ca l2 - history
TRANSCRIPT
A Brief History of Computers
First-Generation Computers
Used vacuum tubes for circuitry
Used magnetic drums for memory
Relied on machine language to perform operations
Input was based on punched cards and paper tape
Output was displayed on printouts
Were enormous
Used a great deal of electricity
Generated a lot of heat
were very expensive to operate
Could only solve one problem at a time
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Other Significant Events
1953: University of Manchester complete the first transistorised
computer.
1953: Magnetic core memory developed.
1954: FORTRAN (FORmula TRANslation) development began
1954: IBM 650 - the first mass-produced computer
1957: First dot matrix printer marketed by IBM
1958: Integrated Circuit invented by Jack Kilby at Texas Instruments
1959: COBOL (COmmon Business-Oriented Language)
development began
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Second-Generation Computers
Transistors replaced vacuum tubes
still generated a great deal of heat that subjected the computer
to damage
still relied on punched cards for input and printouts for output
moved from cryptic binary machine language to symbolic, or
assembly, languages
stored their instructions in their memory
multiprogramming operating system
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1959: DEC PDP-1
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1965 Moore's law published by Gordon Moore.
1965 Fuzzy Logic
1965 Packet switching, funded by ARPA was developed.
1965 The first supercomputer, the Control Data CDC 6600, was
developed
1966 HP-2115
1967 Development of programming language Pascal begun
1967 USA The floppy disk is invented at IBM
1968 USA Intel founded by Robert Noyce and a few friends.
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1968
“ But what ... is it good for? ”
—Engineer at the Advanced Computing Systems Division of IBM commenting on the microchip.
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End of Class!!
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