Atari 400 User Manual

22 User's Handbook to the Atari 400/800 Computers
Save the 810's carton and packing material, should the unit need
to be moved or stored.
Before
installing the Atari 810 disk drive, be certain that the
power switches on both the Atari 810 and the computer are off .
The first step
in installing the Atari 810 is to plug one end of the
AC power adapter into a household outlet, and the other to the
Atari 810 console. This is shown in Illustration 2-2.
Illustration 2-2. Installing the Atari 810

Atari 400 Specifications

General

Manufacturer	Atari
Model	400
Type	Home Computer
Release Year	1979
CPU	MOS Technology 6502
CPU Speed	1.79 MHz
ROM	10 KB
Operating System	Atari OS
Keyboard	Membrane keyboard
RAM	8 KB (expandable to 48 KB)
Graphics	ANTIC and GTIA chips
Sound	4 channels
Display	RF output for connection to TV
Storage	Optional cassette tape drive or floppy disk drive
Ports	Cartridge
Display Resolution	320x192 (16 colors)