Arithmetic And Logic Unit

What is Arithmetic And Logic Unit -ALU ?

The full form of ALU is arithmetic and Logic Unit.

ALU

Arithmetic And Logic Unit(ALU) contains the electronic circuitry that executes all arithmetic and logical operations. The arithmetic and logic unit can perform four kinds of arithmetic operations, or mathematical calculation: addition (+),subtraction (-),multiplication, and division,As its name implies
,the arithmetic and logic unit also perform logical operations(AND or NOT). a logical operation is usually a comparison .The unit can compare number ,letters,or special characters.The computer can then take action based on the result of the comparison.This is a very important capability.Logical operations can test the conditions such as equal-to,less-than,greater-then etc.It is by comparing that a computer is able to tell, for instance,where there are unfilled seats on airplanes,where change -card customers have exceeded their credit limits ,and whether one candidate for congress has more votes than another.

For example,=, >, <, >, etc.

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