The Atari 7800 was a third-generation video game console released in June 1984 and then re-released in January 1986. Atari designed the 7800 to be backward compatible with all Atari 2600 games and controllers, partly due to the commercial failure of the Atari 5200 which lacked these features.
Atari 7800 console and controller
|Release date||June 1984 (NA original release)|
January 1986 (NA re-release)
|Media type||ROM cartridge|
|Input||2 controller ports|
|Processor:||Atari SALLY 6502 ("6502C") @ 1.79 MHz|
|Memory:||4KB (2 6116 2Kx8 RAM ICs)|
|Video display processor:||MARIA custom graphics controller @ 7.16MHz|
|Display palette:||256 color palette out of 256 colors (16 hues * 16 luma)|
|Resolution:||160x240 or 320x240 (NTSC)
160x288 or 320x288 (PAL)
|Sound:||The 2600's TIA chip (7800 games only use the sound, 2600 games use sound and video)|
For detailed information, see Atari 7800 Hardware.
http://atarihq.com/danb/7800cart/a7800cart.shtml - Useful technical information