That computer is where I learned machine language and going online. After I got an 800XL I even wrote a database application that could handle a dataset larger than the memory (used the disk as extra memory). So it could work as a computer pretty well.
That's really cool. I messed around with DOS 6.22 QBASIC for awhile. Wrote another crappy game program, and then after hours and hours of code writing and debugging, I found out that it couldn't be compiled into a stand-alone app. I got disgusted with programming at that point and went into networking instead, lol!