<s>
Sequent	B-Protocol
was	O
a	O
DikuMUD	B-Application
derivative	O
codebase	O
developed	O
by	O
Raja	O
Kushalnagar	O
(	O
"	O
Duke	O
of	O
Sequent	B-Protocol
"	O
)	O
.	O
</s>
<s>
It	O
was	O
a	O
text-based	O
online	O
role-playing	O
game	O
that	O
was	O
an	O
accessible	O
DikuMUD	B-Application
based	O
MUD	B-Application
.	O
</s>
<s>
It	O
also	O
supported	O
more	O
players	O
online	O
at	O
the	O
same	O
time	O
by	O
being	O
hosted	O
on	O
a	O
Sequent	B-Protocol
multi-processor	O
machine	O
at	O
the	O
University	O
of	O
California	O
,	O
Berkeley	O
,	O
and	O
was	O
first	O
started	O
in	O
March	O
1991	O
.	O
</s>
<s>
The	O
Sequent	B-Protocol
DikuMUD	B-Application
enhanced	O
both	O
the	O
codebase	O
and	O
database	O
of	O
the	O
DikuMUD	B-Application
Gamma	O
version	O
.	O
</s>
<s>
DikuMUD	B-Application
had	O
been	O
a	O
great	O
leveler	O
and	O
allowed	O
people	O
from	O
diverse	O
regions	O
to	O
connect	O
and	O
play	O
together	O
.	O
</s>
<s>
DikuMUD	B-Application
were	O
not	O
accessible	O
to	O
people	O
who	O
could	O
not	O
see	O
,	O
but	O
hear	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
an	O
avid	O
DikuMUD	B-Application
player	O
who	O
had	O
friends	O
with	O
visual	O
disabilities	O
at	O
University	O
of	O
California	O
at	O
Berkeley	O
,	O
enhanced	O
the	O
DikuMUD	B-Application
codebase	O
and	O
database	O
to	O
make	O
it	O
more	O
accessible	O
to	O
people	O
with	O
visual	O
and	O
aural	O
disabilities	O
.	O
</s>
<s>
This	O
DikuMUD	B-Application
,	O
called	O
Sequent	B-Protocol
,	O
improved	O
accessibility	O
in	O
by	O
creating	O
an	O
alternate	O
description	O
in	O
each	O
room	O
that	O
consisted	O
of	O
shorter	O
and	O
more	O
direct	O
descriptions	O
of	O
the	O
world	O
,	O
which	O
reduced	O
the	O
amount	O
of	O
text	O
by	O
about	O
half	O
.	O
</s>
<s>
This	O
approach	O
to	O
add	O
an	O
accessibility	O
option	O
to	O
condense	O
text	O
in	O
DikuMUD	B-Application
was	O
an	O
early	O
application	O
of	O
the	O
principle	O
of	O
separating	O
meaning	O
from	O
content	O
.	O
</s>
<s>
This	O
follows	O
HTML	B-Language
principles	O
,	O
which	O
strive	O
to	O
encode	O
meaning	O
rather	O
than	O
appearance	O
.	O
</s>
<s>
Some	O
newer	O
MUDs	B-Application
such	O
as	O
Materia	O
Magica	O
have	O
adopted	O
a	O
new	O
approach	O
to	O
double	O
the	O
bandwidth	O
,	O
which	O
provides	O
functional	O
equivalence	O
between	O
visually	O
disabled	O
and	O
sighted	O
players	O
by	O
using	O
two	O
screen	O
readers	O
.	O
</s>
<s>
The	O
codebase	O
also	O
included	O
an	O
option	O
to	O
spread	O
client	O
connections	O
among	O
multiple	O
processors	O
on	O
the	O
Sequent	B-Protocol
multiprocessor	O
system	O
and	O
to	O
run	O
simultaneously	O
on	O
multiple	O
processors	O
on	O
a	O
Sequent	B-Protocol
server	O
.	O
</s>
<s>
Notable	O
MUDs	B-Application
running	O
on	O
the	O
Sequent	B-Protocol
codebase	O
include	O
Sojourn	O
and	O
its	O
successor	O
,	O
TorilMUD	B-Protocol
.	O
</s>
