1st (gen):
pong (TTL) maybe others

2nd:
APF-MP1000
Atari 5200
Bally Astrocade
Interon VC 4000/1292 Advanced Programmable Video System
Vectrex
Super Vision 8000

3rd:
Casio PV-1000

4th:
Neo Geo
Genesis
SNES
Super A'Can
TG-16


computers:
(6502)
Vic-20
C64/128
Apple 2
Atari 8 bit
aquarius
XT (8086)
PC (286 level)


(z80)
spectrum
MSX
ZX81

(68K)
amiga
atari ST
mac?

(6809)
RS colour computer


arcade:
robotron/kidvidz games
vector games

hand held:
gameboy/gb colour
micro gameboy
lynx
microvision?
game master (looks rare, hard to find info)
gamate (rare)
megaduck/cougar boy (GB hack?)
game king (rare)