As the subject says, punched cards.  Except it was a '40'X on the 360.

On Nov 3, 2008, at 7:06 AM, erik quanstrom wrote:

This courtesy of the ACPI spec: ""RSD PTR " (Notice that this
signature must contain a trailing
blank character.)"

So where do we get the guys who design this stuff? Can we send them
back? Or put them in an infinite loop in a time machine (oh wait see
the subject).

i think it's a tradition at this point to use 0x20 and not 0x00 to
fill a fixed-with signature.  ata identify device uses 0x20 to fill
out fixed-width fields like the serial number.  i'd be interested
where this tradition popped up.  0 would make more sense.

- erik





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