JPH0642699B2 - Personal computer communication system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a communication system of a personal computer (hereinafter, abbreviated as a personal computer), and in particular, it is not a business personal computer but an inexpensive personal computer (specifically, product name M).
The present invention relates to a communication system for performing data communication between an SX and a family computer for game sold by the applicant of the present application; product name) and a center.

(Prior Art) Conventionally, communication using a public telephone line was performed between a business personal computer and a large-sized computer, but communication was performed with a low-cost home personal computer (for example, MSX or family computer; product name). Was not done.

Although an image communication system called a captain system has been put into practical use, a personal computer or an adapter which is a terminal device is required.

(Problems to be Solved by the Invention) Since business personal computers and captain system adapters are expensive, they have a low penetration rate and are not practical for networking. In addition, the former must operate the keyboard according to a predetermined procedure, which is complicated to operate or handle. Especially for personal computers for home use, since the users are children and housewives, it is desirable that they be easy to handle and inexpensive to communicate with. On the other hand, in the latter, when the communication line is established, the image data is unilaterally transmitted from the information provider and all of the image data necessary for one-screen display is transmitted, so that the communication volume increases and the interactive communication is performed. Cannot be done. Further, since both users call by using a manual dial when accessing the center from the user, an error in dial operation is likely to occur, and a person who does not have a terminal device may dial.

Therefore, an object of the present invention is to provide a personal computer that saves the trouble of dial operation, has few dial operation errors, can be easily operated by anyone, requires a small amount of communication, and allows only a predetermined user to communicate. It is to provide a communication system.

(Means for Solving Problems) The present invention relates to communication for performing data communication between an inexpensive personal computer connected to a monitor display device and a host computer to which a plurality of personal computers are connected via a public telephone line. A system, a personal computer, a host computer,
An external storage means and a communication control means are provided.

The personal computer includes a mode selection unit, an input unit, a temporary storage unit, a processing unit, and an image signal generation unit. The external storage means includes a fixed data storage area for storing telephone number data of the information provider, user identification code, fixed image data, and program data for communication control and display control.
The communication control device includes automatic dialing means, transmitting means and receiving means.

(Operation) An information provider having a host computer distributes or sells an external storage means such as a magnetic recording medium (floppy disk) or an IC card to a member or a user with a certain qualification. When the user wants to communicate with the information provider, he / she attaches his / her own external storage means to the reading means and selects the communication mode. Then, the data stored in the external storage means is read by the reading means and loaded into the temporary storage means. Based on the communication control program, the processing means provides the image signal generating means with image data for inputting, for example, a communication procedure or communication data by moving a cursor or the like on the screen, and causes the monitor display device to display the image data. Operation of input means (move cursor, select characters, etc.)
The data input by is loaded into the temporary storage means as the data to be transmitted.

On the other hand, the automatic dial means included in the communication control device automatically dials based on the telephone number data of the information provider read from the external storage means. Then, when the line with the host computer is established, the transmission means transmits the user identification code and the transmission data by, for example, half-duplex communication. The host computer executes predetermined data processing based on this transmission data, and transmits the processing result data. The receiving means receives this data and loads it into the temporary storage means. The processing means synthesizes the fixed image data read from the external storage means and the received data (variable data) and gives display data for display on the monitor display device to the image signal generating means. Thereby, image display control is realized with a small communication amount.

Then, each time data to be transmitted is input by the input means, or if a large amount of data to be transmitted is input in advance, it is divided into a predetermined data unit amount, and the data is transmitted between the communication control device and the host computer. Data communication is executed.

(Embodiment) FIGS. 1 to 3 are system configuration diagrams of an embodiment of the present invention. In particular, FIG. 1 is a schematic block diagram thereof, and FIG. 2 is an external perspective view of equipment provided on the user side. 3 shows a detailed block diagram of FIG.

First, the outline of the present invention will be described with reference to FIG. In the present invention, a plurality of users (IDs) are information providers (I
A floppy disk (FD) 20 which is an example of an external storage means that serves as a member of P) and plays a role of a kind of key when communicating with an information provider is sold to the member for a fee. Or, it will be distributed free of charge in exchange for payment of membership fees. A user is a video game machine (for example, a product name sold by the applicant of the present application; a family computer) 10 which is an example of a personal computer (personal computer),
A magnetic disk drive device (hereinafter FD) as an example of a reading unit
D) 30 and the communication control device 50 are prepared. A RAM adapter 40 (see FIGS. 2 and 3) is provided in association with the video game machine 10 and the FDD 30. The television game machine (hereinafter referred to as a game machine) 10 includes a television receiver 1 which is an example of a monitor display device.
Are connected via the RF switch 2. This RF switch 2 gives this signal to the television receiver 1 when the RF signal is given from the game machine 10, and gives it the television signal received by the antenna 3 when the RF signal is not given. Further, the game machine 10 is connected with the printer 4 and / or the tablet 5 as required.

