Computer Generations
- 1. “ Computer Generations “ Welcome To Our Presentation On 1
- 2. 2 Group Member’s Name Group Member’s ID 1. MD. Atikur Rahman ➡ 181-15-2024 2. MD. Soliman Hosen ➡ 181-15-1738 3. MD. Tanvir Ahmed ➡ 181-15-1939 4. Nafisha Tamanna Nice ➡ 181-15-1837 5. MD. Muftain Ahmed Joy ➡ 181-15-1849 Group Name : RAINBOW WARRIORS
- 3. Generation of Computers: Based on the characteristics of various computers developed from time to time, they are categorized as generation of computers. (1942-1955) (1955-1964) (1964-1975) (1975-1989) (1989-Present) 3
- 4. First Generation Computers: Time Period : 1942 to 1955 . Technology : Vacuum. Tubes Size : Very Large Processing : Very Slow Characterized By: Magnetic Drums • Magnetic Tapes • Difficult to program • Used machine language & assembly language 4
- 5. 5 • The main features of the first generation are − • Vacuum tube technology • Unreliable • Supported machine language only • Very costly • Generated a lot of heat • Slow input and output devices • Huge size • Need of AC • Non-portable • Consumed a lot of electricity • Some computers of this generation were − • ENIAC • EDVAC • UNIVAC • IBM-701 • IBM-650
- 6. Second Generation Computers: Time Period : 1955 to 1964 Technology : Transistors Size: : Smaller Processing : Faster than 1st generation computers Characterized By:- • Magnetic Cores • Magnetic Disk • Used high level language • Easier to program 6
- 7. 7 • The main features of second generation are − • Use of transistors • Reliable in comparison to first generation computers • Smaller size as compared to first generation computers • Generated less heat as compared to first generation computers • Consumed less electricity as compared to first generation computers • Faster than first generation computers • Still very costly • AC required • Supported machine and assembly languages • Some computers of this generation were − • IBM 1620 • IBM 7094 • CDC 1604 • CDC 3600 • UNIVAC 1108
- 8. Time Period: 1964 to 1975 Technology : ICs (Integrated Circuits) Incorporated many transistors & electronic circuits on a single chip Size : Small as compared to 2nd generation computers Processing : Faster then 2nd generation computers Third Generation Computers: Characterized by:- • Minicomputers accessible by multiple users from remote terminals. • IC (Integrated Circuit) 8
- 9. 9 • The main features of third generation are − • IC used • More reliable in comparison to previous two generations • Smaller size • Generated less heat • Faster • Lesser maintenance • Costly • AC required • Consumed lesser electricity • Supported high-level language • Some computers of this generation were − • IBM-360 series • Honeywell-6000 series • PDP (Personal Data Processor) • IBM-370/168 • TDC-316
- 10. Fourth Generation Computers: Time Period : 1975-1989 Technology : VLSI (Very Large Scale Integration) Incorporated many millions of transistors & electronic circuits on a single chip Size : Small as compared to first generation computer Processing : Faster than previous generation computers Characterized by: •The personal computer and user friendly •micro-programs, very fast processor chip •High level language, OOP (Object Oriented Programming) •VLSI (Very Large Scale Integration) 10
- 11. 11 • The main features of fourth generation are − • VLSI technology used • Very cheap • Portable and reliable • Use of PCs • Very small size • Pipeline processing • No AC required • Concept of internet was introduced • Great developments in the fields of networks • Computers became easily available • Some computers of this generation were − • DEC 10 • STAR 1000 • PDP 11 • CRAY-1(Super Computer) • CRAY-X-MP(Super Computer)
- 12. Fifth Generation Computers: Time Period : 1989 to Present Technology : ULSI, AI, Robotics, Neural Networks Development of expert systems to make decisions in real-life situations Natural language understanding Size :Small as compared to previous generation computers Processing : Faster than previous generation computers Characterized by: •Super large scale integrated chips. •Artificial intelligence. • Able to solve highly complex problem including decision making, logical reasoning. • Able to use more than one CPU for faster processing speed. • Intended to work with natural language. 12
- 13. 13 • The main features of fifth generation are − • ULSI technology • Development of true artificial intelligence • Development of Natural language processing • Advancement in Parallel Processing • Advancement in Superconductor technology • More user-friendly interfaces with multimedia features • Availability of very powerful and compact computers at cheaper rates • Some computer types of this generation are − • Desktop • Laptop • NoteBook • UltraBook • ChromeBook
- 14. CONCLUSION • As a result of the various improvements to the development of the computer we have seen the computer being used in all areas of life. It is a very useful tool that will continue to experience new development as time passes. 14
- 15. Thank you for being with us . 15