Ken Shirriff sur Twitter

Maintenance at @ComputerHistory. I fixed high-speed rewind on the vintage IBM 729 tape drive. It pulls the tape out of the columns, fast-rewinds most of the way, puts the tape back in the columns, and finishes with slow rewind (video). But that's not what was happening before...

#computermuseum #retrocomputing

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https://twitter.com/kenshirriff/status/1684647559703265280?s=20

The Vintage Computer Federation and the System Source Computer Museum are hosting a vintage computer repair workshop on Saturday July 22nd (7am-7pm) and Sunday July 23rd (8-5) 2023 at:

System Source Computer Museum 338 Clubhouse Road, Hunt Valley, MD 21031

https://museum.syssrc.com/artifact/events/3000/

#HuntValley #BaltimoreCounty #ComputerMuseum #VintageComputers #Cray #SwapMeet #HamRadio #Maryland

Back in 2011... ein hübscher Blick in die damaligen Räumlichkeiten des Computerspielemuseums in Berlin...

#retrocomputer #retro #retrogaming #vintagecomputer #retromagazine #computermuseum #berlin #oldcomputer #videogames #museum #c64 #c64games

Having a bit of a box sort today. Just the tip of the iceberg... I keep finding Speccy's I forgot I had 🤦‍♂️. Send help!

#retrocomputing #oldschoolcomputing #vintagecomputers #sinclair #sinclairspectrum #commodore64 #amiga #retrogaming #8bit #computermuseum #vintagegaming #retrotech #nostalgia #classiccomputing #vintagehardware

Found this #Victor #Sirius at the main entry of our museum. Ok, not my area, but heared of it before.
#RetroComputing #ComputerMuseum

The #EACA #Genie-I #EG3003 runs fine with it's new self soldered keyboard cable. The keyboard itself was putted into the dish washer.
Job finished and done.
#RetroComputing #Computermuseum

Yes I know, I'm slow but accurate. Barely an hour later I now have a new keyboard flex cable for the #VideoGenie #EG3003 with new connectors. Now just solder the socket into the mainboard and hopefully everything will work again on Saturday. It had dropouts on some rows of keys, but the key switches have been measured as good.
#RetroComputing #EACA #Tinkering #ComputerMuseum

Now I'm curious who knows the #KramerMC, or more uncommon who has ever seen one in real life.
At the end of the 1980s, a book by #ManfredKramer was published by the military publishing house of the GDR. It described how to build your own computer based on the 'Zilog' #U880 CPU. The book goes into many details, including monitor listings, circuit board layouts and technical details.
The example on the pic comes from the person who developed the circuit board layouts at the time. It has a personal dedication from Manfred Kramer and so it appears to be No. 2 of the KramerMC. In parts it is still usable, at least its display preparation is working again after extensive repairs.
#RetroComputing #GDR #Zilog #Z80 #ComputerMuseum

Take a look at the drive motor of this #IBM #BM5144681 hard drive. Today something like this is installed on the axle of electric cars 😅​ If the description at the bay is correct it has the enormous capacity of 13.7 MByte - that's almost ten 3,5" HD diskettes.
#RetroComputing #MainFrame #ComputerMuseum

Good morning my dears.
I hope I can delight your morning with a picture of our little #Sinclair collection. The picture was taken in 2019 at the #HNF (#HeinzNixdorfForum) exhibition in Paderborn at the #DoReCo retro event. The QL was used for bookkeeping in a tea shop in Berlin for many years and is originally labeled above the microdrives.
#RetroComputing #QL #Spectrum #ZX81 #MicroProfessor #ComputerMuseum

Save the date: on Saturday, 26.06. "#SoundChips and #Chiptunes" will be the topic at the #ComputerMuseum in Oldenburg: I will give a talk about the technology, guide a tour to the exhibited #HomeComputers and #GameConsoles with sound chips and conduct a #HandsOn sound programming workshop with #BASIC. Afterwards DJ Thunder.Bird will give a #LecturePerformance on #SID #Tracker software with acutal #ChipTunes.

#RetroComputing

Used the evening. After cooked for the family I edited all the articles at our website. Most of them missing the pictures after canceled WordPress to a new CMS. I'm happy with the result. So the move is complete.
#ComputerMuseum

A small blog post about my early #Zilog #Z80 beginnings and a short history review. For all other the wikipedia entry is more useful.

Automatic translation:
https://computermuseum--visselhoevede-de.translate.goog/sinclair-im-pause-4e4-modus?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=de
#RetroComputing #HomeComputer #ComputerMuseum #Sinclair #Spectrum

The interior of our #Cray #J932. Unfortunately I haven't figured out how to pull out one of the CPU cards. And before I break something, I'd rather let it be. So next time I'll have to ask someone who knows ;)
#RetroComputing #SuperComputer #ComputerMuseum

Morning! I'm going to use this photo from yesterday as the basis for a blog post about the #Sinclair #Spectrum. Provisional working title will be #Pause4E4 ;)
Have a nice Sunday.
#RetroComputing #HomeComputer #ComputerMuseum

40 Jahre #Apple #Lisa:

#Computermuseum veröffentlicht die #Quelltexte.

Ein Stück #Computergeschichte steht ab sofort Interessierten weltweit offen. Der #Apple_Lisa war seiner Zeit voraus. Jetzt stehen. ...

https://www.heise.de/news/40-Jahre-Apple-Lisa-Computermuseum-veroeffentlicht-die-Quelltexte-7466021.html

A little excited but nothing to worry about. Today the cash audit of our supporting association for the museum will take place. Since things went very well with good preparation in the last two years, it should hopefully do the same today.
#ComputerMuseum #Visselhövede #RetroComputing #Treasurer

An unserem Beitrag "Was und wie für wen archivieren" gibt es ein paar neue Kommentare: https://www.project-consult.com/in_der_diskussion/was-und-wie-und-fuer-wen-eigentlich-archivieren/

"Future Historians will call our Era the Dark Age of the Early Information Society"

#Migration #Computermuseum #Konvertierung #ContinuousMigration #Archiv #Persistenz #Obsoleszenz #Archivierung #RevisionssichereArchivierung #Revisionssicherheit #WayBackMachine #Historiker #InformationAge #InformatioSociety

A little view into our historical computer museum. That's just the hallway, there's even more. Let me count for a moment... 5 normal sized rooms, a much bigger one with just #Apple stuff and a really huge one that houses the server landscape.
#Computermuseum #Visselhövede

Every mobile has more computing power as this #HP server systems 9000. But a mobile does not warm up the room 😆​
#ComputerMuseum #Server