<s>
The	O
DOS	B-Operating_System
Wedge	I-Operating_System
is	O
a	O
piece	O
of	O
Commodore	O
64	O
system	B-Application
software	I-Application
that	O
was	O
popular	O
in	O
its	O
time	O
.	O
</s>
<s>
It	O
was	O
written	O
by	O
Bob	O
Fairbairn	O
,	O
and	O
was	O
included	O
by	O
Commodore	O
(	O
CBM	O
)	O
on	O
the	O
1541	B-Device
disk	I-Device
drive	I-Device
Test/Demo	O
Disk	O
(	O
filename	O
:	O
"	O
DOS	B-Operating_System
5.1	I-Operating_System
"	O
)	O
and	O
also	O
packaged	O
with	O
the	O
C64	O
Macro	O
Assembler	B-Language
(	O
filename	O
:	O
"	O
DOS	O
WEDGE64	O
"	O
)	O
.	O
</s>
<s>
The	O
DOS	B-Operating_System
Wedge	I-Operating_System
was	O
referred	O
to	O
in	O
the	O
1541	O
drive	O
manual	O
as	O
DOS	B-Operating_System
Support	I-Operating_System
and	O
on	O
the	O
software	O
startup	O
screen	O
as	O
DOS	O
MANAGER	O
.	O
</s>
<s>
The	O
Wedge	O
made	O
disk	B-Device
operations	I-Device
in	O
BASIC	B-Language
2.0	I-Language
significantly	O
easier	O
by	O
introducing	O
several	O
keyword	O
shortcuts	O
.	O
</s>
<s>
The	O
DOS	B-Operating_System
Wedge	I-Operating_System
became	O
somewhat	O
of	O
a	O
de	O
facto	O
standard	O
,	O
with	O
third-party	O
vendors	O
such	O
as	O
Epyx	O
often	O
incorporating	O
identical	O
commands	O
into	O
fastloader	O
cartridges	O
and	O
other	O
Commodore	O
64	O
expansion	O
devices	O
.	O
</s>
<s>
'	O
s	O
Gazette	O
published	O
several	O
type-in	O
variations	O
on	O
the	O
DOS	B-Operating_System
Wedge	I-Operating_System
,	O
including	O
a	O
C128	B-Device
version	O
in	O
its	O
February	O
1987	O
issue	O
(	O
see	O
External	O
links	O
,	O
below	O
)	O
.	O
</s>
<s>
The	O
original	O
Commodore	B-Device
DOS	I-Device
Wedge	O
was	O
a	O
1-KB	O
program	O
written	O
in	O
MOS	B-General_Concept
6502	I-General_Concept
assembly	B-Language
language	I-Language
.	O
</s>
