1976- Science Fair- Microcomputer Trainer
1976- Microcomputer Trainer had a set of about 30 commands (15 simple, plus some 'extended'), which were entered through the keyboard. The keyboard suffered badly from switch bounce; increment would sometimes be registered twice, causing much annoyance.
The CPU (or rather MCU - Micro Computer Unit) is a Texas Instruments TMS1100. This was an expanded version
of their flagship "computer-on-a-chip"; the TMS1000, which was used in their "Speak and Spell" toy. According to the MCT manual, the clock speed was 400 kHz but this is higher than the specification for the chip! (Were Science Fair guilty of over-clocking!?!). Presumably the monitor was burnt into ROM.
There was no bulk storage: programs were lost when power was removed, so had to written down manually.
The manual contains instructions for the built-in games and example programs (complete with flowcharts). Some of the example programs are quite complicated.