I started on a 650, and that had a 2,000 word drum. The 305, before my time, had a 2400 character drum. I'm not aware of any IBM drum smaller than that.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 עַם יִשְׂרָאֵל חַי נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר ________________________________________ From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> on behalf of Leonard D Woren <ibm-main...@ldworen.net> Sent: Thursday, January 25, 2024 12:37 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: OT-ish: Very old IBM hardware & manuals available Maybe contact the Computer History Museum https://computerhistory.org/ . They probably have the resources to ship anything they're interested in. Their collection includes IBM hardware that predates any of us having seen a digital computer. It's been quite a while since I was there, but they were working on fixing up an IBM drum storage device which I think was the size of beer keg and held something like 550 bytes, no typo, or maybe it was a few kbytes. /Leonard Robert Prins wrote on 1/23/2024 7:57 AM: > Hi all, > > My father worked for IBM in the Netherlands for more than 30 years, > starting as a CE in the late 1950'ies. Last year he was diagnosed with > Alzheimer, and over the past few months my siblings and me have been > emptying his apartment and storage room, and we've come across a sizeable > quantity of IBM "stuff", from manuals for the 650 to old square cm > "integrated circuits" and even a magnetic core memory card. My siblings > weren't in the least interested in any of it, so I took it, and although > it's nice to look at, our house is already full enough as it is, so... > > If anyone thinks they can offer a good home to these things, and I will, > hopefully soon, put pictures of everything that surfaces on my website, > feel free to contact me off this list and we can take it from there. You'll > most definitely be paying for shipping (from Lithuania), and based on what > I'm going to find out on fleabay, I might ask for a bit more. > > Robert ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
