<s>
The	O
PowerBook	B-Device
150	I-Device
is	O
a	O
laptop	B-Device
personal	B-Device
computer	I-Device
created	O
by	O
Apple	O
Computer	O
which	O
was	O
introduced	O
on	O
July	O
13	O
,	O
1994	O
,	O
and	O
released	O
on	O
July	O
18	O
,	O
1994	O
.	O
</s>
<s>
It	O
was	O
the	O
last	O
member	O
of	O
the	O
PowerBook	B-Device
100	I-Device
series	I-Device
to	O
use	O
the	O
original	O
case	O
design	O
,	O
the	O
most	O
affordable	O
of	O
the	O
series	O
when	O
introduced	O
(	O
priced	O
between	O
$	O
1,450	O
and	O
$	O
1,600	O
)	O
and	O
also	O
the	O
last	O
consumer	O
model	O
.	O
</s>
<s>
It	O
was	O
8MHz	O
faster	O
than	O
its	O
predecessor	O
,	O
the	O
PowerBook	B-Device
145B	O
.	O
</s>
<s>
It	O
lacked	O
an	O
ADB	B-Device
port	I-Device
and	O
used	O
a	O
lower-quality	O
passive	B-Device
matrix	I-Device
display	O
than	O
other	O
contemporary	O
offerings	O
,	O
both	O
to	O
reduce	O
the	O
price	O
.	O
</s>
<s>
Like	O
the	O
Duos	O
and	O
the	O
PowerBook	B-Device
100	I-Device
before	O
it	O
,	O
the	O
150	O
only	O
had	O
a	O
single	O
serial	O
printer	O
port	O
,	O
however	O
,	O
a	O
third-party	O
adapter	O
was	O
available	O
for	O
use	O
in	O
the	O
optional	O
modem	O
slot	O
.	O
</s>
<s>
One	O
interesting	O
improvement	O
was	O
the	O
display	O
's	O
resolution	O
of	O
640x480	O
-	O
an	O
increase	O
from	O
the	O
earlier	O
PowerBook	B-Device
resolution	O
of	O
640x400	O
,	O
and	O
more	O
in	O
line	O
with	O
standard	O
desktop	O
monitors	O
of	O
the	O
time	O
.	O
</s>
<s>
Though	O
it	O
used	O
the	O
140	O
case	O
design	O
,	O
its	O
internals	O
were	O
based	O
on	O
the	O
PowerBook	B-Device
Duo	I-Device
230	I-Device
and	O
actually	O
more	O
similar	O
to	O
the	O
features	O
of	O
the	O
PowerBook	B-Device
190	I-Device
(	O
which	O
used	O
the	O
PowerBook	B-Device
5300	I-Device
's	O
case	O
design	O
)	O
.	O
</s>
<s>
Notably	O
,	O
this	O
new	O
logicboard	O
design	O
allowed	O
this	O
100	B-Device
series	I-Device
PowerBook	B-Device
to	O
use	O
more	O
than	O
14MB	O
RAM	O
for	O
the	O
first	O
time	O
.	O
</s>
<s>
It	O
was	O
also	O
the	O
first	O
of	O
the	O
100	B-Device
series	I-Device
to	O
include	O
a	O
lithium-ion	O
backup	O
battery	O
to	O
preserve	O
RAM	O
contents	O
when	O
the	O
battery	O
is	O
replaced	O
,	O
as	O
well	O
as	O
the	O
first	O
Macintosh	O
ever	O
to	O
use	O
less	O
expensive	O
and	O
larger	O
IDE	B-Protocol
drives	I-Protocol
(	O
formatting	O
required	O
a	O
unique	O
software	O
application	O
limiting	O
the	O
selection	O
of	O
compatible	O
drives	O
)	O
.	O
</s>
<s>
This	O
was	O
the	O
last	O
PowerBook	B-Device
model	O
to	O
include	O
a	O
trackball	O
.	O
</s>
<s>
Like	O
the	O
145B	O
it	O
replaced	O
,	O
the	O
150	O
could	O
not	O
be	O
used	O
in	O
SCSI	O
Disk	O
Mode	O
,	O
unlike	O
the	O
Duo	O
,	O
190	O
and	O
5300	O
which	O
had	O
HD	B-Device
Target	I-Device
Mode	I-Device
implemented	O
.	O
</s>
