In a message dated 01/17/2000 10:22:35 PM Eastern Standard Time,
[log in to unmask] writes:

<< Hi,

 Can anyone explain me what is ecc RAM. Is it a parity bit ?
 thank you >>

Hi,
  ECC stands for Error Checking and Correcting, it is similar to simple
parity, but better.
  With parity RAM, you have 8 bits of data and a ninth parity bit, used to
check for single bit errors (via odd/even checksum total). This can detect,
but cannot correct an error.
  With ECC, you combine 8 bytes to get 64 bits of data, and 8 "parity" bits.
With this many check bits (and using a special code), you can check for
single or multi-bit errors, and can correct single bit errors.

HTH,
Peter Hogan
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