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The Atari 800 Personal Computer System (656 words) |
 | The Atari 400 and 800 got their number designations from their original memory configurations which were 4K for the 400 and 8K for the 800. |
 | The front of the Atari 800 was equipped with 4 controller jacks which were compatible with all of the Atari 2600 joysticks, paddles, and keypads. |
 | Atari also developed a 64K RAM card for the Atari 800 to replace all 3 16K RAM cards, this card too was never sold. |
| AtariAge - Atari 800/XL/XE History (2023 words) |
 | Behind the open cartridge door of the Atari 800 were two latches (later replaced by screws) which when opened revealed an expansion bay within the top of the Atari 800. |
 | Atari also encased its expansion boards inside of custom cases so that they could be handled as easily and safely as cartridges. |
 | Atari would later introduce a replacement for the 830 called the 835 Direct Connect Modem and this device was an SIO compatible device, therefore not requiring the 850 interface. |