CPU Full Form | What is the Full Form of CPU

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Central Processing Unit

CPU stands for Central Processing Unit.
It's also referred to as a brain of the computer.
It carries out instructions and computer programs and performs all the basic arithmetical and logical operations.
CPU is installed within the motherboard on a selected area called CPU socket.
Traditionally the term CPU refers to a processor which includes control unit and arithmetical logical unit. Central Processing Unit (CPU) = Arithmetical Logical Unit (ALU) + Control Unit (CU)

Cpu Accumulator

Components of CPUs

Arithmetical Logic Unit :
- This is often a key part of the CPU. This is often responsible of performing all the logical and arithmetical operations.
Control Unit :
- It's the most important a part of the CPU. It instructs the entire computing system to hold out a particular task.
Registers :
- Registers are the special type of memory devices. They store the data that need to be processed and already processed by the processor.

This unit can store instructions, data, and intermediate results.
This unit supplies information to other units of the pc when needed.
It's also referred to as internal storage unit or the most memory or the first storage or Random Access Memory ( RAM ).
Its size affects speed, power, and capability.
Primary memory and secondary memory are two sorts of memories within the computer.
Functions of the memory unit are −

It stores all the data and therefore the instructions required for processing.
It stores intermediate results of processing.
It stores the final results of processing before these results are released to an output device.
All inputs and outputs are transmitted through the most memory.

The term CPU was first used in computer industry within the early 1960's.
Initially the term CPU was used to define a device for software execution and it came with the advent of the stored program computer.
A number of the important events related to history of CPU are as follows:

Silicon, the essential component of processors, was discovered by Baron Jons Jackob in 1823.
In 1903, Tesla patented the electrical logic circuits (gates or switches).
In 1947, The first transistor was invented by John Barden, Walter Brattain and Shockley at the Bell Laboratories.
In 1958, Robert Noyce and Jack Kilby developed the first microcircuit.
On 15 November 1971, Intel introduced the first microprocessor, the Intel 4004.
In March 1991, AMD introduced the AM386 microprocessor family.
On 22 March 1993, Intel released the Pentium processor, a 60 mhz processor with 3.1 million transistors.
On 4 January 2000, Intel released the Celeron 553 mhz bus processor.
On 22 April 2006, Intel released the Core 2 Duo processor E6320.
In November 2008, Intel released the first Core i7 Desktop processors.
In January 2010, Intel released the first Core i5 Mobile processors (i5-430M and i5-520E).