1# Hardware 2# User 3# Software 4#Data
All touch able part of computer is called hardware.
System Hardware of four types namely
i) CPU ii) I/O devices iii) Memory iv) Storage
(Central Processing unit )
CPU consist of two main parts CU ( control unite) and ALU ( Arithmetic Logic Unit )
CU: (Control unit)
CU directs and coordinates most of the operation in computer. It performs functions by giving command to respective unit of the computer.
ALU: (Arithmetic logic unit)
ALU handle all Arithmetic Comparison (i.e mathematical operation Addition subtraction as well as logical operations) etc
Hours work <40