The Exxon 500s were dedicated word processing systems that ran a Z80 I
seem to remember. I think they could be multiplexed, several to one
printer, daisy wheel printers. 5 1/4 half height DDQD drives. Separate
monitor and keyboard. The pizza box had a dimple in the center for the
monitor. I think there was a CPM option.
I had several about 1990 and never found a use for one. The printers
were extremely heavy.
Paxton
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Paxton Hoag
Astoria, OR
USA