A little levity. You can’t be serious…all the time! The Dancing Demon running on a emulated TRS-80…TRSDOS is the OS! A mere picture doesn’t do this justice. In all seriousness this was cool in 1979 and early 1980s. Most of my schooling was in IBM mainframes where I would type COBOL and Assembler programs into a card deck. These cards would be read in with a card reader. Where they would be placed into a job queue. If you were lucky you might get back a listing on greenbar paper in a hour. We also had a DEC PDP 11/40…I think, which was interactive like the TRS-80. However it still was shared with other students. Your individual session was limited to 30 minutes. I had a TRS-80 Star Trek game that played identical to the one running on the PDP. So the idea of having my own computer that I could use anytime I wanted was very cool.