Uploaded January 2021 | Updated September 2026, 1 week ago

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MACHINE DATA:

MODEL 800 XL
MANUFACTURER Atari
TYPE Home Computer
ORIGIN U.S.A.
YEAR 1982
END OF PRODUCTION January 85
BUILT IN LANGUAGE Atari Basic
KEYBOARD Mechanical
CPU MOS 6502C
SPEED 1.79 (NTSC) / 1.77 (PAL) MHz
CO-PROCESSOR GTIA (video), POKEY (sound, I/O), ANTIC (video)
RAM 64 KB (expandable to 128 KB)
ROM 24 KB
TEXT MODES five text modes, max: 40 x 24, min: 20 x 12
GRAPHIC MODES 16 graphic modes, maximum : 320 x 192
COLORS 256 (16 colors with 16 intensities)
SOUND 4 voices, 3.5 octaves
I/O PORTS Composite video output, cartridge slot, peripheral port (SIO), parallel bus, 2 joystick plugs

Atari chips:
atarihq.com/danb/AtariChips.shtml

Atari 8bit family on Wiki:
en.wikipedia.org/wiki/Atari_8-bit_family

4864 DRAM Data sheet:
datasheetspdf.com/datasheet/HM4864-2.html

Atari motherboards:
atarinside.com/blog/index.php/motherboards