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People had an idea of computers.
People had an idea of computers. -
Period: to
Early History
People started making calculations and for storing information.
They started the human computers.
Human computers were for making calculations and storing information.
They made too many errors.
People then wanted to create a machine that could create and store calculations with no errors. -
Start of First generation computers
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Period: to
First Generation of computers
Time = 1941-1956
Input and output memory storage=vacuum tubes and punch cards.
Main component= difference engine and vacuum tube.
UNIVAC and ENIAC.
Let out too much heat and was too big.
Could record and store information with no errors. -
ENIAC was anouced to the public
Was anounced to public, First computor made. -
Vacuum tubes made
Input,Output and storage device for first generation computers. -
Period: to
2 Generation of computers
1956-1963
IBM had created the source.
It had more space and used more hardwares.
Input and output memory storage = Transistors and punch cards.
It was upgraded and can now print.
Vacuum tubes were not used anymore.
The computer became smaller,faster and cheaper.
It had still let out a lot of heat. -
End of first generation computers.
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IMB 1620 anounced
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END OF 2 GENERATION
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Start of 3 generation
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Period: to
3 Generation
1964 - 1971
Had operating systems instead of punch cards and could store memory with applications.
Had a keyboard and monitor.
integrated circuits had created it.
Operating systems aloud the computer to open more than one applications and became much faster and cheaper.
It was easier to use.
still let out a lot of heat. -
space race
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IBM 360
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END OF 3 GENERATION
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Start of 4 generation
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Period: to
4 Generation
1971- 1980.
Input,output and memory base=Microprocessors.
APPLE and Microsoft are the main companies to buy it from.
Integrated circuits are broken down into a small chip.
People can now use it at home and can use internet with it and can use a mouse now.
was pricey and not everyone could get one.
It still lets out heat but not much. -
Apple made
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computers were aloud to be sold to public but was pricy
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Microsoft made
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End of forth generation
