Mike Headon wrote:
>Program status word?
>April 8th wil be the 60th anniversary of the IBM 360 announcement. It
>was going to be on the 1st until somebody realised that it might not be
>appropriate!
I recall loading some calculations(1) onto a 360 in Stafford, via
card input at GEC in Trafford Park, in the early 70s.
Rather than wait a day for the results to come back, we then
drove to Preston, where we could see them printed out on a
teletype, at roughly the speed of the football results. Don't
ask why this was.
The next time, a couple of years later, I had to do a similar
calculation, we used a Compucorp programmable calculator(2).
At the same time we had a technical document for each project
which was about 50 sheets of data, with items listed in a
particular sequence, which had to be frequently updated, with
pencil and eraser, and you could always guarantee that wherever
you had left spaces would not be where stuff needed inserting.
Our tame office nerd managed to write code that enabled us to
produce the document using the company 360, the data input for
each project being two full boxes of punch cards. The cards (a
pair for each item) had to be kept in the right order, so
dropping them wasn't ideal. We wrote the data and edits on coding
sheets, apart from bank holidays, when the punch staff were away,
and we could have a go ourselves.
At another company, which (following the move of an Engineering
Manager) used the same listing system, PCs had begun to appear,
and the Chief Engineer liked working in Fortran, which was
persuaded (a bit like dogs walking on two legs) to perform the
task.
In due course, I got it working, and much more user-friendly in
dBase. My biggest success was to produce the hierarchy trees
(mounted on/ contains) from the component data.
(1) Start resistor calculations for the Class 313 EMU. I still
have some hand plots of the resultant curves in the loft.
(2) I think this was it:
http://www.rskey.org/detail.asp?manufacturer=Compucorp&model=326+Scientist
Chris
--
Chris J Dixon Nottingham