[throw0101a]

> I had my formative years in programming when memory usage was something you still worried about as a programmer.

As 'just' a user in the 1990s and MS-DOS, fiddling with QEMM was a bit of a craft to get what you wanted to run in the memory you had.

* https://en.wikipedia.org/wiki/QEMM

(Also, DESQview was awesome.)