Disposable computer terminal

Abstract

The disposable computer terminal includes a main board, a control circuit including MPU, an input unit, a display, a personal information reader and a memory, which are connected to the control circuit, and terminal communication interface. When some key in the input unit is depressed, the control circuit enters personal information card reading mode, generates information containing personal information and transmits the information via the terminal communication interface to central computer for data exchange with the central computer after confirming the personal identity. The present invention has the beneficial effects of high safety owing to the united management with the central computer, low cost caused by installing all the software in the central computer, high stability and high facility.

Description

technical field [0001] The invention relates to the computer field, in particular to a disposable computer terminal. Background technique [0002] The evolution of computer systems such as Figure 1-Figure 7 shown in the block diagram. figure 1 Shown is a terminal and a large computer, and its disadvantage is that the loop speed is slow, and it takes 9 seconds to 2 seconds to transmit 2000 characters. figure 2 shown in figure 1 On the basis of the CPU, the CPU is added, and the picture control processing is moved to the terminal for processing, so the load on some loops is reduced. image 3 Shown is an open system turned into a client and server, with a high return line speed. Figure 4 shown in image 3 Based on the development of the network, the client has become a more powerful PC. Figure 5 shown in Figure 4 On the basis of the Internet, the network has been further expanded, and the Internet has appeared, but the Internet contains irresponsible and useless in...

AI Technical Summary

Problems solved by technology

figure 1 Shown is a terminal and a large computer, its disadvantage is: the speed of the line is slow, and it takes 9 seconds to 2 seconds to transmit 2000 characters

However, there are many useless information and viruses on the Internet, so the terminal is easily invaded by the outside world and infected with viruses

Poor security performance of the entire computer system

Secondly, each PC computer needs to install software, its operation and maintenance are troublesome, and the cost is high

If there is an error in the software of each PC computer, it will cause the operation of the entire system to stop

In addition, using a PC computer as a terminal is inconvenient to carry and cannot be operated when traveling or on a business trip.

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