03. Generations of Computer History

Generations of Computer History.
දෘඩාංග, පරිගණක

1. Generation of Computers
Generation
of
Computers
First
Generation
Second
Generation
Third
Generation
Fourth
Generation
Fifth
Generation
Basedonthecharacteristicsofvariouscomputersdevelopedfromtime
totime,theyarecategorizedasgenerationofcomputers.

2. First Generation Computers
TimePeriod:1951to1959 Technology:VacuumTubes
Size :VeryLargeSystem Processing:VerySlow
Characterized By:-
Magnetic Drums
•Magnetic Tapes
•Difficult to program
•Used machine
language & assembly
language
First Generation Computers

3. Second Generation Computers
TimePeriod:1959to1963 Technology:Transistors
Size :Smaller Processing:Faster
Characterized By:-
•Magnetic Cores
•Magnetic Disk
•Used high level
language
•Easier to program
Second Generation Computers

4. Third Generation Computers
TimePeriod :1963to1975
Technology :ICs(IntegratedCircuits)
Incorporated many transistors & electronic
circuits on a single chip
Size : Small as compared to 2nd generation computers
Processing :Fasterthen2ndgenerationcomputers
Characterized by:-
•Minicomputers accessible by
multiple users from remote
terminals.
IC (Integrated Circuit)

5. Fourth Generation Computers
TimePeriod :1975toToday
Technology :VLSI(VeryLargeScaleIntegration)
Incorporatedmanymillionsoftransistors&
electroniccircuitsonasinglechip
Size :Smallascomparedtofirstgenerationcomputer
Processing :Fasterthenfirstgenerationcomputer
Characterized by:
Thepersonalcomputeranduser
friendlymicro-programs,very
fastprocessorchiphighlevel
language,OOP(ObjectOriented
Programming)
VLSI (Very Large Scale Integration)

6. Fifth Generation Computers
TimePeriod :FutureTechnology
Technology :AI(ArtificialIntelligence)
Fifth Generation Computer
AI (Artificial Intelligence)

7. .