Computer Science is the study of computers and computational systems. Unlike electrical and computer engineers, computer scientists deal mostly with software and software systems; this includes their theory, design, development, and application.

1. Basic introduction of computer
Submitted by:- Riya Garg
Roll no. :- 2017590

2. Content
 Introduction
 History of computer
 Generations of computer
 Block diagram of computer
 Hardware
 Software

3. Introduction
 A computer is an electronic device
that manipulates information, or
data.
 It has the ability to store, retrieve,
and process data.
 Processed data obtain from
computer known as information.

4. History of computer
 In the early 1820s, it was designed by Charles
Babbage who is known as “Father of Modern
Computer”.
 It was a mechanical computer which could
perform simple calculations.
 It was a steam driven calculating machine
designed to solve tables of numbers like
logarithm tables.

5. Generations of computer
1. First generation (1946-1959)
2. Second generation(1959-1965)
3. Third generation
4. Fourth generation(1971-1980)
5. Fifth generation(1980-till now)

7. Advantages

8. Disadvantages

9. Block diagram of computer

10. Input unit

11. Output unit

12. Storage Device

13. Control unit

14. Arithmetic logical unit

15. Hardware
 Hardware is any part of your computer that has
a physical structure, such as the keyboard or
mouse.
 It also includes all of the computer’s internal
parts.

16. Software
 Software is any set of instructions that
tells the hardware what to do and how
to do it.
 Examples of software include web
browsers, games, and word
processors.

17. Hardware vs Software