FPGA VAX update, now DIY TTL computers

[Paul Koning]

>>>>> "Kevin" == Kevin Handy <kth at srv.net> writes:

 Kevin> Allison wrote:
 >> If you ask me the real horror of parity memory is it only tells
 >> you disaster
 >> happend just as your about to crash.  ...

 Kevin> Parity depends on if you would prefer a crash to silently
 Kevin> generating incorrect results.

 Kevin> ECC tries to hide the errors, but can still cause a crash if
 Kevin> too many bits change.

Correct.  And all error checking codes will fail to detect certain
errors.

Which is the right answer depends on what kind of errors you consider
likely enough to worry about, and what recovery you require.

       paul