An
error correcting code or
ECC is used in computer data
storage, for example in
dynamic RAM[?], and in
data transmission. The standard implementation can correct single-bit errors (
single error correction[?] or
SEC) and detect double-bit errors (
double error detection[?] or
DED[?]).
Multibit failure detection or correction methods exist, for example Chipkill[?] Correct.
http://www.dell.com/us/en/gen/topics/vectors_2000-chipkill.htm