A microprocessor also called the CPU is the heart of the computer system or any computing device. It is a semiconductor chip which can be programmed to do various functions. It executes the instruction and provides the resultant output. Some of the example of microprocessor include 8085, 8086, Pentium, i3, i5 etc. The first microprocessor was the Intel 4004, introduced in 1971.
A microprocessor or CPU consists of a control unit and an arithmetic and logical unit (ALU). It is responsible for all the computational, arithmetic, logical and data processing task performed by the computer. Every microprocessor has a fixed set of instruction for its operation.
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