<s>
The	O
Zire	B-Application
Series	O
was	O
Palm	O
,	O
Inc	O
's	O
"	O
consumer-grade	O
"	O
brand	O
of	O
Personal	B-Application
Digital	I-Application
Assistant	I-Application
.	O
</s>
<s>
The	O
lower-end	O
models	O
emphasized	O
value	O
—	O
Palm	O
's	O
original	O
Zire	B-Application
model	O
was	O
the	O
first	O
PDA	B-Application
under	O
$100	O
from	O
a	O
major	O
manufacturer	O
—	O
and	O
the	O
higher-end	O
models	O
emphasized	O
multimedia	O
capability	O
,	O
including	O
features	O
like	O
cameras	O
and	O
audio	O
playback	O
functions	O
suitable	O
for	O
listening	O
to	O
MP3s	B-Application
.	O
</s>
<s>
The	O
Palm	B-Application
Zire	I-Application
and	O
Palm	B-Application
Zire	I-Application
21	O
were	O
inexpensive	O
and	O
are	O
differentiated	O
from	O
the	O
rest	O
of	O
Palm	O
's	O
line	O
by	O
having	O
monochrome	O
screens	O
without	O
backlighting	O
,	O
having	O
only	O
two	O
application	O
buttons	O
instead	O
of	O
the	O
typical	O
four	O
,	O
and	O
traditional	O
up/down	O
scroll	O
buttons	O
instead	O
of	O
the	O
then-standard	O
5-way	O
navigator	O
found	O
in	O
other	O
models	O
.	O
</s>
<s>
The	O
Zire	B-Application
(	O
also	O
known	O
as	O
the	O
m150	O
)	O
,	O
released	O
in	O
the	O
fourth	O
quarter	O
of	O
2002	O
and	O
is	O
the	O
handheld	O
responsible	O
for	O
starting	O
the	O
value-conscious	O
handheld	O
craze	O
.	O
</s>
<s>
It	O
sported	O
only	O
2MB	O
RAM	O
,	O
a	O
16MHz	O
Motorola	B-Device
DragonBall	I-Device
EZ	I-Device
processor	O
,	O
and	O
Palm	O
OS	O
4.1.x	O
.	O
</s>
<s>
The	O
Zire	B-Application
was	O
superseded	O
by	O
the	O
Zire	B-Application
21	I-Application
at	O
the	O
release	O
of	O
the	O
"	O
First	O
Breed	O
of	O
PIM	O
Plus	O
Handhelds	O
"	O
in	O
the	O
fourth	O
quarter	O
of	O
2003	O
.	O
</s>
<s>
The	O
Zire	B-Application
21	I-Application
,	O
released	O
at	O
the	O
same	O
time	O
as	O
the	O
Tungsten	B-Application
T3	O
and	O
Tungsten	B-Application
E	I-Application
,	O
sported	O
an	O
improved	O
PIM	O
suite	O
(	O
then-known	O
as	O
the	O
Palm	O
PIM	O
Plus	O
)	O
,	O
a	O
126MHz	O
TI	O
OMAP311	O
ARM-Compliant	O
Processor	O
,	O
8MB	O
RAM	O
,	O
and	O
Palm	O
OS	O
5.2.1	O
.	O
</s>
<s>
Neither	O
the	O
Zire	B-Application
nor	O
the	O
Zire	B-Application
21	I-Application
had	O
SD/SDIO/MMC	O
expansion	O
,	O
which	O
caused	O
the	O
devices	O
to	O
be	O
shunned	O
by	O
handheld	O
aficionados	O
.	O
</s>
<s>
As	O
of	O
August	O
2005	O
,	O
both	O
of	O
these	O
handhelds	O
had	O
been	O
discontinued	O
,	O
making	O
the	O
Palm	B-Application
Zire	I-Application
31	O
the	O
entry-level	O
Palm-branded	O
PDA	B-Application
citing	O
a	O
strong	O
demand	O
for	O
color	O
.	O
</s>
<s>
The	O
Zire	B-Application
21	I-Application
was	O
capable	O
of	O
displaying	O
PDF	O
files	O
using	O
the	O
free	O
Adobe	O
Reader	O
