Oh, you’re right, it’s right there in the link you shared–it was built in to MS-DOS, but only from version 6 on. I must have misremembered it as paid because it was something we didn’t have, and then later we did.

Ah, yeah, I think that may actually have been a paid program. It was something folks were willing to pay not to have to do, because, as I say, it was surprisingly tricky to manage the memory below 640K.

IIRC the application was just “edit.com”, as in “edit autoexec.bat”. The different kinds of memory were expanded memory, extended memory, and the high memory area; high memory was useful regardless which of the other two you were using, and those two were for the most part kind of interchangeable. You also typically had to mess with config.sys, which handled some things like the mouse driver. It was really common to have specific floppy disks that had only those two files on them (well, and were set to be bootable), so that if you needed a particular configuration for some game–maybe you didn’t load the CD-ROM driver, since that took up a lot of precious low-memory kilobytes–you could leave your normal setup alone and just stick your custom boot disk in for that program. Some programs were really tricky to make enough room for, even if you had a ton of RAM, because that privileged low ram area was so hard to manage.

Oh, I was using Keepass2Android as a password vault, but was a little frustrated with it because occasionally it’ll forget to synchronize with the file before adding an entry and leave a “conflicted copy” I have to deal with manually. If KeepassDX will also do TOTPs that sounds perfect.

Do you have a replacement you would recommend?

A bit of a weird one because it never actually came out, but I was really excited about the news that Michel Gondry was set to direct a film adaptation of Rudy Rucker’s novel The Master of Space and Time. I really like both Gondry and Rucker, and their sensibilities would have worked really well together. The story is kind of a sci-fi three wishes fable. It’s not my favorite of his–that’s gotta be White Light–but it’s really light-hearted and fun. And Gondry is terrific at getting bizarre, dream-like ideas onto film. I’m still bummed out that they cancelled that.

For something that actually did come out but then got cancelled, I enjoyed Disney’s adaptation of The Mysterious Benedict Society. Then they threw that one down the memory hole for tax reasons, so there’s no way to watch it anymore short of piracy. I feel like that shouldn’t be allowed. Seems like they should add least have to provide the Library of Congress with a copy. It’s weird that our cultural history can just be yanked away like that now.

This depended on the phone. The HTC One M8, for instance, had a surprisingly good built-in DAC.

Sure, I mean, anything you need a spacecraft to do but that you can accomplish without adding extra equipment, you should probably do it that way, because it means less mass to accelerate and less equipment to test and certify and so forth. It’s definitely not hard to imagine getting this functionality without adding equipment. The question is whether the ability to do this in the rare scenarios that call for it offset the drawbacks of having a system in which the protections against such failures can be disabled. Which means you then have to include a bunch of interlocks and crap to ensure it’s as unlikely as possible that the ship can get into that mode without someone being very sure they want that. I think OP is probably right that on, say, a cargo ship, it’s pretty unlikely that “also, the engine can explode!” would be seen as a feature rather than a wholly alarming bug.

That would make sense for a cutting edge spy plane, but it’s a little weird for something like the Nostromo, which is just a standard cargo ship. I guess if you sometimes carried secret cargo, though, you would want that equipment standard, since otherwise installing it custom for one trip would be a dead giveaway that there was something secret on board.