Some basic terms of Computer

HARDWARE
All the physical part of the computer is called hardware. Example: keyboard, mouse, CPU, monitor etc. so input, output, storage and processing devices are all hardware of the computer. A physical component may be electronic, electrical, mechanical or optical.

SOFTWARE
The programs and instructions sets that operate the computer are called software or computer programs are collectively known as software. The main objective of software is to enhance the performance capability of hardware. There are two types of software designed to do different tasks they are: application and system software. E.g. oracle, word, LINUX etc

CPU (central processing unit):
CPU is the brain of a computer. Its primary function is to execute programs. Besides executing programs, the CPU controls the operation of all other components such as memory, input and output devices. Under its control, programs and data are stored in the memory and display on the CRT/LCD screen or printed on printer.

OS (Operating system):
The interaction between hardware and software which is managed by a program is called operating system. Example: DOS, LINUX, UNIX etc. it is allows user to format disk, print, copy, delete, control input/output operation etc.

5 PROGRAM
Programs are the collection of many commands together in sequence and in logical way. A program is written for specific purpose.