The document discusses the five generations of computers from the first to fifth generation. The first generation used vacuum tubes and punched cards for storage. The second generation introduced transistors and magnetic core memory. The third generation brought integrated circuits and time sharing operating systems. The fourth generation featured microprocessors, PCs, GUIs, and UNIX. The fifth generation includes notebook computers, the internet, web technologies, and internet-based applications.

1. Generation of Computers
 Introduction to Computer
 Computer Generations

2. Introduction to Computer
Historyof Computer
Functions of Computer
Characteristics of Computer

3. Computer Generations
o Meaning of Generations
o Classifications:
-- First Generation
-- Second Generation
-- Third Generation
-- Fourth Generation
-- Fifth Generation

4. First Generation
Generation period (1942-1955)
Key Hardware Technologies:
-- Vacuum tubes
-- Punched card secondary storage
Key Software Technologies:
-- Machine and assembly language
-- Stored program concept
Key Characteristics
Some Representative Systems:
-- ENIAC,EDVAC,EDSAC,UNIVAC

5. Second Generation
 Generation period (1955-1964)
 Key Hardware Technologies:
-- Transistors
-- Magnetic core memory
 Key Software Technologies:
-- Batch operating System
 Key Characteristics
 Some Representative Systems:
-- IBM-7030,UNIVAC LARC

6. T hir d Generation
 Generation period (1964-1975)
 Key Hardware Technologies:
-- IC
-- Microcomputers
 Key Software Technologies:
-- Time sharing
-- Operating system
 Key Characteristics
 Some Representative Systems:
-- PDP-2,PDP-8

7. Fourth Generation
 Generation period (1975-1984)
 Key Hardware Technologies:
-- Microprocessor
-- Semiconductor
 Key Software Technologies:
-- PC
-- GUI
-- UNIX
 Key Characteristics
 Some Representative Systems:
-- Apple-2,TRS-80,CRAY-1,CRAY-2,CRAY-X/MP

8. Fifth Generation
 Generation period (1984-Present)
 Key Hardware Technologies:
-- Notebook computers
-- Internet
 Key Software Technologies:
-- WWW
-- Internet based application
 Key Characteristics
 Some Representative Systems:
-- Pentium PCs,PARAM-10000