On 9/29/26 12:36, Paul Koning via cctalk wrote:
On Sep 29, 2026, at 1:22 PM, ben via cctalk <[email protected]> wrote:
... Like what machines other than IBM had binary and decimal computing?
That depends. One answer is "all of them" -- because any general purpose
computer can do both.
If you meant "had machine instructions both for decimal and for binary
arithmetic", the answer includes the PDP-11 and VAX, and I think the Intel 4004 had
instructions used as building blocks in decimal arithmetic.
Anything with the bit slice 2901 or 2903 chips from AMD had
the capability to do hardware binary and packed decimal
operations. Of course, the microcode would need to have
implemented those.
Jon
