dlinder

Token-passing networks were interesting for hard real time system analysis, as they featured deterministic access control instead of collision detection. They made possible extending Rate Monotonic Scheduling theory to the network layer as well. The priority work (priority ceiling protocol, multi level token priority schemes) survive today in token bucket rate limiting.

Audit the Fed (cube)!

Around 1995, our high school "Pascal I" and "Pascal II" classes were taught in a forgotten Apple //e lab in the Math wing of the school. The PC and Mac labs were occupied by typing, word processing, and desktop publishing classes. I think every other kid in class groaned, but to a hamfest scrounger of PDPs, Vaxen, and weird UNIX workstations, UCSD p-System Pascal on Apple hardware was weirdly intriguing, the cherry on top being that the whole lab was served by a Corvus hard disk shared over, I think, an "Omninet" network. We'd all come in, turn on the lights, turn on the computers, and then have the lecture portion of class while this poor early NAS would serve Pascal to 20-odd machines simultaneously. I think we saved our work on floppy disks, though maybe that was a backup, as I think I recall turning in our work by saving to the Corvus? Even at the time, it all had a very "you are living the early experimental days" feeling to it.

This brings to mind the legendary "property passes" from Commodore / Amiga. These were passes to remove property from the office, so if you brought in personal property, you'd need to get a property pass issued to remove it at the end of the day. Of course the security guy handing out the passes was clueless, so the engineers would get property passes for Boeing 747s, Cray X-MPs (just in case Commodore ever bought a cray, the lucky holder of the property pass would presumably be able to wheel it out the door), and so on. Dave Haynie records these stories in his "Deathbed Vigil", though the property pass story seems virtually unmentioned on the textual web, aside from an everything2 source.

You can also write to [email protected] - but we will have the registration open again shortly (within weeks).

Dan @ Long Now

WarGames and Real Genius were the regular weekly watch (on VHS!) between my brother and I growing up. What WarGames is to computer hacking, Real Genius is to hacking, pranks, and working hard / playing hard.

"It's yet another in a long series of diversions in an attempt to avoid responsibility."

You sound like a kindred spirit. I have put hard drives in freezers to release stiction; I have baked motherboards in the oven to re-flow questionable solder. I wonder if anything in our kitchen is sacred! Sometimes I wish I had "MacGyvering goofy tech junk" as a full time job!

I worked on a social news product and part of our look was to have an icon for every story - either an image pulled from the page, a user-uploaded image, or, in the case of Flash content (say, a video player), a screen capture.

We had it all up and running - loading the content, waiting for the player to initialize, taking the snapshot, generated sizes - on a windows machine when, one day, the request came in to migrate that machine to a VM. After the migration, things were fine - until we disconnected RDP. Snapshots were coming back at the right size, but totally white.

The eventual "solution" was a laptop in the engineering area RDP'ed into this VM to keep the snapshots from going white. It got unplugged one holiday weekend, earning it a red hand-sharpied sign - "PRODUCTION LAPTOP: DO NOT UNPLUG". It was unplugged again one fateful weekend, this time prompting a healthcheck to be written that looked for all-white images in its output.

That rig ran that way, I believe, until someone had the insight to make a second VM, this one RDP'ed into the first.

Turtles, all the way down!