The first program I wrote (for someone else) that ran on a
bona fide 'personal' computer (a tricked-out TRS-80 Model III w/LDOS) was written in BASIC.
TRS-80 Disk Basic IIRC. LDOS + disk Basic was considered a fairly powerful OS/language combo at the time.
Other than picking up a smattering of C++ more recently, I haven't done anything resembling
real programming in a very
very long time.