Atari 800 User Manual

Installation and Operation of Atari Computers 27
4. Turn on the Atari 400 or 800 console unit.
5. Turn on the printer when you wish to use it. Remember, if
you are using the 825 printer, the 850 Interface module
must also be turned on .
Unless the preceding power-on procedure is followed, the Atari
may not be able to interact with some of the system components.
Step 1. Turning on the Television
First of all, turn on the television set or monitor, whichever your
system is using. If you are using a monitor, you can skip the
remainder of Step 1 and proceed to Step 2.
If you are using a television set, first of all be certain that the
switch that is connected to your television's antenna terminal is
set to computer. Tune in your set to channel2 or 3, whichever is
weaker in your area.
The Atari
computer must be set to broadcast on the same
channel that the television is tuned to . This is accomplished with
the switch on the side of the Atari (see Illustration 1-2). Set this
switch
so that it corresponds to the television channe l used (2 or
3).
Step 2. Turning on the Disk Drive
If your system does not include a disk drive or if the disk drive
will not be used, you need not turn it on and can skip to Step 3.
If the disk drive is to be used, turn on drive 1. When turned on
the drive will emit whirring and clicking sounds for a few
seconds, and the light s on its front panel will light. The sounds
will soon stop, and al l lamps except for the power l amp will go
off.
If your Atari system contains more than 1 drive, only drive 1
needs
to be turned on atthis point. Byexaminingtheaccess hole
in the back of the 810 drive (see Illustration 2-5), the user can
determine which is drive 1.

Atari 800 Specifications

General

Processor	MOS Technology 6502
Processor Speed	1.79 MHz
ROM	10 KB
Graphics	ANTIC and GTIA chips
Release Year	1979
Display Resolution	up to 320 x 192
Colors	128 colors
Sound	4 channels
Storage	Cartridge, cassette, floppy disk
Ports	Cartridge, serial, monitor
Operating System	Atari OS