It is a "Nintendo on a Chip" (NOAC) system designed to plug directly into a TV via AV cables, often designed with a chassis reminiscent of a Nintendo 64.
Arcade Legends: Sega Megadrive 6-in-1 Classic TV Video Games Volume 1 (2004)
My Arcade 7011 Mega Man Pico Player 3.7" Portable Retro Arcade (6 Games in 1)
2004 Vintage HP Compaq TC1100 ,tablet pc, powers on but black screen
Vintage Apple iBook G4 2004 powerPC, 12", 1.2GHz, 768MB RAM, 60GBHDD
My Arcade - Pocket Player Mega Man + Carry Case