Atari 800 User Manual

214 Use r's Hand b oo k to the Ata ri 400/ 8 00 Com pu te rs
Fil ename match characters are not al lowe d in Ata ri DO S ve rsion
1.0, and ca n o nly be used w ith th e foll ow i ng DO S me nu op ti ons
in DOS version 2. 0.
A. Disk Dir ectory
B. Copy Fil e
D. Delete Fil e
E. Rename Fil e
F. L oc k Fil e
G. Unl ock Fil e
O .
Dupli ca te Fil e
Table 7-1. Filename Ext ensions & Type of File
Filename
Extension
File Type
ASM
Asse mbl y language so urc e fil e.
BAK
Bac kup Fil e.
BAS
Fil e co nt a inin g a Ba sic program
in tokenized forma t.
DAT
Data Fil e.
OB]
Asse mb ly language pr og ram
asse mbl ed int o mac hin e language.
Al
so kno wn as an ob ject fil e.
TXT Text Fil e.
SY S
Sys tem fil e. U sed wit h sys tem pr o-
grams such as DO S pr ograms or the
BAS IC language int e rpr eter.

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