RE: Operating system name

As a new IBM Systems Engineer in 1969, I was in an IBM 402 board-wiring class, when we were taken next door for the System/3 announcement. The rest of the class seemed kind of pointless.

I cut my teeth on the 8K System/3 Model 6 that Booth mentioned. Worked with a lot of customers who had that machine. At one of them I met a gentleman whose business had purchased one and he had gotten bitten by the programming bug.

His name was Booth Martin.

Bill Reed
Rock of Ages Corp.
Graniteville, VT  05654



-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Booth Martin
Sent: Tuesday, May 02, 2017 6:16 PM
To: Midrange Systems Technical Discussion
Subject: Re: Operating system name

SYS/3, MOD 6. No CRT. Keyboard, printer, 22"? cartridges held 250k?, OCL was important because all user input/output was through the keyboard/printer. Is it possible that the CPU memory was 5k, 3 of those k reserved for the system, all user programs ran in 2k, with overlays?


On 5/2/2017 4:49 PM, Joe Pluta wrote:

On 5/2/2017 1:52 PM, Jeff Young wrote:

+1 on S/3 CCP Model 15D

My first machine. 3741 diskette keypunch. 1403 band printer.
Removable disk packs. 5424 MFCU (which may or may not have stood for
"multi-function" depending on the day).

Bursting multi-part printouts and putting them into boxes.

Yeah, I'm old too. :)

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