When the user wants to communicate with the information provider, the FD 20 is used. For that purpose, the communication control device 50 is connected to the communication control device 61 on the information provider side via a public telephone line (or circuit diagram) 6. The communication control device 61 is capable of communicating with a plurality of users at a time, and includes a modem and a communication control processor (CCP). In addition to this, the information provider side has a host computer 6 having a high processing speed.
2 and a file memory 63 are installed.

This communication system is used to communicate data (such as homework correctness check and grade list) to support preparation and review of cram schools at home, search various character databases such as captains, and product communication. Used for sales, etc.

Next, details of the device provided on the user side will be described with reference to FIGS. 2 and 3. The game machine 10 has a housing 11
including. The housing 11 has two controllers 12, 1
2'is connected. One controller 12 has an A button 12a, a B button 12b, and a cross switch 12c.
, Select switch 12d, start switch 12
including e and. A button 12a or B button 12b
It is used to instruct the input of characters and numbers selected by the cross switch 12c in the communication data input mode, and is used in the game mode to instruct the operation state of the character (for example, jump, gun firing, etc.). The cross switch 12c is used for moving the cursor on the screen to select characters or numbers in the input mode, and is used to specify the moving direction of the character (for example, four directions of up, down, left and right) in the game mode. .

The select switch 12d is used for selecting a mode displayed on the mode selection screen and for selecting a game type (for one player or two players) in the game mode. The start switch 12e is used for a start command. The other controller 12 'has the same configuration as the controller 12 except that the select switch 12d and the start switch 12e are not provided.

A switch for mode selection and data input may also be used, and a keyboard may be provided in addition to the controllers 12 and 12 '.

Further, the housing 11 has an upper surface provided with an insertion opening (not shown) for inserting a ROM cartridge (not shown). The edge connector 13 is built in the inside of this insertion opening. Input / output (I / O) to the edge connector 13
The interface 14 is connected. Controllers 12 and 12 'are connected to the I / O interface 14, and a CPU (central processing unit) 15 and PPU are connected.
(Image processing device) 16 is connected. Then, the signals from the controllers 12 and 12 'are I / O interface 1
4 to CPU 15. Edge connector 1
The data read from the external memory (for example, ROM cartridge or RAM adapter 40) attached to
CPU 15 and P via I / O interface 14
It is given to the PU 16. The CPU 15 is connected to a video RAM 17v for storing image data for one screen and a working RAM 17w for temporarily storing score data during the game and other various processing data.

The PPU 16 generates an image signal for a game based on the image data from the CPU 15 and supplies it to the RF modulation circuit 18. The RF modulation circuit 18 is, for example, the edge connector 1
It is activated when the ROM cartridge or the RAM adapter 40 is connected to 3, and converts the image signal given from the PPU 16 into, for example, an NTSC TV signal. This TV signal is given to the antenna terminal of the home TV receiver 1 via the RF switch 2 and the coaxial cable. Therefore, the CPU 15, the PPU 16, and the RF modulation circuit 1
An image signal generating means is constituted by 8 and.

The RAM adapter 40 includes a case having a built-in substrate 41 and formed in a T shape. On the board 41, RAMs 43 and 43 ', which are an example of a temporary storage means, which are composed of one or a plurality (two in the figure) of LS1 are mounted. Then, by inserting the board 41 into the edge connector 13, the plurality of electrodes formed on the edge portion of the board 41 are electrically connected to the edge connector 13.

