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CRC
Last modified: Thursday, August 14, 2003 

Short for cyclic redundancy check, a common technique for detecting data transmission errors. Transmitted messages are divided into predetermined lengths that are divided by a fixed divisor. According to the calculation, the remainder number is appended onto and sent with the message. When the message is received, the computer recalculates the remainder and compares it to the transmitted remainder. If the numbers do not match, an error is detected.

A number of file transfer protocols, including Zmodem, use CRC in addition to checksum.

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For internet.com pages about CRC . Also check out the following links!

Related Links

32 bit Cyclic Redundancy Check Source Code for C++
Copy and paste this simplified source code into your project if you need to generate CRC-32 error detection

CRC Demonstration
A CRC polynomials tutorial.

Cyclic Redundancy Check (CRC) technique
Explains how the CRC algorithm works and how to implement it in hardware and software.

related categories

Error Correction

Networks

related terms

checksum

communications protocol

error detection

Zmodem


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