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The Von Neumann Machine
Member rating: No Rating | Words: | Submitted: Sat Aug 30 2003
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Von Neumann Architecture The Von Neumann Machine All modern computers are based on the ideas proposed separately by John von Neuman and Alan Turing in 1945. They suggested the stored-program concept. The proposal was that the program instructions that are to executed and the data that are to be processed should both be stored in memory together. This implies that a program must be in memory before it can be executed. Computers based on this design are known as von Neumann machines. A von Neumann machine performs what is known as the fetch/execute cycle. Internal components of a computer system are: Ø Processor - the part of the computer system that executes the programs Ø Memory - high-speed storage for programs and data Ø Interfaces - to connect external devices (called peripherals) Ø Clock - to provide timing signals Ø Buses - to connect together all the above into a...
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