The Communication System Of Two Computers In WINDOWS

With the development of science technology, the superiority of computers in processing information is becoming more and more obvious. And the world is smaller and smaller because of the wide and quick delivery of information.With modern information technology rapidly developed and computer network widely used, communication technology of computers has been mature with each passing day. As a flexible, convenient and reliable method of communication, serial communication is extensively used in industrial control. Using PC to keep watch on projects synchronously calls for the functions of collecting and processing data and controlling the emergency and transmission of signals in users' interfaces. At the same time, serial communication is also used in many other ways, such as transportation control, collecting system of distributive data, expanding the communication distance and so on.In data communication, computer network and distributive controlling system in industry, it usually needs serial communication to achieve the purpose of long-distance exchange of information. When there is a long distance between computers and data-controlling machine tools, serial communication is used instead of parallel communication. That's is because the cost of parallel communication system is high and so many wires easily cause disturbance and wire breakdown. So serial communication system is widely used in data-collecting and data-processing just because its low cost and fewer wires. Serial communication of controlling system uses RS-232, which is the most popular interface in computers and communication industry.According to some observation, analyses, demonstrations and consideration of different needs, we design a communication system of two computers which can fully represent the characters of serial communication, using the earliest interface—RS232. This system can be used in arduous circumstances or inconvenient circumstances without network wires. We put forward the serial communication system of two computers in WINDOWS, which is a typical communication system for the purpose of carrying out the work of rock-bottom and connecting users and system straight.After some analyses, the author exploits the system by using RS-232 as interface, criterion and Visual C++6.0 of Microsoft which provides many kinds of oriented objects as development tool, and makes the practicable system which contains the transmission and reception of data by adopting the top-down design method, modularized design thought, and carrying out feasibility study, demand analysis and overall design of coding and debug. Then the feasible system satisfied by users comes into being.The introduction is about the general rules of development, introducing the designing process of the communication system, serial communication system in WINDOWS 95 and the users' demands.The following is about the designing base of the serial communication system by two computers in WINDOWS 95 and the soft-ware Visual C++6.0.The next is about the analyses and design of the serial communication system and how to adjust and use the serial communication system.The last is a summary about the advantages and disadvantages of the system and prospects of interrelated knowledge.This system has a friendly users' interface and can run successfully in WINDOWS 95 and in Visual C++6.0 in WINDOWS 98.