<s>
In	O
the	O
early	O
history	O
of	O
computers	O
,	O
devices	O
such	O
as	O
Digital	O
Equipment	O
Corporation	O
's	O
PDP-7	B-Device
minicomputer	O
(	O
created	O
in	O
1964	O
)	O
was	O
noted	O
for	O
having	O
a	O
wealth	O
of	O
features	O
,	O
such	O
as	O
being	O
the	O
first	O
version	O
of	O
the	O
PDP	O
minicomputer	O
series	O
to	O
use	O
wire	O
wrap	O
,	O
as	O
well	O
as	O
being	O
the	O
first	O
to	O
use	O
the	O
proprietary	O
DEC	O
Flip-Chip	B-Device
module	I-Device
which	O
was	O
invented	O
in	O
the	O
same	O
year	O
.	O
</s>
<s>
The	O
Python	B-Language
programming	I-Language
language	I-Language
is	O
well-known	O
for	O
its	O
feature	O
of	O
using	O
whitespace	O
characters	O
such	O
as	O
spaces	O
and	O
tabs	O
instead	O
of	O
curly	O
braces	O
to	O
indicate	O
different	O
blocks	O
of	O
code	O
.	O
</s>
<s>
Another	O
similar	O
high-level	O
,	O
object	O
oriented	O
programming	O
language	O
,	O
Ruby	B-Language
,	O
is	O
noteworthy	O
for	O
using	O
the	O
symbols	O
"	O
@	O
"	O
and	O
"	O
$	O
"	O
to	O
highlight	O
different	O
variable	O
scopes	O
,	O
which	O
the	O
developers	O
claim	O
improves	O
code	O
readability	O
.	O
</s>
<s>
In	O
the	O
context	O
of	O
end-user	O
software	O
,	O
the	O
terminal	B-Application
emulator	I-Application
xterm	B-Language
also	O
has	O
a	O
significant	O
quantity	O
of	O
notable	O
features	O
,	O
including	O
compatibility	O
with	O
the	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
,	O
the	O
ability	O
to	O
emulate	O
a	O
VT220	O
and	O
VT320	O
terminal	O
with	O
ANSI	O
color	O
,	O
and	O
the	O
ability	O
to	O
input	O
escape	O
sequences	O
using	O
a	O
computer	B-Device
mouse	I-Device
or	O
other	O
similar	O
device	O
,	O
and	O
the	O
ability	O
to	O
run	O
on	O
multiple	O
different	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
(	O
e.g.	O
</s>
<s>
Linux	B-Application
,	O
AIX	B-Application
,	O
BSD	B-Operating_System
,	O
and	O
HP-UX	B-Application
)	O
.	O
</s>
<s>
A	O
piece	O
of	O
software	O
is	O
said	O
to	O
be	O
"	O
feature-rich	B-Architecture
"	O
when	O
it	O
has	O
many	O
options	O
and	O
functional	O
capabilities	O
available	O
to	O
the	O
user	O
.	O
</s>
<s>
One	O
popular	O
mechanism	O
for	O
introduction	O
feature-rich	B-Architecture
software	O
to	O
the	O
user	O
is	O
the	O
concept	O
of	O
progressive	B-General_Concept
disclosure	I-General_Concept
,	O
a	O
technique	O
where	O
features	O
are	O
introduced	O
gradually	O
as	O
they	O
become	O
required	O
,	O
to	O
reduce	O
the	O
potential	O
confusion	O
caused	O
by	O
displaying	O
a	O
wealth	O
of	O
features	O
at	O
once	O
.	O
</s>
<s>
In	O
some	O
cases	O
,	O
a	O
piece	O
of	O
software	O
being	O
feature-rich	B-Architecture
can	O
be	O
considered	O
a	O
negative	O
attribute	O
.	O
</s>
<s>
The	O
terms	O
feature	O
creep	O
,	O
software	O
bloat	O
,	O
and	O
featuritis	O
(	O
a	O
reference	O
to	O
the	O
common	O
usage	O
of	O
the	O
suffix	O
-itis	O
to	O
refer	O
to	O
an	O
inflammatory	O
disease	O
)	O
can	O
be	O
used	O
to	O
refer	O
to	O
software	O
that	O
is	O
overly	O
feature-rich	B-Architecture
.	O
</s>
<s>
In	O
order	O
to	O
counteract	O
the	O
tendency	O
of	O
software	O
developers	O
to	O
add	O
additional	O
,	O
unnecessary	O
features	O
,	O
the	B-Operating_System
Unix	I-Operating_System
philosophy	I-Operating_System
was	O
developed	O
in	O
the	O
1970s	O
by	O
Bell	O
Labs	O
employees	O
who	O
were	O
working	O
on	O
the	O
Unix	B-Application
operating	I-Application
system	I-Application
such	O
as	O
Ken	O
Thompson	O
and	O
Dennis	O
Ritchie	O
.	O
</s>
<s>
The	B-Operating_System
Unix	I-Operating_System
philosophy	I-Operating_System
can	O
be	O
summarized	O
as	O
stating	O
that	O
software	O
programs	O
should	O
generally	O
only	O
complete	O
one	O
primary	O
task	O
and	O
that	O
"	O
small	O
is	O
beautiful	O
"	O
.	O
</s>
