JPS5856121A - Data processing system - Google Patents

Abstract

PURPOSE:To allow a data processing system to operate selectively as a master and a slave system adequately by storing plural programs in a magnetic bubble memory for POS (Point of Sales) terminals in common, and selecting them. CONSTITUTION:When the power source is turned on, a file selection part 9 selects a master function firstly to read a master program out of a magnetic bubble memory 10, and the program is loaded into a main memory 12. Then, a POS terminal operates as a master. When an operator operates the slave operation selection key on a keyboard 2, the file selection part 9 selects a slave program in the magnetic bubble memory 10 and loads it into the main memory 12, so that the POS terminal operates as a slave. Then, the master operation selection key on the keyboard 2 is operated to allow the POS terminal to return to the master operation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operating device for a PO8 terminal having a magnetic bubble memory, and in particular, to a magnetic bubble memory having a master PO8 terminal loop p-gram and a slave PO8 terminal.
This relates to a data processing system in which multiple programs of 8-turnal programs are stored and are normally operated as one PO8 terminal, and operated as necessary on the other PO8O8 terminal. It is.

Traditionally, at large retail stores such as department stores and supermarkets,
In order to be able to manage the sales status of products at each point in time when the product is sold, PO8 (Po1nt of 8ales)!
- POS terminals are placed in each sales floor, and the sales status of products is input from these POS terminals and sent to the center's host terminal.
The processor compiles sales data and manages product sales status. In other words, as shown in Figure 1, each sales floor has P.
OS terminals P1 to P4 are installed, and one of them is operated as a master M for each group, and the others are operated as slaves 8.

Now, when the POS terminals P1 to P4 shown in FIG. 1 are made into one group, the POS terminal P1 is operated as a master, and the other POS terminals pg to P4 are operated as slaves. In this case, the master M temporarily stores the sales status of the product input from each slave S in its memory unit mr, and transmits it to the central processing unit of the center at regular intervals, for example, and stores the product name, quantity, amount, transaction type, etc. Report sales data such as In addition, the slave S stores the sales status of the sold products in its memory section m and transmits this to the master M. Therefore, since the operating forms of the master M and the slave S are different, the program that operates this is also different. Of course, it is an ingredient.

By the way, recently the master M and slave S are P of the same structure.
It is configured with an OS terminal, and by changing only its program, it can operate as a master M or as a slave S. The master M was prepared with a magnetic disk on which a program for the master was written, and the slave S was prepared with a magnetic disk on which a program for the slave was written. Since this external magnetic disk device is large, the memory portions of these PO8 turns ps~pi mr%mt, m2,
Makago also had to be large. Moreover, even when the sales floor is extremely busy, master M only operates as a master, which poses a problem.

Therefore, in order to improve these drawbacks, the present invention stores necessary programs in a magnetic bubble memory,
It is an object of the present invention to provide a data processing system which loads a program for the master when operating as a master M, and programs a program for the slave when operating as a slave 8. To this end, the data processing system of the present invention includes an initial reset output means that is initially reset when the power is turned on, and a file that selectively reads and controls programs from a magnetic pull memory in which a plurality of programs are stored. A selection means, a loading means for writing the program written in the magnetic bubble memory into another memory, and an operation selection means for selecting an operating state are provided, and when the power is turned on, the initial reset output means is outputted. The operation is controlled by controlling the file selection means so that when an operation state is selected from the operation selection means, a program corresponding to the operation state is read from the magnetic bubble memory. The feature is that the state can be set to 5 depending on the selection.

An embodiment of the present invention will be described below with reference to FIGS. 2 and 3.

FIG. 2 shows the configuration of an embodiment of the present invention, and FIG. 3 is a 7P chart explaining its operating state.

