The Atari XE Game System. Not so much a game system but an Atari 65XE without the expansion bus connector.

If you have the keyboard attached, it runs basic. Disconnect the keyboard, it runs Missile Command.

None as yet!

Specifications:

ERA:	1987
CPU:	6502C
RAM:	64k
DRIVES:	n/a
MONITOR:	TV (RF) or Composite Out
AUDIO:	4 Channel Sound
I/O:	1 x SIO Interface 1 x Composite Video Output 1 x RF Output 2 x Joystick Connectors 1 x Keyboard Connector 1 x Cartridge Port
Keyboard	Optional QWERTY 57 key