OOOH I remember these!
My dad had one when I was a little lad.
I remember putting in a tape, typeing some command and pressing "Play" on the Tape Drive... then waiting.... eat lunch....take a ride on my BMX..... take a nap..... YEAH!!! its done I can play!!!!
Also had a BIG ASS book with it with plenty of games that you could "type" over and then play! Took forever!
