [%] Is displayed.

  The solar panel 13 generates electric power when the illuminance of ambient light when the calculator 10 is used is bright to some extent. The solar panel 13 functions as a power supply unit 26 (shown in FIG. 2) of the calculator 10 during power generation, and supplies power to each unit of the calculator 10. When the solar panel 13 is not generating power, power is supplied to each unit of the calculator 10 from a primary battery as a power supply unit 26 separately provided in the calculator 10.

  FIG. 2 is a block diagram illustrating a configuration of an electronic circuit of the calculator 10 according to the present embodiment. The electronic circuit of the calculator 10 includes a plurality of units constituting a computer including a CPU 21.

  The CPU 21 functions as a control unit that controls the operation of each unit of the circuit by executing programs such as the factory inspection program 22a and the calculation processing program 22b stored in the memory 22. When an input operation is performed on the key input unit 11, the CPU 21 detects a key on which an input operation has been performed based on a key input signal from the key input unit 11, and executes various calculation processes according to the detected keys. I do. The operation of the calculator 10 will be described in the following description of operations when the CPU 21 controls the operation of each part of the circuit in accordance with the instructions described in the factory inspection program 22a or the calculation processing program 22b, and the software and hardware operate in cooperation. Startup processing, processing by calculation function, etc. are realized.

  The factory inspection program 22a and the calculation processing program 22b may be stored in the memory 22 in advance, may be read from an external recording medium 23 such as a memory card via a recording medium reading unit 24, or may be a communication unit. 25 may be downloaded from the server 30 on the communication network N (including the Internet or the like).

  The memory 22 stores a factory inspection program 22a and a calculation processing program 22b, and a post-factory inspection flag (completion data) indicating whether or not the factory inspection processing by the factory inspection program 22a has been executed (processing completed). ) Is stored in the post-factory inspection flag area 22c. The post-factory inspection flag area 22c is a non-volatile storage area that can hold the status of the post-factory inspection flag even when the power supply from the power supply unit 26 (solar panel 13) is stopped at the time of battery replacement or the like. .

In the memory 22, an area (tax memory) for storing the calculation result of the tax calculation, a tax rate storage area 22e, a tax total memory area by tax rate 22g, a total memory area 22h, a tax total recall mode area 22k, a tax calculation mode area An area for storing each data is provided, such as 22m, a buffer memory area 22n, and a display memory area 22p. The tax memory (first memory) includes a tax rate-based total memory area 22d and a tax rate-based tax total memory area. The total memory area 22d for each tax rate has a total memory area corresponding to each of the tax rates 0 to 4 (tax rate 0 total memory area, tax rate 1 total memory area, tax rate 2 total memory area, tax rate 3 total memory area, tax rate 3 total memory area). Area) is provided. Total tax memory area 22d by tax rate
The tax rate 0 total memory area of the tax rate-based total memory area 22d is an area for storing data calculated by tax calculation based on the tax rate 0. The tax rate 0 total memory area stores a numerical value based on the result of the tax-inclusive calculation of the tax rate 0. More specifically, the tax amount (the 0th tax amount), the tax amount (the 0th tax amount), and the tax amount as a result of the tax-inclusive calculation of the tax rate 0 performed at least once after the input operation of the [AC] key 11a, The total amount of the tax-excluded amount (the 0th tax-excluded amount) is stored as the 0th tax-included total amount, the 0th tax-excluded total amount, and the 0th tax total amount.

  The tax rate 1 total memory area, the tax rate 2 total memory area, the tax rate 3 total memory area, and the tax rate 4 total memory area are calculated by the tax calculation based on the respective tax rates 1 to 4 in the same manner as the tax rate 0 total memory area described above. This is an area for storing data to be processed. Detailed description is omitted.

  The tax rate storage area 22e stores numerical values indicating the tax rates 0 to 4 set for the respective tax calculation keys 11b (tax n calculation keys 11b0 to 11b4). For example, five tax rates (0%, 5%, 12%, 18%, and 28%) are set in the tax n calculation keys 11b0 to 11b4 at the time of shipment from the factory in accordance with use in India. In this case, the tax rate storage area 22e stores "0", "5", "12", "18", and "28" for each of the tax rates 0 to 4 corresponding to the tax n calculation keys 11b0 to 11b4. The numerical value is stored.

  The tax rate-specific tax total memory area 22g is an area for storing data indicating a total of numerical values calculated by tax calculations based on all tax rates 0 to 4. In the tax total memory area 22g according to the tax rate, the total tax-included total amount including the 0 to 4th tax-inclusive total amount and the total tax-excluded total amount corresponding to the tax-inclusive total total amount are stored in the tax total memory area 22g according to the input operation of the tax calculation total key 11c. , The total tax amount corresponding to the total tax amount is stored.

