processor :- A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions The CPU has two components: Control Unit: extracts instructions from memory and decodes and executes them Arithmetic Logic Unit (ALU): handles arithmetic and logical operations

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Content:-
 Definition cpu
 Component of cpu
 Function of cpu
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processor:-
 Cpu stand for central processing unit.
 Central processing unit is like the brain of the computer.
 The central processing unit (CPU) of a computer is a piece of
hardware that carries out the instructions of a computer program.
It performs the basic arithmetical, logical, and input/output
operations of a computer system.
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Component of cpu:-
 Control unit (CU).
 Arithmetic logic unit (ALU) .
 A number of register.
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Control unit:-
 The control unit (CU) is a component of a computer's central
processing unit(CPU) that directs the operation of the processor. It
tells the computer's memory, arithmetic/logic unit and input and
output devices how to respond to a program's instructions.
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Arithmetic logic unit:-
 Abbreviation of arithmetic logic unit, the part of a computer that performs all
arithmetic computations, such as addition and multiplication, and all
comparison and logical decisions.
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Register:-
 Processor register (CPU register) is one of a small set of data
holding places that are part of the computer processor.
A register may hold an instruction, a storage address, or any kind of
data (such as a bit sequence or individual characters). Some
instructions specify registers as part of the instruction.
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How cpu works?
 The cpu is centrally located on the motherboard. Since the cpu carries
out a large share of the work in the computer data pass continually
through it. The data come from the ram and the units(keyboard, drives
,etc) after processing the data is sent back to the ram and the units. The
cpu continually receives instructions to be executed. Each instruction
is a data processing order.
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Function of cpu:-
 For every instruction a processor repeats a set of four basic operations
which are given following:-
 Decoding
 Fetching
 Executing
 Storing
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Fetching:-
 Fetching is the process of obtaining a program or an application
instruction or data from memory
Decoding:-
 Decoding refers to the process of translating the instructions into
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Executing:-
 Execute calculation move data and jump to different addresses.
Storing:-
 CPU dive some data after executing the instruction and store data
being instructed.
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