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checksum
checksum n.
Brit. 
/ˈtʃɛksʌm/
, /ˈtʃɛksʌm/U.S. /ˈtʃɛkˌsəm/
(also check sum) Computing, a sum calculated from the digits in a set of data and transmitted or stored with the data to provide a means of automatic checking for any subsequent corruption./ˈtʃɛkˌsəm/ΘΚΠ
society > computing and information technology > data > database > data entry > [noun] > error check
summation check1926
checksum1940
parity check1950
Hamming distance1954
redundancy check1955
sum check1956
validity check1957
1940 W. J. Eckert Punched Card Methods iii. 27 Check sums detect misplaced cards and errors of transposition.
1979 Personal Computer World Nov. 45/1 Rundle says that he was virtually forced to design a checksum cassette handling system because there was no other way of loading an 8K byte program.
1986 ZX Computing Monthly Oct. 52/3 The scope for errors when typing in the long lists of numbers is considerable, even with checksums.
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