Were both Memotech MTX and TEC-1 single-board kit computers?
TEC-1 The TEC-1 is a single-board kit computer first produced by the Australian hobbyist electronics magazine Talking Electronics in the early 1980s. It was based on the Zilog Z80 CPU, had 2K of RAM and 2K of ROM in a default configuration. Later versions used a 4k ROM with two different versions of the monitor software selectable via a switch. This allowed the early software presented in the magazine to be used with the later version of the TEC-1.
IBM RAD6000 The RAD6000 radiation-hardened single board computer, based on the IBM RISC Single Chip CPU, was manufactured by IBM Federal Systems. IBM Federal Systems was sold to Loral, and by way of acquisition, ended up with Lockheed Martin and is currently a part of BAE Systems United States subsidiary BAE Systems Inc. operating group BAE Systems Electronics, Intelligence & Support. RAD6000 is mainly known as the onboard computer of numerous NASA spacecraft.