27 Jan
2002
27 Jan
'02
8:50 a.m.
William Donzelli wrote:
All I have from that IBM stuff is the book 'Programing the IBM 1130'
by J.K. Hughes. What I do remember is that the logic sure used a lot
of one-shots and delay lines.
--
Ben Franchuk - Dawn * 12/24 bit cpu *
www.jetnet.ab.ca/users/bfranchuk/index.html
Once long ago I had a IBM-2310 Disk storage unit
( single drive ).
Nothing like 250+ LB floppy capacity drive running off of 240 VAC.
With a 500,000 16 bit word capacity per removable media many aps
never used a file sytem but just wrote directly to the disk.
2311, perhaps? A cool drive, in many aspects. It is a quite early design
(1965). I have one of these, but no media (anyone have one? I think it is
called a 2316), and it will remain quite braindead, as I do not have the
2841 control unit. The 2311 does almost nothing - very little electronics
in the box, other than the read/write amplifiers. Almost everything is
in the control unit, including the power supplies.
The coolest thing about 2311s is the method used to drive the heads - it
is hydraulic. These drives are full of oil lines, a little pump, and even
a little cup to catch the leaks.
Do you have any parts or information about this drive left? I would be
very interested, as I would like to get the thing at least spinning some day.
William Donzelli
aw288(a)osfn.org