13 Dec
2011
13 Dec
'11
9:26 p.m.
On 13 Dec 2011 at 21:42, allison wrote:
I saw v1.3 in 1975 down in Atlantic city (PCC). ISIS
was definately
later.
If so, not much later. Grab an ISIS-II floppy and take a look at
the boot track--(C) 1975... Intel. I wouldn't be surprised at all
to discover that ISIS and CP/M were being developed somewhat
simultaneously. I was definitely using both (according to my disk
collection) in 1976. ISIS for work and CP/M for home--and parallel
versions of the same program.
I definitely found ISIS more cumbersome to use than CP/M. EVERTYHING
was on disk with ISIS--even the DIR command. Because of the way disk
allocation works, fragmentation can become a real issue very quickly.
The command language was more clumsy-- COPY :F0: TO :F1: for ISIS,
but PIP B:=A: for CP/M.
--Chuck