  The total memory area 22h is an area for storing data indicating a total of numerical values calculated by the normal calculation (second memory). In the total memory area 22h, the calculation result of the normal calculation is calculated according to the operation of the calculation execution key [=] 11h0, and the numerical value as the calculation result is added to the numerical value stored in the total memory area 22h. .

  In the total tax recall mode area 22k, a total tax recall mode flag indicating whether or not the user is in a recall mode in accordance with an input operation on the total tax calculation key 11c is set to an ON state or an OFF state. The tax total recall mode is turned on when the tax calculation total key 11c is pressed immediately after the tax calculation by operating the tax calculation key 11b, or when the tax calculation total key 11c is pressed and held immediately after the normal calculation. (Transition to tax total recall mode). The tax total recall mode is turned off when, for example, the [AC] key 11a is operated as a predetermined instruction for turning off the tax total recall mode. The switching of the tax total recall mode on / off is not limited to the operation of the tax calculation total key 11c and the [AC] key 11a. For example, on / off of the tax total recall mode may be switched according to another key operation or the processing result of the calculator 10.

  When the tax total recall mode is ON, every time the tax calculation total key 11c is operated (pressed), the total tax-included total amount, the total tax-excluded total amount, and the tax stored in the tax total memory area 22g by tax rate are operated. The total amount can be switched and displayed. Further, when the tax total recall mode is in the ON state, each time the tax calculation key 11b (the tax n calculation keys 11b0 to 11b4) is operated (pressed), the data is stored in the tax rate-specific tax rate-specific tax total memory area 22d. , The total amount including tax, the total amount without tax, and the total amount of tax can be switched and displayed.

  The ON state of the tax total recall mode is maintained even when the numerical keys and the calculation keys of the key input unit 11 are input. Therefore, the normal calculation using the numerical keys and the operation keys can be executed while displaying and confirming the result of the tax calculation by the input operation of the tax calculation total key 11c or the tax calculation key 11b (11b0 to 11b4). In the normal calculation in the ON state of the total tax recall mode, a numerical value as a result of the tax calculation is displayed on the display unit 12, and four arithmetic calculations can be executed on the number displayed on the display unit 12. .

  The tax calculation mode area 22m stores tax calculation mode data that is switched according to an input operation on the tax calculation mode switching key 11d and that indicates the state of the tax included calculation mode or the tax excluded calculation mode.

  The buffer memory area 22n stores the numbers entered so as to form a unit in combination with the last input function. The display memory area 22p stores the numerical value displayed on the display unit 12 at that time. For example, when the numerical value “100” is operated as a numerical value by operating a numerical key and the tax 1 calculation key ([GST + 1 (TAX-1)]) 11b1 is sequentially operated as a function, the numerical value is stored in the buffer memory area 22n as the numerical value. Is stored in the display memory area 22p, and the numerical value “105” also displayed on the display unit 12 as a result of the tax-inclusive calculation of the tax rate 1 is stored (however, the tax rate 1 is 5%). if you did this). As described above, the numerical values stored in the buffer memory area 22n and the display memory area 22p are sequentially overwritten and updated according to the latest input operation.

  Next, the operation of the calculator 10 in the present embodiment will be described. FIG. 3 is a flowchart showing a tax rate setting process when the calculator 10 is activated in the present embodiment, and FIG. 4 is a flowchart for explaining the operation of the calculation process of the calculator 10 in the present embodiment. FIG. 5 is a diagram showing an example of numerical values indicating the tax rates 0 to 4 stored in the tax rate storage area 22e.

  Before the calculator 10 is shipped from the factory, a state in which the factory inspection program 22a has not been executed (a post-factory inspection flag described later is off) is an initial state. After various operations are checked by the factory inspection process, the calculator 10 is shipped after the batteries in the power supply unit 26 are replaced with new ones.

  First, the description starts with the processing executed by the calculator 10 before shipment from the factory.

  The CPU 21 determines whether or not it has been started with the replacement of the battery (step S1). This determination may be made based on the result of detecting the voltage supplied from the power supply unit 26. Here, if it is not the activation due to the battery replacement (Step S1: No), the CPU 21 executes the processing of Step S6 described later. On the other hand, when it is started with the battery replacement (Step S1: Yes), the entire initialization process is executed (Step S2).

