10 Apr
2021
10 Apr
'21
5:41 p.m.
On Sat, Apr 10, 2021 at 11:12:51AM -0400, Clem Cole wrote:
On Fri, Apr 9, 2021 at 11:34 PM Ed Bradford
<egbegb2(a)gmail.com> wrote:
It was around 1983 or so when I bought a CP/M system, I think an
Okidata. It was a weird, but fun, machine, had a printer built
into the base behind the keyboard, dual 5" floppies, 128K less
the bitmapped color display. $2000.
It was slow but dramatically faster than 1/32-164th of a 1MB VAX 780.
Why did a Ph.D., an academic, and a computer
scientist not know about UNIX
in 1974 or so? 1976? In 1976, some (many?) universities had source code.
4.) Fifth and Sixth Edition of Unix was $150 for university but to run it,
it took a larger at least 11/40 or 45, with a minimum of 64Kbytes to boot
and really need the full 256Kbytes to run acceptably and the cost of a 2.5M
byte RK05 disk was much greater per byte than tape -- thus the base system
it took to run it was at least $60K (in 1975 dollars) and typically cost
about two to four times that in practice. Remember the cost of
acquisition of the HW dominated many (most) choices.