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Atari 800
 

Prior to production, the 800 was known inside Atari as code name "Colleen." It is rumored that Colleen and Candy (the Atari 400 code name) were actually secretaries at Atari.

Model	Atari 800
Processor	MOS Technology 6502	1.79MHz (NTSC) 1.77MHz (PAL)
Custom LSI Chips	ANTIC	Microprocessor dedicated to the television display. It retieves the diplay list and display data from RAM using direct memory access (DMA). It processes the higher level instructions in the display list and translates these instructions into a real-time stream of simple instructions to GTIA.
	GTIA (CTIA in very early models)	A television interface chip. Converts the digital commands from ANTIC (or the 6502 directly) into the signal that goes to the television. GTIA also adds color values, player-missle graphics, and collision detection.
	POKEY	Digital I/O chip. Handles the serial I/O bus, audio generation, keyboard scan, and random number generation. Also digitizes the resistive paddle inputs and controls maskable interrupt (IRQ) requests from peripherals.
	PIA	(not sure)
Memory	8K / 48K RAM 10K ROM	The very first Atari 800 Computers shipped with 8 or 16K memory, expandable to 48K. After initial release, the 800 came standard with 48K memory.
Operating System	400/800 OS	(In ROM)
Interfaces	(2) Cartridge Slots	8K address space
	(4) Joystick (serial) Ports	9-pin D-Type
	Atari Serial I/O (SIO)
	RF Interface
	RGB Interface
Sound	4 channels	3.5 octaves each channel
Keyboard	62 keys	Full Stroke (typewriter-style)
Function Keys	Reset, Option, Select, Start
Announced	1979	Exact date unknown
Released	1979	Exact date unknown

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