Old main-frames & data multiplexors....

From: Arfon Gryffydd <arfonrg_at_texas.net>
Date: Wed Sep 29 13:55:00 1999

I have come into a Teleplex box that IIRC, is used to allow time sharing
onto a main-frame by several terminals... I never quite understood how
this worked.
I mean, how did the main-frame know to suspend the current operation and
resume a previous with the use of these old multiplexors.

FOND MEMORY: I remember that back in 1982, my TRS-80 Model II had a
multiplexor option available to allow it to have multiple users.

What can I use this thing for?

A
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Received on Wed Sep 29 1999 - 13:55:00 BST

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