A check digit is a number added to each character in a coded system which allows for the detection of errors; through the use of a mathematical formula, recording errors such as number reversals can be noted. See parity bit.
Attend a Conference
Experience Information Technology conferences
With exclusive insight from Gartner experts on the latest trends, sessions curated for your role and unmatched peer networking, Gartner conferences help you accelerate your priorities.
Gartner CIO & IT Executive Conference
São Paulo, Brazil