Generation Of Computer

Computer Generation

1. THE GENERATION OF COMPUTER 1 PRESENTED BY : SUBHRADEEP MITRA M.C.A, B.SC COMPUTER SC(HONOURS) FROM CALCUTTA UNIVERSITY

2. Generations of Computer The computer has evolved from a large-sized simple calculating machine to a smaller but much more powerful machine. The evolution of computer to the current state is defined in terms of the generations of computer. Each generation of computer is designed based on a new technological development, resulting in better, cheaper and smaller computers that are more powerful, faster and efficient than their predecessors. 2

3. Generation of Computers 3 Based on the characteristics of various computers developed from time to time, they are categorized as generation of computers. Generation of Computers First G e nera tion Second G e nera tion Third G e nera tion Fourth G e nera tion Fifth G e nera tion

4. First Generation Computers 4 Time Period : 1951 to 1959 Size : Very Large System Technology : Vacuum Tubes Processing speed : Very Slow Characterized By: - Use Punch Card for input and output Use Magnetic Tapes for data store Difficult to program Used machine language to write program First Generation Computers

5. First Generation Computers A dvantages : It was only electronic device First device to hold memory Disadvantages : Too bulky i.e large in size Vacuum tubes burn frequently They were producing heat Maintenance problems 5

6. Second Generation Computers 6 Time Period : 1959 to 1963 Size : Smaller Technology : Transistors Processing : Faster Characterized By:- Magnetic Cores Magnetic Disk Used high level language Easier to program Second Generation Computers

7. Second Generation Computers Advantages : Size reduced considerably The very fast Very much reliable Disadvantages : They over heated quickly Maintenance problems 7

8. Third Generation Computers 8 Time Period Technology Size Proces si ng : 1963 to 1975 : ICs (Integrated Circuits) Incorporated many transistors & electronic circuits on a single chip : Small as compared to 2nd generation computers : Faster then 2nd generation computers Characterized by:- Minicomputers accessible by multiple users from remote terminals. IC (Integrated Circuit)

9. Third generation computers Advantages : ICs are very small in size Improved performance Production cost cheap Disadvantages : ICs are sophisticated 9

10. Fourth Generation Computers : 1975 to Today : VLSI (Very Large Scale Integration ) Incorporate d ma n y mil li ons of tra n s istor s& electronic circuits on a single chip : Small as compared to first generation computer : Faster then first generation computer 10 Time Period Technology Size Proces si ng speed Characterized by: The personal computer and user friendly micro-programs, very fast processor chip high level language, OO P ( Obje c t Orie n t ed Programming) VLSI (Very Large Scale Integration)

11. Fifth Generation Computers 11 Time Period Technology : Future Technology : AI (Artificial Intelligence) Fifth Generation Computer AI (Artificial Intelligence)

12. THANK YOU 12