On 26 Feb 2009 at 19:40, Dennis Boone wrote:
The CDC
opersting sytems (NOS, SCOPE, KRONOS, etc.) used to punch
"banner" cards in column binary so I/O clerks could pair up decks with
other job output.
Probably didn't hurt that the PPU was a 12-bit machine...
Or the CPU word was 60 bits.
Many OS-es of the era could open the punch in column binary (or row
binary for some others) and punch whatever they wanted. CDC 6000
series object decks, were, IIRC, column binary.
Cheers,
Chuck