Checksum,
Definition of Checksum:
Mathematical value computed from a group of data being transmitted, and transferred with the data. The receiving device compares the checksum with its own computation and, if it differs from the received checksum, requests the transmitting device to resend the data.
Meaning of Checksum & Checksum Definition
Checksum
The checksum is a value calculated from a data block that is used to detect errors in the data sent.