The FDD 30 is connected to the RAM adapter 40 via a cable.
Are connected. The FDD 30 includes a housing 31. Case 31
An insertion opening 32 for inserting the FD 20 is formed on the front surface of the. Specifically, as shown in FIGS. 4A and 4B, the FD 20 is configured by housing a disk-shaped magnetic disk 22 having a hub 21 formed in a central portion in a case 23. The case 23 is selected to be larger than the disk 22. That is, the width a of the case 23 is selected to be equal to or smaller than the width of the insertion opening 32, and the length b of the case 23 in the insertion direction (depth direction) is selected to be larger than the diameter of the disk 22 (2r <b). The length b2 from the center to the front end in the insertion direction (upper side in FIG. 4A) of the case 23 is longer than the length b1 from the rear end (lower side) in the insertion direction (b2> b1). And
A head insertion hole 24 is formed on one main surface of the case 23. A write protect claw 25 is formed at one end of the case 23 on the front end side in the insertion direction. Furthermore, case 2
A first identification symbol portion 26 is provided on at least one of the main surfaces of No. 3 along the width direction of the rear end in the insertion direction. In the identification symbol portion 26, an identification symbol formed of a combination of a plurality of characters such as letters, kana or numbers is formed in an imbossed shape.

The identification symbol is not limited to characters, but may be a combination of symbols such as circles, triangles, and squares, or a meaningless symbol such as a zigzag pattern. Further, one of a plurality of identification symbols at a certain position may be formed as a recess deeper than other characters. further,
If the FD 20 is for double-sided recording, the identification mark portions 26 are formed on both sides of the case 23.

The first identification symbol portion 26 is provided inside the insertion opening 32.
The second identification symbol portion 31 shown in FIG.
1 is embossed. Therefore, the identification symbol portion 26
When the FD 20 in which is formed is inserted into the insertion opening 32, the identification symbol portion 26 and the identification symbol portion 311 are fitted and normally attached because they are regular FDs, but the identification symbol portion 26 is formed. If it is not a predetermined symbol or is not a predetermined symbol, it will not fit with the identification symbol portion 311 and will not be properly mounted and cannot be used.

Further, a disk drive system 33 and a magnetic head 34 are provided inside the insertion slot 32. Disk drive system 33
And the magnetic head 34 is connected to the I / O interface 35. When the disk drive system 33 drives the FD 20 to rotate, the magnetic head 34 reads various programs and other data recorded in advance in the FD 20,
Or write new data. Of the data read by the magnetic head 34, audio data is given to the sound source circuit 36 via the I / O interface 35. The sound source circuit 36 synthesizes voice data (digital data) by voice to generate a voice signal (analog signal). This audio signal is amplified by the audio amplifier circuit and given to the RF modulation circuit 18 via the substrate 41 and the edge connector 13.

An I / O interface 51 of the communication control device 50 is connected to the I / O interface 35 of the FDD 30 via a connector 38. A communication control processor (CCP) 52 having an automatic dial function and other communication control functions is connected to the I / O interface 51, and a modem 53 is connected to the I / O interface 51. The modem 53 includes a modulation / demodulation function, an error control function and the like in addition to the transmission and reception functions. The communication control device 61 is connected to the modem 53 via the public telephone line 6.

FIG. 6A is a diagram schematically showing the storage area of the FD.
The disk 22 of the FD 20 has a plurality of recording areas 22a to 22.
Including e. The recording areas 22a to 22d are fixed data recording areas that cannot be rewritten by the user because they are determined by the information provider and are written when the FD 20 is distributed. Of these, in the recording area 22a, data for discriminating the authenticity of the FD 20 and data for initializing the FDD 30 are recorded (stored). The telephone number data of the information provider and the user identification code are recorded in the recording area 22b. This telephone number data is used for automatic dialing. The user identification code is assigned a different number for each member, and is used to determine who is calling when the member calls.
Program data for image display control and communication control is recorded in the recording area 22c. Fixed image data is recorded in the recording area 22d. Data for variable display (variable data) is recorded in the recording area 22e.

Here, the fixed image data is image data that is always displayed in an image pattern determined by the purpose of communication with the user (member) by the information provider. For example, if the purpose of communication is to be used for cram school and student learning, a question sentence and a choice branch of answers (0, 1 to 9 if the answer is a number, a kana character pattern if it is a kana, etc.) When used for mail order, the product catalog (menu) of product name, product code, price, etc. for each product and instruction of application procedure are fixed image data. On the other hand, the variable display data is
The former example is data showing an answer, a correct answer, and a grade, and the latter example is data showing a code of an ordered product, its quantity, and payment conditions. However, it goes without saying that the fixed image data and the variable display data are not limited to this, and may be modified or determined according to the purpose of use.

Then, the temporary or all of the data recorded in these recording areas 22a to 22e is read out, and the RAM 43,
43 'is temporarily stored.

FIG. 6B is a diagram schematically showing the recording area of the file memory. The file memory 63 includes an area 63a for storing user codes of all members. An area 63b for storing a password, an area 63c for storing address book data such as a user's name, address, and telephone number, and an area 63d for storing communication data, processing results, etc., corresponding to each user code. Is included.

