The Golden Age of Basic
spectrum.ieee.org
spectrum.ieee.org
I'm not sure about Macs, but PC-DOS/MS-DOS came with BASIC/BASICA[1] or GWBASIC[2] (or QBASIC[3] in the 90s with MS-DOS 5.0). I wrote a bunch of little fun programs when I was 12-13 in the BASIC that came with DOS.
[1] http://en.wikipedia.org/wiki/IBM_BASICA [2] http://en.wikipedia.org/wiki/GW-BASIC [3] http://en.wikipedia.org/wiki/QBasic
In the late 1980's Apple was selling Mac SE's at close to $3000 list price and Mac II's at $5500 list. These were targeted at business customers with prices comparable to the bottom end 8088 IBM PS/2 and top 80286 PS/2 respectively.
http://en.wikipedia.org/wiki/Timeline_of_Apple_II_Family
https://archive.org/stream/byte-magazine-1987-06/1987_06_BYT...
http://books.google.de/books?id=Vi8EAAAAMBAJ&lpg=PA30
http://books.google.de/books?id=Vy8EAAAAMBAJ&pg=PA54
Don't remember seeing many macs, most other kids had PCs too by the end of the 80s (my parents bought one in '87). I understand the apple2 was more popular in America though due to Apple pushing very aggresively into the school market.
My impression is most of the home computing scene largely moved over to Amigas and Atari STs.
The first game in Team 17's long running Worms franchise was written in Blitz.