Atari 400 User Manual

12 User's Handbook to the Atari 400/800 Computers
switch box is not necessary. This connection can be
accomplished by attaching the 5- pin plug into the socket on the
side of the Atari 800 . This is shown in Illustration 1-4.
Regardless
of whether a television set or a monitor is being
connected to the Atari, several different modes of display are
available.
One of these is the monochromatic text mode. This
mode is used to display one color plus white (ex. black and
white, blue and white, etc.). In the monochromatic text mode ,
the screen is divided into 24 lines of 40 characters each. Two
other modes are available for displaying text in up to four
different colors. Other modes are available for displaying
graphics. These
will be discussed in detail in Chapter 9.
Illustration 1-3. Atari/Television Set Hook-Up

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)