7A to 7C are diagrams showing an example of a display screen of the television receiver.

8A and 8B are flowcharts for explaining the operation of each unit on the user side, and FIG. 9 is a flowchart for explaining the operation of each unit on the information provider side (particularly the communication control device and the host computer). It is a flowchart.

Next, the specific operation of this embodiment will be described with reference to FIGS.

The user connects each device as shown in FIG. 2 prior to an operation such as input of communication data. Then, in response to the power being turned on, the CPU 15 starts the next operation (however, S17).
-S26 indicate the operation of the communication control device 50, and S50-S63 indicate the operation on the host side). That is, in step S1, it is determined whether the FD 20 has been inserted.
If the FD20 is inserted and properly attached,
A switch (not shown) that detects that the product has been installed correctly
This is determined according to the output of the above, and the process proceeds to step S2. In step S2, a drive command signal is given to the disk drive system 33, and the magnetic head 34 reads data from the disk 22. This data is R of RAM adapter 40
It is temporarily stored in the AM 43, 43 '. Continuing step S3
Then, it is determined based on the authenticity determination data whether or not the FD 20 is a regular FD 20 distributed to the member.

If the authenticity determination data is not the predetermined data, it is wasteful by disabling the communication control device 50 and prohibiting communication with the information provider after a message indicating that the data cannot be used is displayed in step S4. Eliminate communications.

On the other hand, it is determined that the FD 20 is not inserted in step S1 or that the predetermined authenticity determination data is recorded in step S3.
After it is determined that it is D20, the process proceeds to step S6. In this way, it is determined whether or not the FD is a predetermined FD based on the shape of the FD 20 and the recorded data, and communication is permitted only when the external storage medium is a predetermined one. There is an advantage that the user side can exclude communication using a similar FD.

In step S6, the mode selection screen as shown in FIG. 7A is displayed on the television receiver 1 based on the fixed image data loaded in the RAMs 43 and 43 '. At this time, if the user wants to communicate with the information provider, look at this screen and select switch 12d (cross switch 12c
But you can move the cursor by
Select the communication data input mode. According to step S
In step 7, it is determined that one of the switches included in the controller 12 has been operated. In step S8, it is determined that the mode is the data input mode for communication, and in step S9 (S12 if there is no need to input a password). ). In step S9, a fixed image used for communication data input is displayed based on the fixed image data.
Specifically, at the beginning, the password input instruction message is displayed along with a pattern of numbers or English characters constituting the password. When the user looks at this image and inputs the password, it is determined in step S10 that the password has been input, and in step S11 the input password is loaded into some areas of the RAMs 43 and 43 '. In the following step S12, it is determined that no transmission data has been input, and the process returns to step S9.

After that, in step S9, a fixed image corresponding to the communication purpose, for example, the seventh image if used as a learning system.
0-9 for selecting question sentences and answers as shown in Figure B
The image of the character pattern, and the image of the product catalog such as the product code, the product name, and the unit price are displayed when the product is used for the mail order of the product. Looking at this image, the user operates the cross switch 12c or the like to obtain data to be communicated (for example, an answer surrounded by a frame in FIG. 7B, or data such as selection of the ordered product code of the product and its quantity). When input, it is determined in step S10 that the password is not input, and the process proceeds to step S12. In step S12, it is determined that transmission data has been input. Continuing step S
In 13, the input data is associated with the fixed image data and loaded into the RAMs 43 and 43 '. Continuing step S1
In 4, the input data such as the answer surrounded by the frame in FIG. 7B is displayed in addition to the fixed image. Step S15
Then, it is determined whether or not the input of communication data is completed.
However, if the input is not completed, the switch that commands the end is not operated (or the cursor is moved).
When that is determined, the process returns to step S9, and the above-described operations (S9, S10, S12 to S15) are repeated.

Then, when all the data to be transmitted are input and the end is instructed, the process returns to step S6. When the mode selection screen is displayed in step S6, the user moves the cursor to select the communication mode. Then, in step S7, it is determined that the controller 12 has been operated, in step S8 it is determined that the communication data input mode is not set, and in step S16, it is determined that the communication mode is selected, and then step S17.
(See FIG. 8B).