  In the entire initialization process, the CPU 21 clears all the contents of the memory 22 and the display contents of the display unit 12, including the tax rate storage area 22e. That is, the CPU 21 clears all the tax rate-specific tax memory areas 22d, the tax rate storage area 22e, the tax total memory area 22g, the total memory area 22h, the buffer memory area 22n, and the display memory area 22p of the memory 22 in the entire initialization process. I do. Further, the CPU 21 turns off the tax total recall mode flag stored in the tax total recall mode area 22k. When the battery is replaced from the state where the numerical value such as the tax calculation result is displayed, the CPU 21 clears the previously displayed numerical value and displays “0”. Further, when battery replacement is performed from a state where the previous symbol is displayed in the status display area of the display unit 12, the CPU 21 clears the previously displayed symbol and hides it.

  As described above, the tax rate storage area 22e is also cleared in the entire initialization process involving battery replacement, so that the tax rates 0 to 4 set for the plurality of tax calculation keys 11b are also cleared. Here, it is assumed that all the tax rates 0 to 4 become “0” by clearing the tax rate storage area 22e.

  Next, the CPU 21 refers to the post-factory inspection flag area 22c and determines whether the post-factory inspection flag indicates that the factory inspection process has been executed (the post-factory inspection flag is on) (step S3). Here, as described above, since the post-factory inspection flag is not on (step S3: No), the CPU 21 enters a standby state for an input operation.

  Here, when the execution of the factory inspection process is instructed by operating the key input unit 11 (step S6: Yes), the CPU 21 executes the factory inspection process (step S7). The execution of the factory inspection process is extremely unlikely to be performed when the user normally uses the calculator 10, for example, a combination of a plurality of keys (for example, three or more keys) or a long press. It is assumed that an instruction is given by operating in combination with a key operation (such as long press of the [AC] key 11a). That is, the factory inspection process is executed only in the factory before shipment.

  The CPU 21 causes each unit to execute an operation for confirming whether each unit configuring the calculator 10 is operating normally by the factory inspection process. For example, the CPU 21 performs an operation check by causing the liquid crystal display unit constituting the display unit 12 to execute lighting, blinking, turning off, and the like. Further, the CPU 21 switches the operation clock between high speed and low speed and checks the respective operation states. In addition, the CPU 21 performs an operation check of each unit.

  When the factory inspection process is completed, the CPU 21 turns on the post-factory inspection flag in the post-factory inspection flag area 22c to indicate that the factory inspection process has been executed (step S8).

  After the operation is checked by the factory inspection process, the battery of the calculator 10 is exchanged before being shipped. After the battery replacement, the above-described tax rate setting process is executed again. The process in that case will be described later.

  On the other hand, in step S6, when the execution of the factory inspection process is not instructed (step S6: No) and the [AC] key 11a is operated (step S9: Yes), the CPU 21 proceeds to the calculation process by the calculation process program 22b. The process proceeds to execute a process corresponding to the operation of the [AC] key 11a (described later).

  In this state, since a correct tax rate is not set for the tax calculation key 11b, a correct tax calculation cannot be performed by operating the tax calculation key 11b. FIG. 5 shows values 40 of the tax rates 0 to 4 stored in the tax rate storage area 22e after the factory inspection. As shown in FIG. 5, when the tax rate storage area 22e is cleared and all of the tax rates 0 to 4 are in the state of “0”, the input numerical value is changed according to the operation of the tax calculation key 11b. Even if the calculation is executed, the numerical value displayed as a result of the tax calculation is the same as the input numerical value. Also, no matter which one of the plurality of tax calculation keys 11b is operated to instruct the execution of the tax calculation, the numerical value displayed as the result of the tax calculation is the same as the input numerical value.

  Next, a process executed by the calculator 10 when the battery of the calculator 10 is replaced after the operation is checked by the factory inspection process before shipment from the factory will be described.

  Next, the CPU 21 refers to the post-factory inspection flag area 22c and determines whether the post-factory inspection flag indicates that the factory inspection process has been executed (the post-factory inspection flag is on) (step S3). As described above, since the post-factory inspection flag is turned on in step S8 (step S3: Yes), the CPU 21 enters a standby state for an input operation.

  When the CPU 21 is started with the battery replacement (step S1: Yes), the CPU 21 executes the all initialization process again (step S2).

  Next, the CPU 21 refers to the post-factory inspection flag area 22c and determines again whether the post-factory inspection flag indicates that the factory inspection process has been executed (the post-factory inspection flag is on) (step S3). In this case, as described above, since steps S7 and S8 have been executed and the factory inspection process has been executed, the post-factory inspection flag is set to ON. Since the post-factory inspection flag is on (step S3: Yes), the CPU 21 executes an automatic tax rate setting process (step S4).

