Manufacturers

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Atari 400 (NTSC)

  1. Game infos
  2. Parent and Clones
  3. Sound
  4. Driver
  5. Inputs
  6. Controls
  7. Display
  8. Configurations
  9. Roms list
  10. BIOS set
  11. Chips list
  12. Categories
  13. History
Download a400.zip (0 B)
Snapshot

Game infos

Description Atari 400 (NTSC)
Name a400
Manufacturer Atari
Year 1979
Runnable yes
System arcade /
Number of players Non-arcade
Added to MAME .036b16
Romset size 0 B
Romset file files
Romset zip 0 B
Genre Computer

Parent and clones

Parent This game is the parent

Sound infos

Sound_channels 1

Driver infos

Driver status good
Driver emulation good
Driver color good
Driver sound good
Driver graphic good
Driver cocktail
Driver protection
Driver savestate yes

Inputs infos

Input service no
Input tilt no
Input players 4
Input buttons
Input coins

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy 8 no
keyboard no
paddle 0 228 200 10 yes

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 336 225 59.923329

Configuration

name tag mask
Television Artifacts
Name Off
Value 0
Default yes
Name On
Value 64
Default no

artifacts
 64

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade co12399b.rom 2048 6a5d766e 01a6044f7a81d409c938e7dfde0a1af5832229d2 maincpu d800 good no
arcade co12499a.rom reva 4096 29f64e17 abf7ec488c6b600f1b7f30bdc7f8a2bf6a727675 maincpu e000 baddump no
arcade co12499b.rom default 4096 d818f3e8 bcdec2188f6a6a5bfc1df4e383bd828d34b5c4ac maincpu e000 baddump no
arcade co14599a.rom reva 4096 bc533f0c e217148495fa747fe5488132d8d22533e68c7e58 maincpu f000 baddump no
arcade co14599b.rom default 4096 c1690a9b c5248e8565574fd39ae1c3f4f356aa4cac07df95 maincpu f000 baddump no

BIOS set

name description default
default OS Rev. B yes
reva OS Rev. A yes

Chips list

name tag type clock
1-Bit DAC dac audio
M6502 maincpu cpu 1789790
POKEY pokey audio 1789790
Speaker speaker audio

Categories

History


Computer published 40 years ago:

Atari 400 (c) 1979 Atari, Incorporated.

- TECHNICAL -

Original machines in beige cases and has a membrane keyboard.

- TRIVIA -

The Atari 400 and 800 were the first home computers to use custom coprocessors and the first to use 'sprites' and special video interruptions like display lists, features that will be implemented several years after on the Commodore Amiga. It offered high graphic resolution, lots of colors and great sound capabilities, more than other computers could do then! The
two models had same characteristics, the 400 is the low-cost version, it has only 16 KB (instead of 48 KB), one cartridge port (two for the 800) and a membrane keyboard (a typewriter style keyboard one for the 800).

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=54859&o=2