Atari 400 Basic Reference Manual

ERROR
CODE NO.
143
144
145
146
147
160
161
162
163
164
165
166
167
168
169
170
171
ERROR CODE MESSAGE
Serial bus data frame checksum error.
Device done error (invalid " done" byte): Attempt to write on a write-protected
diskette.
Read after write compare error (disk handler) or bad screen mode handler.
Function not implemented in handler.
Insufficient RAM for operating selected graphics mode.
Drive number error.
Too many OPEN files (no sector buffer available).
Disk full (no free sectors).
Unrecoverable system data I/0 error.
File number mismatch: Links on disk are messed up .
File name error.
POINT data length error.
File locked.
Command invalid (special operation code).
Directory full (64 files).
File not found.
POINT invalid.
Append£); B-3

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)