In FIG. 2, 1 is a main control section, 2 is a keyboard for selecting a master or slave function, 3 is a keyboard control section, and 4 is a slip 70 knob. This flip 7p
The knob '4 is initially reset when the engine is started, but it is set after that. Reference numeral 5 denotes a timing control section which controls the effective timing for performing the i-star function or the slave function. 6.
7 is an AND gate, and 8 is an OR gate. The output of the cough or gate $ or the output of the AND gate 7 is connected to the file selection section 9, and if the master function is requested according to any of the above outputs, the master program is selected, and if the slave function is requested, the output is connected to the file selection section 9. is designed to select and execute a slave program to perform slave functions. 10 is a small and large capacity magnetic bubble memory, 11 is a four-dimensional memory, and 12 is a main memory.
It is composed of AM. Note that a part of the main control unit 1 is a ROM.
This ROM stores resident programs such as p-da control programs and basic programs. The bubble memory stores a slave program, a master program, and other non-resident programs, and the main control section 1 executes the programs after the start of operation.

The operation of the PO8 Tartar configured in this way is shown in the 3rd W.
This will be explained with reference to the flowchart of A.

(1) First, the 7 lip-flop 4 is set by an initial reset immediately after starting the PO8 primary by turning on the power (not shown), and its output is sent to the master manual section of the file selection section 9 via the OR gate 8. The master function, which is the input and thereby the operation of the POS terminal, is initially selected. From the result, the master program is read out from the magnetic bubble fist memory 10, and the master program is read out from the magnetic bubble fist memory 10.
It is controlled by 50-da 11 so that it is 1-1 to 2.

When this loading into the main memory 12 is completed, the loader 11 resets the 7-ripf 4. Soshi 1
:The POS terminal operates as a master by the master program loaded into the main memory 12 constituted by RAM.

(2) When the operator operates the slave operation selection key from the keyboard 2, the keyboard control section 3 detects this and outputs "1" to the AND gate 7. When the timing control section 5 outputs a timing signal "1" indicating the switching timing, the AND gate 7 outputs "1", which is applied to the slave input section of the file selection section 9. As a result, the file selection section 9 instructs the loader 11 to execute the slave program p-denzo.

As a result, the loader 11 reads the slave program from the magnetic bubble memory 10 and stores it in the main memory 1.
Load to 2. This causes this POS terminal to operate as a slave.

(3) After the operator comes from keyboard 2! When the star operation selection key is operated, the keymate control section 3 detects this and outputs "1" to the AND gate 6. Then, when the timing control section 5 outputs the timing signal "1", the AND gate 6 outputs "1", which is applied to the master manual section of the file selection section 9 via the OR gate 8, and the master program is started again. Since it is loaded into the main memory 12, the POS terminal can return to operation as a 1 star.

In the above description, an example was explained in which the master program is loaded when the power is turned on, but it is of course possible to configure the slave program to be loaded.

As explained above (in the present invention, a plurality of programs are commonly stored in the magnetic bubble memory for POS terminals, and by selecting one of these programs, it is possible to perform an appropriate selection operation for either the master or the slave. Therefore, When the sales floor is busy, the master POS terminal can be used as a temporary slave POS terminal to handle customer purchases.

It will be possible to operate it again later as a master POS terminal.

Furthermore, the master program and slave programmer can be written in a small magnetic bubble memory and used commonly for each POS terminal.
As in the past, there is no peace of mind in preparing a magnetic disk containing the slave program and a magnetic disk containing the master program, and it is not necessary to have a large magnetic disk of 1 ton. Therefore, not only can a POS terminal be configured locally, but it can also be downsized, and the space on the sales floor can be saved.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional POS terminal, FIG. 2 is a configuration diagram of an embodiment of the present invention, and FIG. 3 is a 74-chart explaining the operating state of the present invention. In the figure, 1 is the main control section, 2 is the keyboard, 3 is the keyboard control section, 4 is the flip 70 knob, 5 is the timing control section, 6.7 is the AND gate, 8 is the OR gate, 9 is the file selection section, Reference numeral 10 indicates a magnetic bubble memory, 11 indicates a loader, and 12 indicates a main memory. Patent applicant Akira Yamatani, patent attorney representing Fujitsu Limited

Claims (1)

[Claims] (1) An initial reset output means that is initially reset when the power is turned on; a file selection means that selectively outputs and controls programs from a magnetic bubble memory storing a plurality of programs; A load means for writing a program to be executed into the main memory, and an operation selection means for selecting an operation state are provided. The data processing system is characterized in that the file selection means selects an operating state so that when a program is selected, a corresponding program is read from the magnetic bubble mesh.