翻訳と辞書
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・ search algorithm
・ search engine
・ search problem
・ search term
・ search the fucking web
・ search-and-destroy mode
・ sec
・ secc
・ secd machine
・ second generation
second generation computer
・ second generation language
・ second level cache
・ second normal form
・ second-order lambda-calculus
・ second-system effect
・ secondary cache
・ secondary damage
・ secondary key
・ secondary storage


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second generation computer : FOLDOC
second generation computer
A computer built from transistors, designed between the mid-1950s and mid-1960s.
Ferrite core memory and {magnetic drums} replaced cathode ray tube and {delay-line storage} for main memory. {Index registers} and floating-point arithmetic hardware became widespread. Machine-independent {high level programming languages} such as ALGOL, COBOL and Fortran were introduced to simplify programming.
{I/O processors} were introduced to supervise input-output operations independently of the CPU thus freeing the CPU from time-consuming housekeeping functions. The CPU would send the I/O processor an initial instruction to start operating and the I/O processor would then continue independently of the CPU. When completed, or in the event of an error, the I/O processor sent an interrupt to the CPU.
Batch processing became feasible with the improvement in I/O and storage technology in that a batch of jobs could be


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