computer

Saturday, February 5, 2011

micro processor

                                                               Microprocessor
A microprocessor is an integrated circuit that executes instructions and carries out arithmetic and logical operation. so, it is known as the brain of the computer. it  is formed on a single chip. a circuitry of microprocessor contains millions of tiny electronic components. The capability of  a micro processor increases as the number of electronic components in the microprocessor increases. more electronic components deposited in a single chip means more number of instruction set in it. The instruction set of a micro processor contains all the command or instructions that it can  understand and work on.
The first microprocessor 'Intel4004'  which was developed by  Mercian Ted Hoff  of Intel Corporation in 1971AD contained 2300 transistors on it. the Intel 4004 could execute only a few instructions and manipulate only tiny amount of data at a time. the new Pentium microprocessor contains more than 3.3 millions transistors on it. the speed of a computer depends mainly upon its microprocessor. 

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