Got a sweet MSDOS palmtop in the mail from @ajroach42 the other day and after some small hardware fix ups I am settling in with it. This thing is an _astonishing_ device. I can hardly believe it’s real.
This is a fully functional 7MHz 80186 DOS machine, running MSDOS 5.0, with full CGA graphics support. It runs off of two AA batteries. Apparently for weeks. While constantly powering a RAM disk. I have been using this thing fairly heavily since Wednesday, including large serial file transfers that took well over an hour of constant, sustained use. Battery is still at 7/8 full.
The thing I didn't quite realize until I had the thing in my hands is that it is a _very_ full-featured PDA, with a _ton_ of useful software built into ROM, and a multitasking shell with convenient app-switching hotkeys. Everything you'd expect on a modern smartphone is there - calendar, alarms / reminders, TODO list, contact management, stopwatch...
And then there's a ton of stuff which is kind of above and beyond - spreadsheets (Quicken), finanical software (1-2-3), scientific graphing calculator, full customizable database, full serial terminal & laplink with modem support, _scheduled tasks_! You can write cronjobs that run batch files, and it will run in the middle of the night because the thing is always on and uses no power! This is a far better, more useful DOS machine than my desktop!
I've spent the past year and a half writing DOS games on my desktop, and one thing that was consistently an annoyance is that I had no way to look at my code while my game was running. I've got a full interpreted interactive scripting language with a REPL, but I have to quit to make changes. This thing has a full text editor that I can task-switch to with a single keypress and takes up ~30kb of RAM! This could completely change my entire workflow!
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