Also, waving a magnet around a crt was fun.
this post was submitted on 23 Oct 2024
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Yes!
Also, the static on the screen. I don't mean snow, but the actual static that raised your arm hairs. Whenever my parents needed to leave a note for us, they'd just stick the paper to the TV screen and it would stay there because of the static.
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Older forms of computer RAM.
Before integrated circuits, we had core memory which was a grid of wires and at each intersection was a little magnetic donut that held a single 1 or 0.
https://en.wikipedia.org/wiki/Magnetic-core_memory
Before that they had delay line memory, where they used vibrations traveling down a long tube of mercury, and more bits meant a longer tube to store a longer wave train.
Even though the story involves drum memory instead, your mention of delay-lines reminds me of The Story of Mel, a Real Programmer. Y'all should read the whole thing (it's not long), but here's a quick excerpt:
Mel's job was to re-write
the blackjack program for the RPC-4000.
(Port? What does that mean?)
The new computer had a one-plus-one
addressing scheme,
in which each machine instruction,
in addition to the operation code
and the address of the needed operand,
had a second address that indicated where, on the revolving drum,
the next instruction was located.
In modern parlance,
every single instruction was followed by a GO TO!
Put *that* in Pascal's pipe and smoke it.
Mel loved the RPC-4000
because he could optimize his code:
that is, locate instructions on the drum
so that just as one finished its job,
the next would be just arriving at the "read head"
and available for immediate execution.
There was a program to do that job,
an "optimizing assembler",
but Mel refused to use it.
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Interchangeable automotive/bicycle parts.
Or for that matter, interchangeable anything parts.
Both cooler and better at the same time. Interchangeable parts made it easier to both customize and repair your own stuff..
I love that Replaceable Parts is a technology you can research in Civilization. The first time I saw it I thought it was kinda stupid until I thought "Oh wait, does that mean that there was a time when replacement parts just wasn't a thing?"
Used to be where Mongoose, Huffy, Schwinn, etc bearings and stuff were interchangeable. Used to be where NVidia GPUs could run in an AMD motherboard. I happen to own older things on both ends of that compatible spectrum.
Used to be where an Idle Air Control Valve from a Chevy would fit an Isuzu...
Used to be where NVidia GPUs could run in an AMD motherboard.
They still can.
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Used to be where NVidia GPUs could run in an AMD motherboard. I happen to own older things on both ends of that compatible spectrum.
I don't know what you mean by that. The protocol for communication of computer parts is open source. Desktop computers are a great example of interchangeable parts. An Nvidia GPU that can't run in an AMD motherboard is either not from the same era (so an equivalent AMD GPU wouldn't work either) or a different form factor (e.g. trying to plug a laptop GPU on a Desktop)
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Being able to build something with off the shelf parts is an art.
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The Gameboy.
The switch is neat, but it's too large.
Horsehide bomber jackets of the sort worn in WW2.
We can make cheaper and lighter synthetic materials. But I like the look that leather jackets acquire with wear over time (and particularly horsehide, which is less-available today than cowhide, as we don't have many horses around any more).
They aren't gone -- it's still possible to obtain them. But in 2024, they're really limited to people going out of their way to get them.
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Carburetors are pretty fuckin cool.
The concept seems simple: utilize the vacuum from the engine to pull in fuel. But they're extremely complicated with all the tiny orifices and passageways to perfect the amount of fuel going into the engine at different points.
Unrelated sidenote: i got deja vu writing this comment. Interesting.
A fuel injector is measurably better in basically every way.
I might still rather have a carburetor...
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Railway signalling and interlocking systems. Sure ETCS and other digital systems are far safer, but some dude at a junction used to manually reset the points and crossovers using a giant lever. Now everything’s just a digital system overseen by someone with 8+ monitors in a control room removed from the actual network.
Also, not a technology, but rally cars used to be fully unhinged. I could watch old Group B videos for hours and never get bored.
Come to Germany, we still use parts from emperors time😂
I still think ZIP drives are pretty cool. Or using cassette tapes of any kind for data other than video/audio. Hella wish I had a DAT drive still.
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The Apple II is still such a fucking cool computer.
Sure, my watch is about a billion times more powerful, but my watch will never be as cool as the Apple II.
Never did I wish I'd been born 30 years earlier quite how when I saw 8 bit guy's video on the workings of an Apple II
I simply adore how tinkerable that thing seems to be.
It's mainly cool to me because of what it represented in its era. It was personal computing available for the masses, yes, but it's also the embodiment of the American dream. Here's these guys soldering and writing code in their garage, and all of the sudden they're in stores across the world, and competing with giants such as Xerox, and IBM. It's a product from a story for the ages.