August 1981. I was 6 years old.
My father bought one of the original IBM PCs, serial number < 100. It would be a collector's item today, had it survived unmodded. I was programming it by mid-October.
BASICA!
But that same chassis, with
significant enhancements, got me all the way through high school.
A 20MB RLL Hard Drive!
256 KB RAM!!
A CGA monitor!!!