computer

congeniality of computer

computer is laboring equipments below on file program control which automatically accept, saving and process data yielding information.

computer classification

pursuant to processed by data type

- computer digital

- computer analog

- computer of hibrid

pursuant to its usefulness

- special purpose computer

- general purpose computer

pursuant to ability

- special purpose computer

- general purpose computer

pursuant to computer physical size measure.

- mini computer

- micro computer

characteristic computer

first generation ( 1945 - 1959)

- using vacuous tube

- amount of vacuous tube which used ± 18.000 vacuous tube

- vacuous tube weight ± 30 ton

- releasing many hot.

- speed still lower.

- depository of data still is limited.

for example

- MARK of I ( first computer)

- LEO ( first commercial computer which made [by] [in] English)

- UNIVAC I ( first commercial computer which sold to ACE census bureau)

- ENIAC

- EDVAC

- EDSAC.

second generation ( 1959 - 1965)

- using transistor.

- physically smaller and compared to light [of] first generation

- usage of ever greater memory.

- quicker process.

- put into use online data proccesing.

- put into use disk stroge.

computer factory which producing second generation computer

IBM 1400, 7070-7090, IBM 1600, NCR 304, RCA 501, UNIVAC III, UNIVAC 1107, etc.

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