info-cpm (12/03/82)
>From LIN@Mit-Mc Thu Dec 2 23:34:53 1982
To: info-cpm@BRL
Via: Mit-Mc; 3 Dec 82 1:13-EST
Via: Brl; 3 Dec 82 1:16-EST
Via: Brl-Bmd; 3 Dec 82 1:18-EST
1. assume i want to be running MP/M with a z-80B and a hard disk with two
users doing MINCE-type word processing and maybe a printer job in the
background. any comments on system degradation? will response time
be acceptable? or should i punt and go to a 16 bit multi-user system.
2. assume I want to run with one terminal, but demand
foreground/background capability. can i do this on an 8-bit
multi-user system? will MP/M let me do this? in principle, i want a
Concurrent CP/M 80 (by analogy to the 8086 version DR puts out), but i
don;t know of such a beast. failing this, it seems that what i should able to do it just start up as one user a foreground job, and then as another user a background; possible? help, please.
thanks.info-cpm (12/04/82)
>From FJW@Mit-Mc Sat Dec 4 00:06:52 1982
To: LIN@Mit-Mc
Cc: INFO-CPM@BRL
Via: Mit-Mc; 3 Dec 82 23:39-EST
Via: Brl; 3 Dec 82 23:47-EST
Via: Brl-Bmd; 4 Dec 82 0:05-EST
Concurrent CP/M-80 is entirely possible and feasible, although I can't
say that anyone has actually done it (yet). The principal is
relatively simple: take the example of a bank-switched,
interrupt-driven, multi-user system, add a small exec in the common
area, and turn it around so that you can select your current home bank
while the interrupts allow the processor to service any activities of
the other banks...
--Frank