Atari 7800
An improved version of the 2600 released in 1986,
features a built in version of asteroids. It is also backwardly compatible
with 2600 games. The UK version came with one of the first ever joypads
which came with a joystick add-on which screws into the d-pad.
Released in 1986 it never did particularly well. Its
available in PAL versions. Features almost 100 independent sprites,
better colour palette and a computer keyboard add-on. An encryption
key system was added into its cartridges, If the key was valid the
MARIA chip would become active and go into 7800 mode, if not then
the system would stay in 2600 compatibility mode. There were 3 revisions
of the system.
US Version of the 7800, slight differences to appearance and outputs in NTSC.
CPU
|
6502C, 1.79 MHz
|
Memory
|
4K
|
ROM
|
52K max
|
Graphics
|
- MARIA custom graphics controller
- 320x200 resolution with 256 colours
- 7.16 MHz
|
Accessories
The Joypad released in the UK was very similar to the
NES pads which were released around the same time. It features a joystick
which screws into the D-pad.
The standard joystick design for the US version. Some
of this design also on the UK but you mostly find the joypad types.
Games