Microprocessor

Microprocessor is a semiconductor device consisting of electronic login circuits manufactured by using either a large-scale integration (LSI) or very-large-scale integration (VLSI) technique.

Clock Speed
The Clock Speed is an elecronic pulse generator that sends out an electronic pulse at a regular interval of time. This electronic component of computer needs these electronic pulses in order to perform work.

Word Length
Word Length depends upon the width of the internal data bus, registers, ALU. The number of bits that can be processed by a processor in a single instruction is called word length or word size. The word length determines the amount of RAM that can be accessed and the total number of pins on the microprocessor.

Microprocessor can be divided into three segment:
1. Arithmetic and logic unit:
The CPU perform addition, subtraction, AND, OR and XOR operation and store the result in register or in memeory.

2. Register Unit:
The register store data temporarily during the execution of program.

3. Control Unit:
The control unit provide the timing and control signal to all the operations and control the flow of data.

Function of Microprocessor are:
• Decoding instructions.
• Responding to I/O generated control signals.
• Providing timing and control signals for all elements of the computer.
• Fetching instructions and data from memory.