KR930000675B1 - Computer terminal with multiport function - Google Patents

Abstract

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Description

Computer terminal with multiport function

1 is a connection diagram of a general computer terminal.

2 is a block diagram of a terminal of a conventional general computer.

3 is a block diagram of a computer terminal according to the present invention;

* Explanation of symbols for main parts of the drawings

10: terminal control device 20: port expansion device

30a to 30f: Computer terminal 210, 310: Communication control unit

220,320: Communication buffer 230,330: Central processing unit

240,340: screen buffer unit 350: screen output unit

The present invention relates to a computer terminal (terminal group) to be used in connection with a large computer, and more particularly to a computer terminal manufactured to maximize the efficiency of the work by implementing a plurality of terminal functions in one terminal.

A conventional general computer terminal is coaxial (hereinafter referred to as COAX) communication terminal a1, a2, b, C1 to C4 to a terminal control device 10 connected to a host computer as shown in FIG. It is connected to and used. For example, in the case of a large computer of IBM (registered trademark), general COAX communication ports (a1, a2) can connect only a dedicated terminal (3270 terminal) of IBM series, and a port expansion device (IBM series). COAX communication port (b) which can be connected to the 3299 device) can be expanded up to eight ports through the port expansion device (3299 device) 20, as shown in FIG. C1-C8 can connect only the said dedicated terminal 3270 terminal. However, when a general dedicated terminal (3270 terminal) is connected to the port (b) to which the port expansion device 20 can be connected, only one of eight expandable ports (C1 to C8) is used, and the remaining seven ports are used. You will not. Therefore, only one port function, which is part of the function of port (b) that can handle up to eight terminal functions, is not only inefficient. The conventional terminal has a problem that two or more port functions (multi-port functions) cannot be processed by one terminal.

The present invention devised to solve the above problems, when connected to the general COAX communication ports (a1, a2 and C1 to C8) operates like a conventional dedicated terminal (3270 terminal), attaching a port expansion device (3299 device) The object of the present invention is to provide a new computer terminal configured to implement up to eight terminal roles when connected to the COAX communication port (b).

The present invention is a computer terminal connected via a COAX communication port that can be connected to the port expansion device to the terminal control device connected to the host computer to achieve the above object, and is connected to the terminal control device through the COAX communication port Communication control means for recognizing and distinguishing the port number of the communication data, connected to the communication control means, consisting of a plurality of independent communication buffer communication buffer means for storing data independently for each port, connected to the communication buffer means A central processing means for periodically retrieving and processing data stored in each communication buffer, and a screen buffer means connected to the central processing means and configured with a plurality of independent screen buffers to store processed data in a corresponding screen buffer, respectively. Configured to include one computer terminal multiple by port Characterized by carrying out the re.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings of FIGS. 2 and 3.

2 is a block diagram showing the structure of a conventional general computer terminal, where 210 is a communication control device, 220 is a communication buffer, 230 is a central processing unit, and 240 is a screen buffer.

The communication controller 210 analyzes a signal transmitted from the COAX communication port and stores the signal in the communication buffer 220, the contents of which are processed by the central processing unit 230 and stored in the screen buffer unit 240. Appears on the screen. In addition, the data input by the user through the keyboard is stored in the buffer unit 240 and the communication buffer 230, and is transmitted to the COAX communication port through the communication control unit 210.

On the other hand, the data signal transmitted through the port (b) to which the port expansion device (3299 device) can be connected is up to eight different port numbers for signals transmitted through the general ports (a1, a2, and C1 to C8). A signal for distinguishing the signal is added and transmitted. However, the conventional one computer terminal (3270 terminal) is to recognize only one of them.

3 is a block diagram showing a schematic configuration of a computer terminal having a multi-port function according to the present invention, in which 310 is a communication control unit, 320 is a communication buffer unit, 330 is a central processing unit, 340 is a screen buffer unit, and 350 is a Each screen output unit is shown.

The communication control unit 310 is connected to the terminal control device through the COAX communication port and can recognize all of the data having a plurality of different port numbers by distinguishing them. A well-known dedicated IC chip already developed and used for the terminal control device, etc. Implement using

The communication buffer 320 is a memory shared by the communication control unit 310 and the central processing unit 330, and is connected between the communication control unit 310 and the central processing unit 330, and has eight independent communication buffers 321 to 328. It consists of data and stores data independently for each port.

The central processing unit 330 is connected to the communication buffer unit 320 to process the contents and output to the screen buffer unit 340.

The screen buffer unit 340 is connected to the central processing unit 330 and consists of eight independent screen buffers 341 to 348 so that the result data to be processed is stored in the corresponding screen buffer and output to the screen output unit 350. do.

According to the present invention configured as described above, the communication control unit 310 recognizes the port number of the communication data so that the corresponding data is stored in the communication buffers 321 to 328 corresponding to one-to-one, and the central processing unit 330 By periodically retrieving and processing the data stored in each communication buffer and storing the result in the corresponding screen buffers 341 to 348, the multi-port function is implemented.

The effect by the present invention is as follows.

First, since the effect of using a plurality of terminals using a single computer terminal increases the efficiency of work processing. For example, in case of using a conventional general terminal (3270 terminal in the case of IBM array), the multi-session function could bring the effect of using up to five terminals, but in the case of using the present invention, up to 40 terminals (8 * 5 = 40) The effect of using is brought.

Second, even if different ports are given different roles, they can all be handled by one terminal.

For example, two connection methods of a computer terminal (3270 terminal in the case of IBM), a control unit terminal (CUT) method and a distributed funtion terminal (DFT) method, may be simultaneously implemented in one terminal example.

Claims (1)

In the computer terminal connected via the COAX communication port (b) that can be connected to the port expansion device 20 to the terminal control device 10 connected to the host computer; It is connected to the terminal control apparatus 10 through the COAX communication port and the communication control means 310 for recognizing and distinguishing the port number of a plurality of communication data, connected to the communication control means 310 and a plurality of independent communication buffers ( 321 to 328, which is connected to the communication buffer means 320, the communication buffer means 320 for storing data independently for each port, and periodically withdraws the data stored in each communication buffer (321 to 328) A screen buffer means 340 connected to the central processing means 330 and the central processing means 330 and configured of a plurality of independent screen buffers 341 to 348 for storing the processed data in the corresponding screen buffer. A computer terminal having a multi-port function, characterized in that one computer terminal performs multi-processing for each port.

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