Chuck Guzis wrote:
While the main store on the IBM 650, didn't most of the installed
base (eventually) also have 50 words of core as sort of a
"scratchpad" memory?
Indeed, according to
http://www.columbia.edu/acis/history/650.html there was
60 words of core used as a buffer between the drum and tape drives to account
for their different data rates, but which could also be used for other stuff.
I find the Columbia computing history pages a great combination of technical
overview and anecdotal stories, making them fun to read.