Atari 400 User Manual

Advanced Atari BASIC 81
Decimal
Code
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Table 4-2. Atari Graphics Characters
ASCII Decimal ASCII
Character Keystrokes Code
Character
!tJ
CTRL-, 15
[;]
[J]
CTRL-A
16
~
01
CTRL-B 17
GI
~
CTRL-C 18
8
[{]
CTRL-D 19
I±l
~
CTRL-E 20
Ii]
~
CTRL-F 21
[;J
IS]
CTRL-G 22
ID
[j]
CTRL-H 23
I;]
~
CTRL-I
24
~
[i] CTRL-J
25
[j]
~
CTRL-K 26
~
~
CTRL-L
96
[t]
!::l
CTRL-M 123
[t]
[;]
CTRL-N
100 DIM A$(20)
200 A$ = "1--. --1"*
300 PRINT A$:PRINT A$:PRINT A$
400 END
Keystrokes
CTRL-O
CTRL-P
CTRL-Q
CTRL-R
CTRL-S
CTRL-T
CTRL-U
CTRL-V
CTRL-W
CTRL-X
CTRL-Y
CTRL-Z
CTRL-.
CTRL-;
would result in a display similar to that shown in Illustration 4-1
when it is run .
* • --is generated by pressing Ctrl-,

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)