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Essay

FIRST COMPUTERS AND OS

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Issue:

Technology

 

Written by:

Robert C

 

Date added:

April 24, 2014

 

Level:

University

 

Grade:

B

 

No of pages / words:

2 / 293

 

Was viewed:

5322 times

 

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Essay content:

It had an 18-bit word and had 4K words as standard main memory. The magnetic core memory's cycle time was 5 microseconds 1961 the ibm 7030 had a cost of 13.5 million it was the fastes computer in the world from 1961 until 1964. 1964 cdc 6600 by seymour cray with a speed of 9 megaflops was consider fist successful supercomputer 1970 unix was devolop by dennis ritchie and kenneth thomsom...
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baby machine 1950 harry huskey desing the SWAC that used 2300 vacuum tubes it had 256 word of memory each word being 37 bits its operations was add, subtract, multiply, comparasion, data extraction, input and output. 1952 illiac build with 2800 vacuum tubes and weighed about 5 tons. had a 5k main memmory and 64 k drum memory...
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