There is one in the 3830 control unit as well. This large box
controlled the DASDs (disks) on early S/370s. I have one, and it still
works.
--
Will
On Mon, Jun 8, 2026 at 8:41 PM steven(a)malikoff.com steven--- via
cctalk <cctalk(a)classiccmp.org> wrote:
On 06/09/2026 9:30 AM AEST Murray McCullough via
cctalk <cctalk(a)classiccmp.org> wrote:
54 years ago the 8 inch floppy came into existence. It can be said it
helped to make micr-computing possible.
Happy computing.
Murray 🙂
The IBM System 370/145 announced September 1970 and shipping June 1971 had a 23FD drive
for microcode loading, IIR it was on the front panel at the top left or maybe in the CE
area inside on the side, not sure exactly now. When I was doing work experience at IBM at
the end of high school there was a Model 145 in a warehouse waiting to be scrapped and I
recall looking at the 23FD in it then.