DocumentCode
1109136
Title
Increasing Digital Computer Efficiency with the Aid of Error-Correcting Analog Subroutines
Author
Karplus, Walter J. ; Russell, Richard A.
Author_Institution
IEEE
Issue
8
fYear
1971
Firstpage
831
Lastpage
837
Abstract
A network of passive electrical resistors is connected in a closed loop with a digital computer. This network functions as a parallel-operating subroutine to greatly accelerate the digital computer solution of certain classes of numerical problems. Computer systems employing the analog subroutine concept are "digital-computer-oriented" hybrid computers. Problems are programmed for conventional digital computation, and the digital computer flow chart is analyzed to determine if some particularly time-consuming blocks could be better handled by analog rather than digital techniques. A simple special-purpose analog unit is then constructed for this computational task.
Keywords
Algebraic equations, analog subroutine, hybrid computation, parallel computing, partial differential equations.; Algorithms; Analog computers; Computer errors; Computer networks; Concurrent computing; Difference equations; Differential algebraic equations; Flowcharts; Hardware; Partial differential equations; Algebraic equations, analog subroutine, hybrid computation, parallel computing, partial differential equations.;
fLanguage
English
Journal_Title
Computers, IEEE Transactions on
Publisher
ieee
ISSN
0018-9340
Type
jour
DOI
10.1109/T-C.1971.223357
Filename
1671950
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