Are ECC and parity the same thing? If not what's the difference?
No. Although they both detect memory errors, ECC and parity are not exactly the same. Parity modules detect single-bit data errors. Error correcting code (ECC) modules detect and correct single-bit errors, and they detect and report double-bit errors.
FPM and EDO modules can be parity or non-parity. SDRAM and DDR modules can be ECC or non-parity (also called non-ECC).
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