Atari 400 User Manual

Atari BASIC Reference Guide 161
uses the display is executed .
A
POSITION statement does not affect the DRAWTO, PLOT, or
XIO functions . These operations maintain a separate cursor
location .
EXAMPLE
10 GRAPHICS 0
20 POSITION 5, 4
30 PRINT EXP(1)
The previous example contains a program that uses a POSITION
statement. The GRAPHICS 0 statement causes the display to be
cleared. Line 20 moves the cursor to column number 5 and row
number 4. Line 30 prints the output on the screen at the position
of the cursor. As a result, the value 2.71828179 is displayed four
lines from the top of the display and 5 columns from the left
margin.
PRINT (PR. or ?)
The PRINT statement is generally used to display characters on
the screen, but a PRINT statement can be used to output
characters to any output device .
CONFIGURATION
PRINT[#a;) [expressionJ[ ~ ) ...
,
The PRINT statement can include numeric variable names and
string variable names, as well as string and numeric
constants. String constants must appear in quotation marks.
Items within a PRINT statement must be separated by a comma
or a semicolon. A semicolon causes the values to be printed on
the same line, without any spaces between items. A comma
causes the next item to be printed at the next column stop
location.

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)