Why is CRC more successful in picking up errors than a parity check or a checksum?
CRC resembles a long division operation in which the quotient is discarded and the remainder becomes the result. Because a division method is used, rather than simply counting the number of bits, a higher rate of error detection is achieved. • Discuss the following statement, “Networks would be entirely unworkable without a method to check for errors.” The extent to which networks are free from errors defines their success and usability. Without reliable error checking methods an unacceptable rate of errors could make networks unusable. A discussion which outlines the importance of error checking methods in networks is required. • Discuss the following “Every form of information system is dependent on some reliable form of error checking, without them they would collapse in a bundle.” An example of a non computer information system could be used to answer this question. For example, without a way of ensuring that paper based letters reach their intended destinations, our postal system
