My first computer, you programmed it in basic and then you could record the program on a cassette tape via a connection to the microphone. I even had fun listening to the tape (sounded like a modem). I copied an entire Star Trek text-based game into the thing. That was about all I did.
“Ohio Scientific has made a major breakthrough in small computer technology which dramatically reduces the cost of personal computers. By the use of custom LSI micro circuits, we have managed to put a complete ultra-high performance computer and all necessary interfaces, including the keyboard and power supply, on a single printed circuit board.