  In the automatic tax rate setting process, the CPU 21 sets a preset tax rate 0 to 4 for each of the tax calculation keys 11b (tax n calculation keys 11b0 to 11b4). In the present embodiment, the CPU 21 sets “0” for each of the tax rates 0 to 4 in accordance with the five types of tax rates (0%, 5%, 12%, 18%, and 28%) used in India. The numerical values of “5”, “12”, “18”, and “28” are stored in the tax rate 3 total memory area 22e. FIG. 5 shows values 41 of the tax rates 0 to 4 when the battery is replaced after the factory inspection. Numerical values indicating the tax rates 0 to 4 for which the tax rate storage area 22e is set in the automatic tax rate setting process are set in advance in the calculation processing program 22a, for example, and are automatically set by the processing by the calculation processing program 22a.

  Therefore, when the factory inspection process is performed before the calculator 10 is shipped from the factory, the operator operates the calculator 10 by performing key operations or the like to obtain a plurality of tax calculation keys 11b (tax n calculation keys 11b0 to 11b0). 11b4), there is no need to set a tax rate that is a correct initial value.

  After completing the tax rate automatic setting process, the CPU 21 turns off the post-factory inspection flag in the tax rate 1 total memory area 22c (step S5). That is, by turning off the post-factory inspection flag, the automatic tax rate setting process is prevented from being executed even if the process is started in connection with battery replacement in the future. The process of turning on the post-factory inspection flag is executed only after the factory inspection process, and the factory inspection process is not executed when the user uses it. Therefore, after the calculator 10 is shipped, the post-factory inspection flag is not turned on when the user uses the calculator.

  Thereafter, the CPU 21 enters a standby state for an input operation. Subsequent processes are the same as those described above, and a description thereof will be omitted.

  In this state, since a correct tax rate is set for the tax calculation key 11b, a correct tax calculation can be performed by operating the tax calculation key 11b. That is, the calculator 10 is set in a state where correct tax rates 0 to 4 are set for the plurality of tax calculation keys 11b and can be shipped. The calculator 10 is shipped with the post-factory inspection flag in the post-factory inspection flag area 22c turned off.

  Next, a case where the calculator 10 is used by a user after being shipped will be described.

  First, before starting the calculation, the user operates (presses) the [AC] key 11a in order to clear the contents of the memory excluding the tax rate storage area 22e and the contents displayed on the display unit 12. When the [AC] key 11a is operated (Step A9: Yes), the CPU 21 calculates the tax total memory area 22d by tax rate, the tax total memory area 22g, the total memory area 22h, the buffer memory area 22n, and the display memory area in the memory 22. 22p are all cleared (step A12). Further, the CPU 21 turns off the tax total recall mode flag stored in the tax total recall mode area 22k (step A13). When the [AC] key 11a is operated in a state where the numerical value such as the tax calculation result is displayed, the CPU 21 clears the previously displayed numerical value and displays “0”. When the [AC] key 11a is operated in a state where the previous symbol is displayed in the status display area of the display unit 12, the CPU 21 clears the previously displayed symbol and hides it.

  As described above, since the tax rate storage area 22e is not cleared in the memory and display clearing process that does not involve battery replacement, the tax calculation key 11b (tax n calculation keys 11b0 to 11b4) is used in the tax rate automatic setting process (step S4). Each of the numerical values of the tax rates 0 to 4 set for each of them is not cleared and remains held.

  Here, if an input operation on the tax calculation key 11b (any of the tax n calculation keys 11b0 to 11b4) is detected immediately after the input operation of the [AC] key 11a (step A19: Yes), A117: Yes) The CPU 21 reads out the tax rate set for any of the tax n calculation keys 11b0 to 11b4 for which the input operation has been performed from the tax rate storage area 22e of the memory 22 and causes the display unit 12 to display the tax rate (step A118). For example, when the tax 1 calculation key 11b1 is operated immediately after the input operation of the [AC] key 11a, the CPU 21 stores the numerical value indicating the tax rate 1 (5%) set in the tax 1 calculation key 11b1 in the tax rate storage area. Read out from 22e and display “5” on the display unit 12.

  Immediately after the input operation of the [AC] key 11a, the input to the tax calculation key 11b (any one of the tax n calculation keys 11b0 to 11b4) is performed without operating any key other than the tax calculation key 11b. When an operation is detected (Step A19: Yes, A117: Yes), that is, as long as the key operation of the tax calculation key 11b is continued, the CPU 21 sets the tax rate 0 set for the tax calculation key 11b on which the input operation is performed. 4 is read from the memory 22 and displayed on the display unit 12 in the same manner as described above (step A118).

