are there any advantages for CRC when compared with 2 dimentional parity?

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are there any advantage for CRC when compared with 2 dimensional parity?

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mich On BEST ANSWER

with CRC, you can detect "burst" errors, that is any sequence of errors. CRC uses fewer bits. with CRC you can correct one bit errors.

2 dim parity you can detect 1, 2 and 3 bit errors and sometimes 4 bit errors 4 bit errors that are not detected are ones on 4 corners (forming a rectangle)