Atari 400 User Manual

Atari BASIC Reference Gu ide 105
DATA (D.)
The DATA statement supplies a list of information that is used in
a
program through READ statements. A DATA statement can
includ e numeric values, string values, or both. String variables
must
have been dimensioned before being read.
Data items are separated by commas.
Therefore , string values
that contain commas
will be read as separate data items. For
example,
DATA DOE, JOHN is a DATA statement with two data
items.
However , DATA DOE. JOHN has only one item.
CONFIGURATION
DATA a[b 1...
a$ , b$J
Data must be read into the correct type of variable. A string
variable can accept data in any
form.
EXAMPLE
10 DIM A$(20)
20 FOR I = 1 TO 5
30 READ A$:? A$
40 NEXT I
50 DATA TOM c. , 25 ,, 3 + 4 * %,247
RUN
TOM C.
25
3 + 4 * %
247
The preceding example shows correct data for a string variable.
Notice the blank line in the output that c orresponds to the two
commas in a row. This is read as a string value with no characters
and l ength equal to zero.
If only 4 data items had been supplied with this program , the
message: ERROR-6 AT LINE 30 would have been displayed to

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)