  That is, immediately after the input operation of the [AC] key 11a, one of the tax calculation keys 11b (the tax n calculation keys 11b0 to 11b4) is continuously operated, so that each of the tax calculation keys 11b is operated. The set tax rates 0 to 4 can be continuously switched and displayed. After the last input operation of the [AC] key 11a, if only the input operation of the tax calculation key 11b is performed twice or more consecutively, the input operation of the tax calculation key 11b after the second time is performed. Strictly speaking, it is not performed immediately after the input operation of the [AC] key 11a, but in the present specification, such an input operation is also performed immediately after the input operation of the [AC] key 11a. Consider Further, after the last input operation of the [AC] key 11a, if an input operation other than the tax calculation key 11b is performed even once, the input operation of the tax calculation key 11b performed thereafter will be the [AC] key. It is assumed that the operation is not performed immediately after the input operation of 11a.

  Next, when a numerical key is operated by the user to input a numerical value to be calculated (step A10: Yes), the CPU 21 inputs a numerical value (numerical code) corresponding to the input numerical key. The input numerical value is stored in the display memory area 22p and displayed on the display unit 12 (step A15).

  Subsequently, when the operation key is operated (Step A11: Yes), the CPU 21 inputs an operation (operation code) corresponding to the operated operation key, and changes the operation (symbol) symbol of the input operation. It is displayed in the status display area of the display unit 12 (step A16).

  Further, the CPU 21 performs an operation based on the input operation code and the input numerical code, stores the numerical value of the result of the operation in the display memory area 22p, and causes the display unit 12 to display the numerical value. Hereinafter, similarly, by repeatedly inputting the numerical code and the operation code, the CPU 21 sequentially stores the input numerical code and the operation code. Then, when the operation execution key “=” (equal) 11h0 is operated by a user operation (step A17: Yes), the CPU 21 calculates an operation code corresponding to the input operation execution key (“=” key) 11h0. The calculation is performed in accordance with the input numerical code and the operation code, and the numerical value of the calculation result is stored in the display memory area 22p and displayed on the display unit 12. Further, the CPU 21 stores a numerical value as a result of the normal calculation according to the numerical code and the operation code in the total memory area 22h (Step A18). When a numerical value has already been stored in the total memory area 22h, the CPU 21 adds a numerical value obtained as a result of the normal calculation to the previously stored numerical value and stores the result in the memory 22. When the calculation execution key “=” (equal) 11h0 is not operated by the user operation (step A17: No), the CPU 21 returns to the standby state of the input operation.

  If the input operation of the tax calculation key 11b is detected in a state where the numerical value is displayed on the display unit 12 other than immediately after the input operation of the [AC] key 11a (step A19: Yes → A117: No), the CPU 21 With respect to the numerical value (numeric value) displayed on the display unit 12, that is, the numerical value stored in the display memory area 22p, the tax rate set in any of the tax n calculation keys 11b0 to 11b4 for which the input operation has been performed. Perform tax calculation using. It should be noted that the numerical value to be calculated is not limited to the numerical value displayed by the normal calculation, but may be a numerical value input simply by inputting a numerical key.

  The tax calculation key 11b (each of the tax n calculation keys 11b0 to 11b4) serves both as a key for executing a tax-inclusive calculation and a key for executing a tax-excluded calculation. When the tax calculation key 11b is operated, the CPU 21 refers to the tax calculation mode area 22m to determine whether the current tax calculation mode is the tax-inclusive calculation mode or the tax-excluding calculation mode. Here, when the current tax calculation mode is the tax-inclusive calculation mode (step A110, including tax), the CPU 21 sets the numerical value displayed on the display unit 12 as the tax-excluded amount, and sets the numerical value and the tax rate corresponding to the tax calculation key 11b. And a tax-inclusive calculation process of displaying the result of the tax calculation in response to a key operation (step A111). When the current tax calculation mode is the tax-excluding calculation mode (step A110, excluding tax), the CPU 21 sets the numerical value displayed on the display unit 12 as the tax-inclusive amount, and sets the numerical value and the tax rate corresponding to the tax calculating key 11b. And a tax exclusion calculation process of displaying the result of the tax calculation in response to the key operation (step A112).

  The tax calculation mode is switched by operating the tax calculation mode switching key 11d. When detecting the operation of the tax calculation mode switching key 11d (step A14: Yes), the CPU 21 refers to the tax calculation mode area 22m to determine whether the current tax calculation mode is the tax-inclusive calculation mode or the tax-excluding calculation mode. Determine if there is.

  Here, when the current tax calculation mode is the tax-inclusive calculation mode (step A113, including tax), the CPU 21 stores the tax calculation mode data indicating the tax-excluding calculation mode in the tax calculation mode area 22m (step A114). Further, the CPU 21 displays the tax calculation mode symbol 12b ([TAX-]) indicating the tax-excluding calculation mode in the status display area of the display unit 12 (step A116).