In step S17, the CCP 52 gives the telephone number data of the information provider read from the FD 20 to the modem 53. The modem 53 sends a dial pulse to the public telephone line 6 to call the information provider. On the other hand, the host computer 62 constantly determines in step S50 (see FIG. 9) whether or not there is a call from the user. If there is a call, the process proceeds to step S51, and the communication control device 61 sends a response signal (a signal indicating that the receiver has been picked up)
Is sent. In response, the modem 53 causes the RAMs 43 and 43 '.
Send the user code (and password if necessary) loaded in. On the host side, the user code and password are received in step S52 and loaded in a buffer memory (not shown). In a succeeding step S53, the memory file 63 is searched based on the user code received by the host computer 62, and it is determined whether or not the user is a registered user. If the call is from an authorized member, after it is determined that the user code is a predetermined user code, the password received in step S54 is compared with the password registered in advance in the memory file 63 for each user code. Then, it is determined whether the passwords match. If the passwords match, the line connection state is held in step S54. In response to this, the CCP 52 determines that the link of the line has been established, and proceeds to step S21. In step S21, the transmission data loaded in the RAMs 43 and 43 'are sequentially read out, and the modem 53 divides the transmission data into fixed lengths, adds an error detection code, and transmits the modulated digital signal. To do. On the other hand, the host side waits until there is received data in step S56, and if it is judged that there is received data, the received data is temporarily stored in a buffer memory or the like in step S57.

In subsequent step S58, the received data is detected as an error, and it is determined whether or not there is an error. If it is determined that there is an error, a retransmission request code is sent in step S59. When the modem 53 receives this, it is determined in step S22 that there is a resend request, the process returns to step S21, and the transmission data is retransmitted. vice versa,
If it is determined that there is no error, predetermined data processing is executed in step S58. Specifically, in the case of a learning system, the data for judging the correctness of the answer, scoring, and creating a grade table are registered in the area 63d of the file memory 63. For example, creating an invoice. After that, in step S61, processing results (for example, data for correctness / incorrectness determination mark, correct answer for error problem, scoring and grade ranking for learning system, ordering product code and quantity confirmation data for product sales system, etc.) Is transmitted by the communication control device 61. At this time, CCP5
2 continues to determine the presence or absence of received data in step S23,
Waiting for incoming data to arrive. Then, when the transmission data from the host side is received, it is judged and the process proceeds to step S24. In step S24, the received data is loaded into the RAMs 43 and 43 '.

When the host has finished transmitting all the data, it is judged in step S62 that the line disconnection signal is transmitted in step S63. In parallel with this, on the user side, after the reception end is judged in step S25, a line disconnection signal is transmitted in step S27.
As a result, the public telephone line 6 is disconnected and the communication between the two ends.

If it is determined that the user code is not the predetermined user code in step S53 or the password does not match in step S54, the line disconnection signal is sent in step S63 without performing the operations in steps S55 to S62. This has an advantage that it is possible to prevent unauthorized communication using the FD 20 of another person.

After the end of the data communication as described above, the CPU 15 has a RAM
Fixed image data (for example, data for displaying as shown in FIG. 7B) loaded in 43 and 43 'and received data sent from the host side (for example, mark indicating correctness, correct answer of error problem) , Results, etc.), and data for displaying a composite image as shown in FIG. 7C is given to the PPU 16 to display the composite image on the screen of the television receiver 1. In order to make it easier to distinguish,
In FIG. C, the display screen portion based on the received data (variable data) is shown surrounded by a dotted frame.

In this way, the data for the image to be fixedly displayed is stored in the FD 20, and only the minimum necessary variable data is communicated between the user side and the information provider (host) side. Therefore, there is an advantage that the amount of transmitted information can be significantly reduced and the communication cost can be reduced.

By the way, when the game mode which is the original purpose of use of the game machine 10 is selected while the mode selection screen is displayed in the above-mentioned step S6, after it is determined that it is not the communication mode in the above-mentioned step S16. In step S29, it is determined that the game mode is set. In this case, the CPU 15 is the F cartridge installed in the FDD 30 or the ROM cartridge inserted in the insertion slot.
A program for the game is executed based on the game program data stored / recorded in D20.
When any other mode is selected, the program of the mode selected in step S31 is executed.

Other Embodiments In the above-described embodiments, various devices (10, 30,
Although the case where 40 and 50) are housed in separate housings and they are connected by the connecting cord has been described, they may be housed in a single housing and configured integrally. Although the case where the FD is used as an example of the external storage means has been described, a semiconductor memory or an optical card housed in an IC card or a cartridge may be applied instead (or in addition). In that case, a reading means suitable for the storage (or recording) medium is used. Further, the control procedure for communication can be freely changed according to the purpose of use. Further, it goes without saying that the application of the present invention is not limited to learning systems, product sales, etc., but can also be used for various communications using a relatively inexpensive personal computer (for example, communications of characters and graphic data like a captain system). Absent.

