I taught myself Turbo Pascal on a friend's IBM PS/2 P75 [1] around 1990, also a briefcase-style luggable that came out a couple of years after this one.
The P75 had a delightful orange plasma screen, and the keyboard was wired and could be unhooked from the case, and since it was a 486 chip, it could all of DOS, OS/2, and Windows (and apparently it was able to run Windows 95 when that came out).
My main machine at the time was the Amiga 500, and the PS/2 felt like a step down in terms of graphics and so on, but Turbo Pascal was just too magical for me to care.
The P75 had a delightful orange plasma screen, and the keyboard was wired and could be unhooked from the case, and since it was a 486 chip, it could all of DOS, OS/2, and Windows (and apparently it was able to run Windows 95 when that came out).
My main machine at the time was the Amiga 500, and the PS/2 felt like a step down in terms of graphics and so on, but Turbo Pascal was just too magical for me to care.
[1] https://en.wikipedia.org/wiki/IBM_PS/2_portable_computers