  On the other hand, when the current tax calculation mode is the tax-excluding calculation mode (step A113, excluding tax), the CPU 21 stores the tax calculation mode data indicating the tax-inclusive calculation mode in the tax calculation mode area 22m (step A115). Further, the CPU 21 displays the tax calculation mode symbol 12b ([GST +]) indicating the tax-inclusive calculation mode in the status display area of the display unit 12 (step A116).

  When switching the tax calculation mode in accordance with the operation of the tax calculation mode switching key 11d, the CPU 21 stores the calculation results (total tax, total tax, and total tax) stored in the tax total memory area 22d by tax rate. Keep it as it is. Therefore, when the tax-inclusive calculation and the tax-exclusive calculation are performed in a mixed manner, the calculation result in the middle of the calculation is retained even if the tax calculation mode is switched.

  In the above description, an example is described in which the tax calculation (calculation including tax and calculation without tax) is performed using the tax rates 0 to 4 set at the time of shipment for the tax calculation key 11b. An arbitrary tax rate can be set by user operation for 11b (tax n calculation keys 11b0 to 11b4).

  When detecting a key operation indicating a tax rate setting instruction in a standby state of the input operation (step A119: Yes), the CPU 21 executes a tax rate setting process (step A120). The tax rate setting instruction is given, for example, by pressing and holding (for example, 2 seconds or more) the [%] key 11g immediately after the input operation of the [AC] key 11a. When the tax rate setting process is started, the CPU 21 displays the set symbol 12g [SET] and the [%] symbol 12h corresponding to the [%] key 11g in the status display area of the display unit 12.

  The CPU 21 sets the tax rates 0 to 4 corresponding to the tax calculation keys 11b (tax n calculation keys 11b0 to 11b4) according to the key operation by the user. As an operation method for setting the tax rate, for example, an input by operating a numerical value key indicating a tax rate and an instruction to complete the input of a numerical value by operating the [%] key 11g are issued by a plurality of tax n calculation keys 11b0 to 11b4. Can be executed by inputting in order. Further, by operating any one of the tax n calculation keys 11b0 to 11b4 to display a desired tax rate whose value is to be changed on the display unit 12, input a numerical value indicating the tax rate by operating the numeric key, Execution is also possible by giving an instruction to fix the numerical value input by operating the [%] key 11g. Further, as another operation method for setting the tax rate, the tax rate is set after the input of the numerical value indicating the tax rate by operating the numerical keys and the instruction of the completion of the input of the numerical value by operating the [%] key 11g are set. It can also be executed by operating any of the tax n calculation keys 11b0 to 11b4. FIG. 5 shows an example of the value 42 of the tax rates 0 to 4 set by the user. That is, the tax rates 0 to 4 have been changed to “28”, “18”, “12”, “8”, and “5”, respectively. As described above, the user sets the new tax rate for the desired tax n calculation keys 11b0 to 11b4, or replaces the set tax rates for the tax n calculation keys 11b0 to 11b4, thereby making it easy to customize. Then, the calculator 10 can be used.

  Next, a case where the user replaces the battery after the calculator 10 is shipped will be described. The CPU 21 determines whether or not it has been started with the replacement of the battery (step S1). Here, since the CPU 21 is started with the battery replacement (Step S1: Yes), the CPU 21 executes the memory and display clearing process without the battery replacement (Step S2) as described above. At this time, since the tax rate storage area 22e is also cleared, the tax rates 0 to 4 set by the user's input operation are also cleared. Here, when the tax rate storage area 22e is cleared, all of the tax rates 0 to 4 become “0”. FIG. 5 shows values 43 of tax rates 0 to 4 stored in the tax rate storage area 22e when the battery is replaced after shipping.

  Next, the CPU 21 determines whether or not the post-factory inspection flag indicates that the factory inspection process has been executed (the post-factory inspection flag is on) with reference to the post-factory inspection flag area 22c. Here, since the post-factory inspection flag is not on (step S3: No), the CPU 21 enters a standby state for an input operation. Here, as described above, it is extremely unlikely that an operation for instructing the execution of the factory inspection process is performed by the user, so that the execution of the factory inspection process is not instructed (step S6: No), and the [AC] key 11a is It is operated (Step S9: Yes). In response to the operation of the [AC] key 11a, the CPU 21 shifts to calculation processing by the calculation processing program 22b and executes processing corresponding to the operation of the [AC] key 11a. As described above, the calculator 10 is used by the user in a state where the tax rates 0 to 4 set in the tax rate storage area 22e are all “0”.

