The document defines a computer as an electronic machine that can perform calculations, check spellings, play music and games. It explains that hardware refers to the physical parts of a computer while software refers to sets of instructions that tell the hardware how to perform tasks. The document outlines different types of software, including system software like operating systems, which control the overall working of the computer and manage both hardware and other software programs. It provides examples of application software used to perform specific tasks.

1. Computer
System

2. You will learn about:
1. Definition of a computer battery
2. Hardware & software
3. Examples of hardware & software
4. Types of software
5. Operating system
6. Difference between hardware &
software

3. Definition of computer
Computers are man – mad electronic
machines.
Computers are used to do many things
E.g. a) solve sums (+, -, x, /, % etc.)
b) check spellings
c) listen to music
d) draw pictures
e) play games etc.

4. IPO Cycle

5. Hardware & Software
Computer
Hardware Software

6. Hardware
 The physical parts of computer that you can
see and touch are called hardware

8. Software
 The set of instructions that tells the hardware how to
perform a particular task is called software.
 Unlike hardware we can not see or touch software.
Software
System Application

9. System Software

10. Application Software
 Software that is used to perform one
special kind of task is called application
software.
 For Example

11. Operating System
 The operating system controls the overall working of
the computer.
 It manages the hardware & the other software
programs.

12. Operating system
 Operating system works like system
manager