Generations ofComputer

MEMBERSMITHUN RANA – 143-15-4320MESBAH HASAN – 143-15-4564SALAUDDIN ISLAM – 143-15-

4626SAIFUL ISLAM – 143-15-4411AFJAL HOSAIN – 143-15-4660

GENERATIONFIRST GENERATIONSECOND GENERATIONTHIRD GENERATIONFOURTH GENERATIONFIFTH GENERATION

FIRST GENERATION (1940-1956)

• VACUUM TUBES as CPU.• Huge in size, Costly, Need ot of Electricity, Creats

lot of HEAT, Need AC.• Only Machine code and electric wired board

languages used.

Some computer of this generation were:

• MARC-1.• UNIVAC-1.• EDVAC.• ENIAC.

SECOND GENERATION (1952-1964)

• TRANSISTORS.• Smaller and less needed of electricity than first

generation computers.• Lots of electricity, Needed AC.• Machine and Assembly language.

Some computer of this generation were:

• IBM – 1620• IBM – 7094• CDC – 1604• UNIVAC – 1108

THIRED GENERATION (1964-1972)

• IC (Integrated Circuits).• Smaller, Faster than before, but costly, and also

needed AC to cool it.• High Level Language (Fortran-2 to 4). COBOL,

Pascal; Algol - 68.

Some computer of this generation were:

• IBM-360 series • Honeywell-6000 series • PDP(Personal Data

Processor) • IBM-370/168 • TDC-316

FOURTH GENERATION (1972-1990)

• VLSI (Very Large Scale Integrated) circuits.• Cheap, portable, personal use, no AC needed,• Internet, OS (Operating System), Easy available.• Higher level languages like C and C++, DBASE

etc. were used in this generation.

Some computer of this generation were:

• DEC 10 • STAR 1000 • PDP 11 • CRAY-1(Super Computer) • CRAY-X-MP(Super

Computer)

FIFTH GENERATION (1990-NOW)

• ULSI (Ultra Large Scale Integration).• AI (Artificial Intelligence),• Parallel processing hardware.• Very vastly used like in the field of robotics and

many others.

Some computer of this generation were:

• Desktop • Laptop • NoteBook • UltraBook