  When the tax rate storage area 22e is cleared by battery replacement and all of the tax rates 0 to 4 are in the state of "0", the user performs the tax calculation according to the operation of the tax calculation key 11b on the input numerical value. Even if executed, the numerical value displayed as a result of the tax calculation is the same as the input numerical value. Also, no matter which one of the plurality of tax calculation keys 11b is operated to instruct the execution of the tax calculation, the numerical value displayed as the result of the tax calculation is the same as the input numerical value. For this reason, the user can easily recognize that the tax calculation has not been correctly performed.

  In addition, since the user can recognize that the tax calculation result for the input numerical value is the same as the input numerical value and the tax rate is 0%, the user sets the tax rate set by the user again by the tax rate setting process described above. By doing so, the same tax calculation as before the battery replacement can be performed.

  The calculator 10 according to the present embodiment does not execute the automatic tax rate setting process executed in the factory when the user uses the calculator after shipping, at the time of startup due to battery replacement. If the tax rate is automatically set to the initial value by the tax rate automatic setting process after replacing the battery, if the tax calculation is performed on the numerical value entered by the user, the numerical value as the tax calculation result using the tax rate of the initial value Is displayed. In this case, the user can easily identify whether the result is the tax calculation based on the tax rate changed by the tax rate setting process or the result of the tax calculation based on the default tax rate. Can not.

  The calculator 10 according to the present embodiment has a different tax rate (all “0” here) from the tax rates 0 to 4 set by the automatic tax rate setting process at the time of battery replacement, so that the tax by operating the tax calculation key 11b. By performing the calculation, it can be easily grasped that the tax rate set in the tax calculation key 11b is not in a correct state.

  In the above description, all the tax rates 0 to 4 are set to “0” at the time of battery replacement after shipment. However, as a result of the tax calculation, the user can recognize that the result of the tax calculation is clearly incorrect. It is also possible to set a numerical value other than “0” as long as it is a reasonable numerical value. For example, it is also possible to use a large numerical value that is not used as a tax rate (for example, a numerical value of three digits or four or more digits).

  Further, at the time of battery replacement after shipment, if the user sets a numerical value that allows the user to recognize that the result of the calculation is clearly incorrect, the tax rates 0 to 4 may not be all the same.

  In this manner, the calculator 10 in the present embodiment executes the setting of the tax rate for the tax calculation key 11b by the automatic setting by the factory inspection program 22a before the factory shipment, so that the number of tax rates used for the tax calculation is increased. Even if the number of the tax calculation keys 11b is increased, the burden of the operation for setting the tax rate is not increased. Also, while the tax rate is automatically set at the factory, the tax rate is not automatically set at the time of battery replacement when the user uses the product after shipment, and the tax rate is changed for the tax calculation key 11b when executing the tax calculation. Can be easily recognized, so that incorrect tax calculation by the user can be prevented.

  The method described in the embodiment, that is, each method such as the processing shown in the flowcharts of FIGS. 3 and 4 is a program that can be executed by a computer, such as a memory card (ROM card, RAM card, etc.), a magnetic disk ( It can be stored and distributed on a recording medium such as a flexible disk, a hard disk, an optical disk (CD-ROM, DVD, etc.), and a semiconductor memory. Then, the computer reads the program recorded on the external recording medium, and the operation is controlled by the program, whereby the same processing as the function described in the embodiment can be realized.

  Also, program data for implementing each method can be transmitted over a network (Internet) in the form of a program code. Program data is transmitted from a computer (server device or the like) connected to the network (Internet). It is also possible to realize the same function as the above-described embodiment by taking in.

  The present invention is not limited to the embodiment, and can be variously modified in an implementation stage without departing from the scope of the invention. Further, the embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed components. For example, even if some components are deleted from all the components shown in the embodiments or some components are combined, the problem described in the section of the problem to be solved by the invention can be solved. In the case where the effect described in the section of the effect can be obtained, a configuration in which this component is deleted or combined can be extracted as an invention.

  Hereinafter, the invention described in the claims of the present application is additionally described.

[1] A computer having a control unit capable of executing a first calculation in response to input of an execution instruction,
The control unit includes:
After execution of a certain process, the first information indicating that the certain process has been executed is stored in a storage unit of the computer,
When the computer is started with an initialization process, if the first information is stored in the storage unit, a process of setting a numerical value used for the first calculation to a predetermined first numerical value is executed; And,
A computer that stores second information indicating that the certain process has not been executed in the storage unit.

[2] The control unit includes:
If the first information is not stored in the storage unit at the time of the start including the initialization process, a numerical value used for the first calculation is set to a second numerical value different from the first numerical value, [1] The calculator described.

  [3] The computer according to [1] or [2], wherein the control unit sets, as the initialization processing, a numerical value used for the first calculation to a second numerical value different from the first numerical value.

