контро́льна су́ма(A procedure used in checking for errors in data transmission. CRC error checking uses a complex calculation to generate a number based on the data transmitted. The sending device performs the calculation before transmission and includes it in the packet that it sends to the receiving device. The receiving device repeats the same calculation after transmission. If both devices obtain the same result, it is assumed that the transmission was error free. The procedure is known as a redundancy check because each transmission includes not only data but extra (redundant) error-checking values. Communications protocols such as XMODEM and Kermit use cyclical redundancy checking)
циклічний надлишковий контрольний код(метод виявлення помилок, при якому передавач обчислення по певному алгоритму над вмістом блоку даних, який передається і додає отриманий результат до блоку, а приймач – аналогічні обчислення над даними, що приймаються. Якщо прийняте і обчислене значення CRC не співпадають, то одержувач посилає відправникові запит на повтор передачі даних.)
Cyclic Redundancy Check(A procedure used in checking for errors in data transmission. CRC error checking uses a complex calculation to generate a number based on the data transmitted. The sending device performs the calculation before transmission and includes it in the packet that it sends to the receiving device. The receiving device repeats the same calculation after transmission. If both devices obtain the same result, it is assumed that the transmission was error free. The procedure is known as a redundancy check because each transmission includes not only data but extra (redundant) error-checking values. Communications protocols such as XMODEM and Kermit use cyclical redundancy checking)
