The "Beamfoot" - 1981 IBM 528X-83 type Model B keyboard
https://lemmy.world/post/5829606
The "Beamfoot" - 1981 IBM 528X-83 type Model B keyboard - Lemmy.world
IBM 5281/5282/5285/5286 Data Station Typewriter Keyboard (P/N 2658984)
[https://lemmy.world/pictrs/image/3011c480-ab21-4f15-86d3-e4e4dae73c13.jpeg]
Quick specs: * 528X-83 type Model B keyboard
[https://sharktastica.co.uk/wiki?id=modelb#528X-83] * 83-key Italian layout *
IBM beam spring clicky key-switches
[https://sharktastica.co.uk/wiki?id=ibmbeamspring] * Double-shot SAN keycaps *
Made by IBM Italia * Some call this the “beamfoot” as it resembles the later IBM
5291/5292 Model F keyboard but in Model B form * The speaker present was likely
used to simulate what a solenoid did for other Model B keyboards or provide
audible cues from the system That’s a lot of numbers in the name… I hear you.
This is what I call a 528X-83 type Model B keyboard
[https://sharktastica.co.uk/wiki?id=modelb#528X-83]! 528x family, 83 keys. I
call it so because the habit of calling most IBM Model B(eamspring) keyboards by
simply “5281”, “5251”, “3276”, etc. isn’t really accurate, in my opinion and
experience. As per the cable tab from the speaker, this keyboard must’ve been
made in the first half of 1981.
[https://lemmy.world/pictrs/image/5fc42766-9f66-48a0-a48a-63459e8e36d2.jpeg]
[https://lemmy.world/pictrs/image/6b64b29b-d820-4267-bbc2-60d023125792.jpeg]
[https://www.keebtalk.com/uploads/db8059/original/3X/6/8/686ff17c113fbf782807f524c854875c89a7576f.jpeg]
The IBM 5280 Distributed Data System was announced in January 1980 and was a
‘diskette-based system’ for distributed processing and data entry. There were
several data stations within the family: * IBM 5281 Data Station * IBM 5282 Dual
Data Station * IBM 5285 Programmable Data Stationn * IBM 5286 Dual Programmable
Data Station The stations themselves resembled the more common 5250 series
terminals such as the 5251 and 5252. 5281 and 5285 were single-operator
stations, 5282 and 5286 were dual-operator stations. 5285 and 5286 were
additionally “programmable” stations. My understanding is that thee
dual-operator ones had a single CRT inside that’s optically split to either
user. A 66-key data entry version
[https://sharktastica.co.uk/wiki?id=modelb#528X-66] of this keyboard also
exists.
[https://lemmy.world/pictrs/image/67af1f02-2430-41ed-9e66-104bf2e4f6c6.jpeg]
[https://lemmy.world/pictrs/image/99708b15-25bb-485a-99fa-18b8e0295846.jpeg]
[https://lemmy.world/pictrs/image/85228c42-e552-482f-bff9-7ca44f9b64ee.jpeg]
[https://lemmy.world/pictrs/image/1821bf87-deef-429b-8803-78a64fed4333.jpeg]
1995 Lexmark Classic Touch Keyboard with Integrated Pointing Stick (Model M13, P/N 1403380)
https://lemmy.world/post/1201160
1995 Lexmark Classic Touch Keyboard with Integrated Pointing Stick (Model M13, P/N 1403380) - Lemmy.world
This was a new-in-box Lexmark-branded Model M13, a buckling spring keyboard with
a nub/nipple/whatever-you-call-it stick! Unlike most IBM-branded versions,
Lexmark-branded M13s use a different kind of sensor array for the stick
(force-sensing resistors instead of strain gauges) hence why Lexmark doesn’t
brand this as “TrackPoint”. Like Unicomp EnduraPro sticks, it moves like a
little joy-stick instead of remaining stationary. Instead of dual PS/2 plugs,
this model has an AT full-DIN plug for the keyboard and DE-9 RS232 serial plug
for the nub. For more info, see my IBM Model M13 wiki page!
[https://sharktastica.co.uk/wiki?id=modelm13] In the box was also a driver disk
(an image of which will soon be archived on my website and archive.org
[http://archive.org]) and various Lexmark literature including a snazzy Lexmark
Model M family pamphlet, a keyboard operator’s guide (user guide) and something
that dictates how you’re supposed to a sit at a computer desk. Upon opening, the
cable quickly degraded and started shedding everywhere. In lieu of a
replacement, I’ve tapped and wrapped already damaged parts, used cable ties to
limit possible flex and left most of the cable alone in the original packing.
For now though, the keyboard and cable remains operational.
[https://lemmy.world/pictrs/image/0de8dbf6-3ccb-4405-be09-34ecbb6646d7.jpeg]
[https://lemmy.world/pictrs/image/5c796e36-8b6e-41ac-9582-65316e59d0f6.jpeg]
[https://lemmy.world/pictrs/image/9a5a557a-7fef-454c-af8b-0ab04227af23.jpeg]
June 1984 IBM Wheelwriter 5 Keyboard Assembly (Model M, P/N 1351000)
https://lemmy.world/post/1141044
June 1984 IBM Wheelwriter 5 Keyboard Assembly (Model M, P/N 1351000) - Lemmy.world
My current earliest IBM Model M based keyboard, and one of the earliest Model Ms
ever recorded! Whilst the overall assembly design ‘language’ is clearly Model M,
there are some unique features to such early IBM Wheelwriter 5 (and Wheelwriter
3 and Quietwriter 7) keyboards including O-rings around each populated buckling
spring barrel and ‘cushionless’ flippers
[https://sharktastica.co.uk/wiki?id=ibmbucklingspring#IBMMemCushionless]. See my
website for more info on Model M family keyboards
[https://sharktastica.co.uk/wiki?id=modelm] and buckling springs
[https://sharktastica.co.uk/wiki?id=ibmbucklingspring]!
[https://lemmy.world/pictrs/image/92d81fc4-ba93-4688-96ca-41ed4049b030.jpeg]
[https://lemmy.world/pictrs/image/71cbb19c-7557-486d-bb50-5fe03d40ec0d.jpeg]
[https://lemmy.world/pictrs/image/adb4e8f8-ed5b-463d-bc70-dede859096e4.jpeg]
[https://lemmy.world/pictrs/image/1d1416ac-0255-4c87-aabd-b60d954e8701.jpeg]
