its give instruction fot arithmatic function like that sub,add,mul,and ,or
ALU-Arithmetic and logic unit.
Arithmetic logic unit
Two typical components of a CPU are: The arithmetic logic unit (ALU), which performs arithmetic and logical operations. The control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary.
The unit that performs the arithmetic and logical operations within the processor is called the Arithmetic Logic Unit (ALU).
The Arithmetic Logic Unit as suggested by the name carries out the arithmetic calculations of the computer.
An arithmetic function is any function which is defined for all positive integers, and has values which are either real or complex.
The Arithmetic and Logarithmic Unit of the CPU.
The function of the Arithmetic Logic Unit is to perform the arithmetic operations and boolean logic operations needed during instruction execution.Some Arithmetic Logic Units also provide temporary storage for operands and/or results of these operations in registers or accumulators, others do not provide any temporary storage (depending on the computer's architecture and/or implementation).
Control Unit and Arithmetic unit
CPU (Central processing unit)
The arithmetic and logic unit (ALU) within the computer's central processing unit (CPU) carries out arithmetic operations. Some designs also support a dedicated floating-point processing unit (FPU), which carries out arithmetic, trigonometric and logic operations based on floating-point variable types.
ARITHMETIC AND LOGICAL UNIT Anand bhat(mca@kiit-870024)