Some fun photos from Large Scale Systems Museum near Pittsburgh!
This magnificent Enter on both sides of this Singer/Friden minicomputer console.

DEC disk pacs (and some magnetic tapes) everywhere.

https://en.wikipedia.org/wiki/RK05

Some very good on/off switches…

…and some very good regular switches, too.

(I liked the whole hierarchy of toggles in that last photo.)

Although the FILE UNSAFE… switch? light maybe? was unexpected.
A strange way to put an LED inside a button.
On the other hand, this is a cool way to choose a font.
This Dasher line famously inspired Severance set design…
…but I have never seen a screen-less printer-terminal like this one!
Speaking of, some more nice keyboards.
Loved this guarded (and hyphenated) RESTART key.
Which one is more scary: a Mac keyboard pretending to be a Space Cadet, or a Kaypro keyboard with an extremely intense overlay?
(Mastodon rate limited me! More in a bit.)
I miss the old terminal proofreading-inspired icons for INSERT and DELETE.
Here: symbols for inverse video, blinking, underlining, and… something?
This is a rare space-saving variant of the famous DEC keyboard that established the inverse T arrow key standard.
All the classic colors of CRTs: amber, white, green, and burn-in.
(Hey computer, read the room.)
For blue, you have to go with IBM blue.
If you looked carefully, you might have spotted this Y2K readiness sticker on the last photo.
Fun tape changing instructions on the device itself.
Not-so-fun instructions from an accounting computer that was used at a funeral home.
Fun arrangement of ports on an IBM computer + a secret inventory # Gorton.
Just a lot of shoddy Gorton all around. 🧡
The future was once now.
A lot of wires in the old computers.
Why do companies tried to make circular mice happen so hard? I think this is the third one I know of (after the iMac puck one and the later NeXT one).
In my next life, I want to come back as a Nixie tube.

That’s it! I spent most of the time on the first floor with big machines. There is an entire second floor with a lot of microcomputers, but those were more familiar to me.

This is the website: https://www.mact.io/about_us

It’s currently by appointment. The volunteers were very nice!

Large Scale Systems Museum / Museum of Applied Computer Technology

Large Scale Systems Museum

Explore this photo album by Marcin Wichary on Flickr!

Flickr
@mwichary Thank you! Some beautiful examples. Always love the vibrancy of some of those old machines. And of course some good clunky switches!
@mwichary OMG this thread is spectacular! Thanks for sharing! 🤩
@mwichary what an excellent thread, thank you for the great photos and for sharing!
@mwichary Thank you so much for posting all of those photos! What a treat.
@mwichary I have some nixie tube calculators (pic 1), but you might also enjoy the not-quite-7-segment aesthetic of Itron displays (pic 2)
@lcamtuf Ha – I reproduced that last one as TTF some years ago!

@mwichary My dad had an old electronic calculator — an enormous thing that must have weighed 20 kg — with a row of 10 or 12 Nixies for the display.

It was fascinating to watch in use, because it was *just* slow enough to see the digits flicker back and forth while it was calculating the answer.

@mwichary if I had a pound for every time someone in our university computer labs grabbed one of these mice the wrong way round and momentarily thought they were having a stroke… 😂 ah good times
@mwichary
and the underside is even more insane than the top… did you get a photo of it?
@andrewg Oh yeah! With the two slanted wheels?
@mwichary it’s like architects who create buildings that a human would hate to live in.

@mwichary Here's another circular mouse for you. This one came with the AT&T 5620 terminal (I used one in grad school back in the day).

https://www.ebay.com/itm/265518759380

Depraz Digimouse Mouse AT&T Terminal Computer Mouse BLIT DMD 5620 630 MTG | eBay

Depraz Digimouse Mouse. The Digimouse mouse has 3 paper labels on the bottom that read The AT&T Digimouse box reads Instead of a steel ball like the older mouse's, a transluscent hard plastic ball moves freely in a larger opening in the Digimouse's retainer ring.

eBay

@mwichary because "design"?

Glad we settled on: because human.

@mwichary Why? Because they are great for some people. The ball inside is round and it feels right to grab round things. Why do most companies go out of their way to make mice look like this odd shape that is like nothing you touch in normal life?

If today’s UI wasn‘t that hostile to single-button-no-scroll-thingie I‘d be rocking the puck every single day.

@mwichary Because they WANTED to make an Orb, but it kept rolling off the desk. This is the compromise.
@mwichary Another one for your list: I used one on a Dec MicroVax II, back in the late '80s. It had quite a large diameter, and fit reasonably well under the hand.
@mwichary Played a little netrek with those back in the day...
@mwichary The same reason engineers seem to think that the uppercase O in a font should be perfectly round.
@mwichary
Oof, that brings back memories...
@mwichary We have gone from System-in-a-Cabinet (SiC) to System-On-a-Chip (SoC). My iMac Pro has a million times the RAM that my 1984 original Mac had. The cost was still around $2500 adjusted for inflation, so a million times more computer for roughly the same price. I visited the Living Computers Museum in Seattle before the pandemic closed it. That was really fun. The Computer History Museum in Mountain View CA is also pretty good.

@mwichary

worked some years with two 780s and a 750. These we're nice machines to work with.

But quite funny: my pimped Amiga 2000 at home with 68030 and 68882 FPU was running the same applications at comparable speed

@mwichary What do you mean by 'Gorton' in these ?
(As someone from Manchester I'm most used to it as being a pretty grim area of Manchester, but which once housed one of ICL computers sites); https://en.wikipedia.org/wiki/International_Computers_Limited )
International Computers Limited - Wikipedia

@penguin42 Gorton Engraver company. Marcin noticed that it's the font on so many keycaps.

My dad worked at ICL Gorton a couple of times.

@scruss Oh, interesting - I didn't know of the font/engraving machines.
@penguin42 keycaps on the BBC micro were in Gorton
Gorton (typeface) - Wikipedia

@mwichary you sure this isn’t a Nanoraptor special? 🤣
@mwichary sorry for the fan mail, but, oh holy wah, I am so excited by every one of these photos; nice work; thank you; etc.!
@mwichary this reminds me of Pentium II era HP motherboards when HP had diagonal RAM slots, an motherboards etched with all kinds of fun characters (yes, this is older, but seeing those ports reminded me of those bizarre #HP motherboards).
@mwichary so many great usernames in that list
@mwichary I think @d_j_fitzgerald made reproductions of those for a recent show or conference!
@mwichary I spy DEC BASIC...
@mwichary amber on a crt _feels right_