The TMS9900 was designed as a single chip version of the TI 990 minicomputer series, much like the Intersil 6100 was a single chip PDP-8 (12 bit), and the Fairchild 9440 and Data General mN601 were both one-chip versions of Data General's Nova.
LMS Royal Scot Class 6100 Royal Scot | Intersil | LMS Royal Scot Class 6100 ''Royal Scot'' | Intersil 6100 | 6100 Kunitomoikkansai |