This document discusses cyclic redundancy checks (CRCs), which are error-detecting codes used in digital networks and storage devices to detect accidental changes to raw data. It provides an example of a CRC code with C(7,4) and shows the process of division in a CRC encoder, demonstrating how CRC encoders and decoders work by dividing a data block with a generator polynomial to produce a checksum. The document was submitted to a lecturer at Daffodil International University by two students as part of a class assignment.

1. Cyclic Redundancy Check

2. Submitted to
Zerin Nasrin Tumpa
Lecturer
Department of CSE
Daffodil International University

3. Submitted by
01.Md.Raihan Haque
143-15-4557
02.Md Nazmul Hossain Mir
163-15-8386

4. Cyclic Redundancy Check
• A cyclic redundancy check (CRC) is
an error-detecting code commonly used
in digital networks and storage devices
to detect accidental changes to raw
data.

5. A CRC code with C(7,4)

6. CRC Encoder and Decoder:-

7. CRC Encoder and Decoder

8. Division in CRC encoder example

9. Division in CRC encoder example

11. Any Questions??