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The computer is a dedicated device designed for the purpose of serving the needs of human beings. It can solve the problem of human shortcomings and in particular it can solve the problems of logic and mathematical terms ... etc. So there are different types of computer systems such as personal computers, workstations, mini-computers, mainframes and supercomputers.
Personal Computers: We can understand it as a kind of universal computer variable cost relatively aims to serve the needs of the user and it is designed to kill the individual user.
the client (client): A computer for personal use but more powerful configurations, run faster, and are more likely than a common personal computer. Workstations demand mainly for business use or a professional (rather than the needs for family or recreation). It is designed and configured for engineering applications (CAD / CAM), software developers, architects, graphic designers, ... or anyone who needs moderate computing power, large RAM memory capacity, and the ability to relatively high-end graphics.
the operating system is often used for Unix workstations and Windows NT.
the client is a computer used only to meet the demands of work, school act of playing the man that every client depending on intended use shall be equipped with its own features and programs.
minicomputer: a medium-sized computers, typically larger size PC. It can perform the full-sized computer dungma application implementation. It is capable of supporting tens to hundreds of workers. Minicomputer are widely used in real time applications, for example in aviation controls, in automated manufacturing.
Mainframe: A full-sized computers, capable of supporting hundreds to thousands of users. Commonly used in the mode of arranging large batches (Large-Batch-Job) or processing of transactions (Transaction Processing), for example, in the bank.
Supercomputers: These supercomputers, specially designed to reach speeds perform floating point calculations may be highest. They often have parallel architecture, only works effectively in a number of areas.
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