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• MD ABID HASAN• ESRAT JAHAN SHISHIR• SADIA MAHMUD • TARIKUR RAHMAN• TAHIA TASNIM
Group MembersGroup Name : E
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3HISTORY AND GENERATION OF COMPUTER
Topic
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Chinese Abacus in the History of Computer
It marks the first step to the Computer generation.
Abacus was used in 300 B.C.
A very old abacus
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Napier's Bone (1617)
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Pascaline (1642)
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Pascaline (1642)
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Leibniz machine (1694)
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Jacquard's loom (1801)
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Difference engine and Analytical Engine (1823)
A part of Difference Engine
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Difference Engine
A difference engine is an automatic mechanical calculator designed to tabulate polynomial functions.
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Data processing machine (1890)
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Mark 1 (1937)
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First Generation (1940-1954)
Time period : 1940-1954 Technology : Vacuum Tube based Computer / Used Vacuum tubes
for circuitry and magnetic drums for memory Cost : Very Expensive Size : Bigger in size Input / Output : Punch Card
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Vacuum tube technology
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Some computers of this generation were:
Some computers of this generation were:ENIACEDVACUNIVACIBM-701IBM-650
ENIAC programmers
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17Second Generation (1959-1965)
The period of second generation
Use of transistors
Very costly
Supported machine and assembly languages
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Transistor
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19Some computers of this generation were
IBM 1620IBM 7094CDC 1604CDC 3600UNIVAC 1108
IBM 1620
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Third Generation (1965-1971)
IC used
Smaller size
Still costly
Supported high-level language
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IC -Integrated circuit
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Some computers of this generation were
IBM-360 seriesHoneywell-6000 seriesPDP(Personal Data Processor)IBM-370/168TDC-316
Honeywell-6000 series
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Fourth Generation (1971-1980)
The period of fourth generation was 1971-1980
VLSI technology used
Very small size
No A.C. needed
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Microprocessor
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Some computers of this generation were
DEC 10STAR 1000PDP 11CRAY-1(Super Computer)CRAY-X-MP(Super Computer)
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Fifth Generation (1980-till date)
ULSI technology
Artificial intelligence
Availability of very powerful
Voice recognition Natural language
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ULSI technology
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Artificial intelligence
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Some computer types of this generation are
DesktopLaptopNotebookUltra BookChrome Book
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Summary
Generation in computer terminology is a change in technology a computer is/was being used. Initially, the generation term was used to distinguish between varying hardware technologies. But nowadays, generation includes both hardware and software, which together make up an entire computer system.
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Reference
http://www.tutorialspoint.comhttps://en.wikipedia.orgwww.google.com
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Thank You
Any Question ?