(Effects of the Invention) As described above, according to the present invention, when communication is performed using a relatively inexpensive personal computer, it is automatically performed based on the telephone number of the information provider stored in the external storage means. Since dialing is performed, the user's time and effort for dialing can be saved, errors in dialing can be eliminated, and anyone can easily operate. Also, since only users who have a predetermined external storage means are allowed to communicate,
It is possible to exclude the use other than the members. Therefore, even if the information provider pays the communication cost (telephone fee), it is possible to reduce the unnecessary cost burden on the information provider.
Further, since the fixed image data is stored in the external storage means and only the minimum necessary variable data is communicated, compared to the method of transmitting all the data for one screen like the conventional captain system. As a result, the amount of communication can be significantly reduced and the communication time can be significantly reduced. Therefore, it is possible to improve the operating rate of the host computer on the information provider side.

Furthermore, in a preferred example, since the authenticity of the external storage means is determined, strict member usage management is possible.

[Brief description of drawings]

1 to 3 are system configuration diagrams of an embodiment of the present invention. In particular, FIG. 1 is a schematic block diagram thereof, and FIG. 2 is an external perspective view of equipment provided on the user side, and FIG. Shows a detailed block diagram of FIG. 4A and 4B are detailed views of the floppy disk applied to this embodiment, in particular, FIG. 4A is a plan view thereof, and FIG. 4B is a sectional view taken along line BB of FIG. 4A. . FIG. 5 is a perspective view of a second identification symbol portion provided inside the insertion opening of the magnetic disk drive device. FIG. 6A is a diagram schematically showing the recording area of the floppy disk, and FIG. 6B is a diagram schematically showing the recording area of the file memory. FIGS. 7A to 7C are views showing examples of display screens. In particular, FIG. 7A shows a mode selection screen, FIG. 7B shows a fixed image display screen, and FIG. 7C shows a composite image display screen. 8A and 8B are flowcharts for explaining the operation of each unit on the user side. FIG. 9 is a flow chart for explaining the operation of each unit on the host computer side. In the figure, 10 is a video game machine (personal computer), 12 and 12 'are controllers (mode selection means, input means), 15 is a CPU (processing means), 20 is a floppy disk (FD; external storage means), and 30 is Magnetic disk drive (FDD; reading means), 40 is R
AM adapters (temporary storage means), 50 and 61 are communication control devices, and 62 is a host computer.

Claims (1)

[Claims] 1. A communication system for performing data communication between a personal computer connected to a monitor display device and a host computer provided on the information provider side, wherein a plurality of personal computers are connected via a public telephone line. An external storage means configured to be detachable from the personal computer and carried by a user who desires data communication with an information provider; and the external storage provided on the personal computer side. When the means is attached, it is connected to a reading means for reading the stored data and a personal computer of a user who desires data communication with an information provider, and is connected to the personal computer via the public telephone line. A communication control device connected to the host computer; Telephone number data of the information provider, a user identification code for identifying the user, fixed image data for a plurality of screens determined by the purpose of use of the information provided by the information provider to the user, and the communication control A fixed data storage area that presets and stores program data for controlling communication between the personal computer and the host computer by the device and for controlling display of images related to the communication on the monitor display device, The personal computer includes a mode selection unit for selecting a communication mode or a mode other than communication, an input unit for inputting desired data, and a temporary storage for temporarily storing input data or transmission / reception data from the input unit. It operates according to the operation of the storage means, the mode selection means, and the input means, and A processing unit that executes a process based on a program that is defined; and an image signal generation unit that generates an image signal for displaying a desired image on the screen of the monitor display device according to the output of the processing unit, The communication control device, after the line connection is established between the automatic dial means for automatically dialing based on the telephone number data read by the reading means, and the host computer by the automatic dial means, A transmission means for transmitting the data to be transmitted stored in the user identification code and the temporary storage means, and a processing result after the host computer receives the data from the transmission means and executes predetermined data processing And a receiving means for receiving the data when the data is transmitted to the external storage device. The fixed image data read from the stage and the data received by the receiving means are combined to create display data to be displayed on the monitor display device, and the display data is given to the image signal generating means. , Personal computer communication system.