The dies under the Talking Computron globs don't have any logos, and I think the labeling is custom: one is marked F803 7100D and another F138 7010. The third die is a ROM, completely unlabeled, and I can't distinguish ones and zeros in the array.

One of the dies has 42 pads, and the "notebook" Computron that I have uses a Toshiba 42-pin MCU, so maybe this is a customized version of that. The Toshiba MCU has a test pin, so I'm going to try to dump it electronically before decapping it.