Atari 800 User Manual

CHAPTER 8.
AJARI PRINTERS
Introduction
In this chapter , we will concentrate on sending output to the
three Atari printers; the Atari 820 Printer, the Atari 822 Printer,
and
the Atari 825 Printer.
The process
of outputting numbers and text differs only slightly
between these three printers. However , the Atari 825 has several
programmable features not available on the Atari 820 and 822.
These will be described at the end of this chapter.
Another difference between the three Atari printers lies in the
width of the lines they output. The Atari 820 and 822 output 40
column lines. This is the same output width as the video display.
On the other hand, the Atari 825 generally uses a line width of 80
columns.
One final difference lies in the way in which these three printers
are
connected to the Atari computer. The Atari 820 and 822 are
connected
to the Atari computer via the serial 1/ 0 port. The
Atari
825 printer is connected to the Atari 400 or 800 via the Atari
850 Interface module.
BASIC STATEMENTS FOR PRINTER OUTPUT
Sending output to the printer is generally much the same as
sending output to the screen. In the following sections, we will
discuss the procedures to output data to the printer.
LIST "P:"
When used with the printer 's device name (P:) , the LIST
statement will output the BASIC program currently in memory

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