<s>
A	O
software	B-Architecture
bus	I-Architecture
is	O
a	O
software	B-Architecture
architecture	I-Architecture
model	O
where	O
a	O
shared	O
communication	O
channel	O
facilitates	O
connections	O
and	O
communication	O
between	O
software	O
modules	O
.	O
</s>
<s>
This	O
makes	O
software	O
buses	O
conceptually	O
similar	O
to	O
the	O
bus	B-General_Concept
term	O
used	O
in	O
computer	B-Architecture
hardware	I-Architecture
for	O
interconnecting	O
pathways	O
.	O
</s>
<s>
In	O
the	O
early	O
microcomputer	O
era	O
of	O
the	O
1970s	O
,	O
Digital	O
Research	O
's	O
operating	O
system	O
CP/M	B-Application
was	O
often	O
described	O
as	O
a	O
software	B-Architecture
bus	I-Architecture
.	O
</s>
<s>
Lifeboat	O
Associates	O
,	O
an	O
early	O
distributor	O
of	O
CP/M	B-Application
and	O
later	O
of	O
MS-DOS	B-Application
software	O
,	O
had	O
a	O
whole	O
product	O
line	O
named	O
Software	B-Architecture
Bus	I-Architecture
.	O
</s>
<s>
D-Bus	B-Language
is	O
used	O
in	O
many	O
modern	O
desktop	O
environments	O
to	O
allow	O
multiple	O
processes	O
to	O
communicate	O
with	O
one	O
another	O
.	O
</s>
<s>
Lifeboat	O
Associates	O
Software	O
Bus-86	O
aka	O
SB-86	B-Operating_System
,	O
a	O
version	O
of	O
MS-DOS	B-Application
for	O
x86	B-Operating_System
16-bit	O
computers	O
.	O
</s>
<s>
Component	B-Application
Object	I-Application
Model	I-Application
for	O
in-process	O
and	O
interprocess	O
communication	O
.	O
</s>
<s>
D-Bus	B-Language
for	O
interprocess	O
communication	O
.	O
</s>
<s>
Enterprise	B-Application
service	I-Application
bus	I-Application
for	O
distributed	O
communication	O
.	O
</s>