  [4] The computer according to any one of [1] to [3], wherein the control unit executes the initialization processing in accordance with battery replacement of the computer.

[5] The control unit can execute the second calculation in response to the input of the execution instruction,
When the first information is stored in the storage unit at the time of the start including the initialization process, a process of setting a numerical value used for the second calculation to a predetermined third numerical value is executed. ] The computer according to any one of [4] to [4].

[6] The control unit includes:
The computer according to [5], wherein at the time of the startup involving the initialization processing, if the first information is not stored in the storage unit, a numerical value used for the second calculation is set to the second numerical value.

[7] A setting method executed by a control unit of a computer having a control unit capable of executing the first calculation in response to input of an execution instruction,
After executing a certain process, the first information indicating that the certain process has been executed is stored in the storage unit of the computer,
When the computer is started with an initialization process, if the first information is stored in the storage unit, a process of setting a numerical value used for the first calculation to a predetermined first numerical value is executed; And,
A setting method, wherein second information indicating that the certain process has not been executed is stored in the storage unit.

[8] By a computer of a computer capable of executing the first calculation in response to the input of the execution instruction,
After execution of a certain process, the first information indicating that the certain process has been executed is stored in a storage unit of the computer,
When the computer is started with an initialization process, if the first information is stored in the storage unit, a process of setting a numerical value used for the first calculation to a predetermined first numerical value is executed; And,
A program for causing the storage unit to store second information indicating that the certain process has not been performed.

  10 Calculator, 11 Key input section, 11b0 Tax 0 calculation key, 11b1 Tax 1 calculation key, 11b2 Tax 2 calculation key, 11b3 Tax 3 calculation key, 11b4 Tax 4 calculation key, 11c Tax calculation total Key, 11d: Tax calculation mode switching key, 12: Display unit, 21: CPU, 22: Memory, 22a: Factory inspection program, 22b: Calculation processing program, 22c: Flag area after factory inspection, 22d: Tax total memory by tax rate Area, 22e: Tax rate storage area, 22g: Tax total memory area by tax rate, 22h: Total memory area, 22k: Tax total recall mode area, 22m: Tax calculation mode area, 22n: Buffer memory area, 22p: Display memory area.

The present invention relates to a calculator for calculating a tax, an electronic device, a setting method, and a program.

According to the present invention, when the initialization processing of the device is performed, the user can easily recognize whether or not the setting value set by the user before the initialization is retained after the initialization, and A computer, an electronic device, a setting method, and a program that can reduce the work of setting an initial value to the above set value performed before shipment of a computer.

Claims (8)

A computer having a control unit capable of executing a first calculation in response to an input of an execution instruction,
The control unit includes:
After execution of a certain process, the first information indicating that the certain process has been executed is stored in a storage unit of the computer,
When the computer is started with an initialization process, if the first information is stored in the storage unit, a process of setting a numerical value used for the first calculation to a predetermined first numerical value is executed; And,
Causing the storage unit to store second information indicating that the certain process has not been performed;
calculator. The control unit includes:
The numerical value used for the first calculation is set to a second numerical value different from the first numerical value when the first information is not stored in the storage unit at the time of the start including the initialization processing. The calculator described.   The computer according to claim 1, wherein the control unit sets a numerical value used for the first calculation to a second numerical value different from the first numerical value as the initialization processing.   The computer according to any one of claims 1 to 3, wherein the control unit executes the initialization process in accordance with battery replacement of the computer. The control unit can execute the second calculation in response to the input of the execution instruction,
At the time of startup accompanied by the initialization process, when the first information is stored in the storage unit, a process of setting a numerical value used for the second calculation to a predetermined third numerical value is executed. The computer according to any one of claims 1 to 4. The control unit includes:
The computer according to claim 5, wherein, at the time of starting with the initialization processing, if the first information is not stored in the storage unit, a numerical value used for the second calculation is set to a second numerical value. A setting method executed by a computer having a control unit capable of executing a first calculation in response to input of an execution instruction,
The control unit includes:
After executing a certain process, the first information indicating that the certain process has been executed is stored in the storage unit of the computer,
When the computer is started with an initialization process, if the first information is stored in the storage unit, a process of setting a numerical value used for the first calculation to a predetermined first numerical value is executed; And,
A setting method, wherein second information indicating that the certain process has not been executed is stored in the storage unit. By a computer of a computer capable of executing the first calculation in response to the input of the execution instruction,
After execution of a certain process, the first information indicating that the certain process has been executed is stored in a storage unit of the computer,
When the computer is started with an initialization process, if the first information is stored in the storage unit, a process of setting a numerical value used for the first calculation to a predetermined first numerical value is executed; And,
A program for causing the storage unit to store second information indicating that the certain process has not been performed.