An error-checking scheme in data communications.When a packet of data is sent,the total of the ASCII character numbers represented by the data is sent along also.At the receiving end,the ASCII characters are totaled,and that sum is compared to the checksum.If they dont agree,theres been an error in transmission.
CHECKSUM
Meaning of CHECKSUM in English
Internet terms and acronyms English vocab. Английский словарь Интернет терминов и сокращений. 2012