This document provides an overview of computers, including their meaning, functions, features, generations, types, and components. It defines a computer as an electronic device that takes in raw data as input, processes it according to stored instructions, and produces output. Computers are characterized by their high speed, accuracy, large storage capacity, diligence, and versatility. The document outlines the five generations of computers from vacuum tubes to modern devices incorporating artificial intelligence. It also describes various types of computers including supercomputers, mainframes, minis, and personal computers. Finally, it defines the basic software and hardware components that allow computers to function.

1. P . J . Chakrasali
{Mo}8748000623
Email :prajwalk.j.c@gmail.com

2. Contents of Computer
• Meaning of Computer
• Functions of Computer
• Features of Computer
• How to Computer Work?
• Generation of Computer
• Types of Computer
• Input Device
• Output Device

3. Computer is an advance
Electronic device. that takes
raw data as input from the
user & Process it under the
set of Instruction finally it
generates the output……….

4. Takes data as input
Stores data/Instructions in it’s
memory
Process the data
Generate the output
Controls all the above four steps

5. 
• High Speed
• Accuracy
• Storage Capacity
• Diligence
• Versatility
Features of Computer

6. C.P.U
Complier
memory
output
input
complier

7. First generation(1946-1955) Vacuum tubes

8. Second Generation (1955-1965) Transistors

9. Third Generation(1965-1975) Integrated Circuits

10. Fourth Generation (1975-Present) Micro Processor

11. Fifth Generation (Present-Beyond) Artificial,
Intelligence

12. Types of Computer
 Super Computer:--Most powerful Computer in terms
of performance Computer & data processing.

13. Main Frame Computer:-
 Main frame Computer is not
Powerful on Super Computer, but certainly they are
expressive.
 Ex- Business organization, Government, bank.

14. Mini Computer:-
 Mini Computer are used by small
business and Firm.
 Ex- Production department.

15. Personal Computer:-
 Personal Computer, Powerful micro
Processor.
 Ex- Desktop, laptop, Tablet & Smart Phones.

16.  Software:-Software is a set of programs/
Instruction which is designed to reform a well
designed function.
Mainly 2 types
 System Software
 Application Software
 Hardware:-Hardware means the physical &
Tangible component of Computer.
Ex:- Keyboard, mouse, Printer, CPU ect….