how fast were drum memories?

ben bfranchuk at
Thu May 10 14:53:12 CDT 2018

On 5/10/2018 9:15 AM, Jack Harper via cctalk wrote:
> The Univac FASTRAND *was* slow.
> You could stand there watching through the window on the side of the 
> 5,000-pound beast and actually see the enormous drum rotating as it 
> lumbered along at, what, 14 RPS I think.
> Regards to the List -
> Jack
Can not be slower than modern computers, It takes 5 minutes for my mail
program to load under windows and grab new mail.
Once core memory became common, fast speeds are relative to other I/O
at the time, of TTY and punch card speeds.

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