Basic Knowledge about Software

What is Computer ?
  → Computer is an electronic device that takes input, process it and gives output.

What is 0 and 1 ?
  → There is nothing like 0 and 1 in computer.There is no physical significance of 0 and 1
  → Any information can be encoded as a sequence of 0 and 1.

How 0 and 1 get stored in memory ?

What is Hardware ?
 → Hardware is a comprehensive term for all of the physical parts of a computer, as distinguished from the data it contains or operates on, and the software that provides instruction for the hardware to accomplish tasks
    Hardware is anything which is tangible.

What is a File ?
   File is a data bundle.

What is software ?
  Application Software
  System Software

Program and Process
    Set of instruction is called Program
    Active state of a program is called Process

Operating System
   It is a system software
   Examples are DOS, windows xp, windows vista, windows 7 windows 8, Solaris, Macintosh, Linux, ubuntu etc.
It provides interface between user and machine.
Acts as a manger of the computer system
It does process management, memory management, file management.

Execution of Program

Software develop in C language