for	O
Palm	O
OS	O
version	O
3	O
.	O
</s>
<s>
The	O
Palm	B-Application
Zire	I-Application
31	O
was	O
a	O
budget	O
multimedia-oriented	O
device	O
.	O
</s>
<s>
The	O
Zire	B-Application
31	O
had	O
twice	O
the	O
RAM	O
of	O
the	O
Zire	B-Application
21	I-Application
(	O
16MB	O
,	O
13.8MB	O
usable	O
)	O
,	O
a	O
200MHz	O
Intel	O
XScale	O
PXA255	O
processor	O
,	O
an	O
SD/SDIO/MMC	O
expansion	O
slot	O
,	O
Palm	O
OS	O
5.2.8	O
,	O
a	O
3.5mm	O
stereo	O
headphone	O
jack	O
and	O
a	O
5-way	O
navigator	O
,	O
though	O
the	O
Zire	B-Application
31	O
still	O
retained	O
the	O
two	O
application	O
buttons	O
,	O
as	O
opposed	O
to	O
the	O
standard	O
four	O
on	O
most	O
other	O
models	O
.	O
</s>
<s>
The	O
ROM	B-Device
included	O
RealOne	O
Player	O
giving	O
the	O
device	O
some	O
digital	O
audio	O
player	O
capabilities	O
and	O
a	O
photo	O
album	O
application	O
.	O
</s>
<s>
It	O
did	O
n't	O
have	O
a	O
direct	O
successor	O
—	O
the	O
newer	O
Palm	O
Z22	O
was	O
more	O
akin	O
to	O
the	O
Zire	B-Application
21	I-Application
,	O
albeit	O
having	O
the	O
same	O
160×160	O
pixel	O
CSTN	B-General_Concept
4096-color	O
display	O
as	O
the	O
Zire	B-Application
31	O
.	O
</s>
<s>
While	O
Zire	B-Application
31	O
had	O
the	O
ability	O
to	O
play	O
video	O
(	O
video	O
player	O
not	O
included	O
)	O
,	O
the	O
experience	O
was	O
limited	O
by	O
the	O
maximum	O
SD/MMC	O
card	O
size	O
limit	O
(	O
1GB	O
,	O
larger	O
cards	O
including	O
SDHC	O
are	O
possible	O
via	O
3rd	O
party	O
software	O
)	O
,	O
the	O
poor	O
screen	O
resolution	O
,	O
color	O
depth	O
and	O
passive	B-General_Concept
matrix	I-General_Concept
display	I-General_Concept
technology	O
.	O
</s>
<s>
The	O
Z22	O
was	O
a	O
successor	O
of	O
Zire	B-Application
21	I-Application
,	O
but	O
the	O
"	O
Zire	B-Application
"	O
moniker	O
was	O
dropped	O
.	O
</s>
<s>
It	O
had	O
a	O
CSTN	B-General_Concept
4096	O
color	O
160×160	O
display	O
and	O
featured	O
32MB	O
NVRAM	B-General_Concept
(	O
20MB	O
available	O
to	O
user	O
)	O
using	O
NVFS	B-Operating_System
,	O
a	O
Samsung	O
200MHz	O
processor	O
,	O
and	O
Palm	O
OS	O
Garnet	O
5.4	O
operating	O
system	O
.	O
</s>
<s>
The	O
Palm	B-Application
Zire	I-Application
71	O
was	O
Palm	O
's	O
first	O
attempt	O
at	O
a	O
PDA	B-Application
with	O
a	O
built-in	O
digital	B-Device
camera	I-Device
.	O
</s>
<s>
At	O
the	O
time	O
of	O
its	O
release	O
,	O
the	O
Zire	B-Application
71	I-Application
was	O
the	O
highest-end	O
model	O
in	O
the	O
Zire	B-Application
line	O
,	O
sporting	O
a	O
144MHz	O
TI	O
OMAP310	O
processor	O
,	O
16MB	O
of	O
RAM	O
(	O
13MB	O
usable	O
)	O
,	O
320×320	O
TFT	O
16-Bit	O
color	O
screen	O
,	O
Palm	O
OS	O
5.2.1	O
,	O
and	O
a	O
VGA-quality	O
camera	O
(	O
300K	O
pixel	O
with	O
640×480	O
support	O
)	O
.	O
</s>
<s>
Audio	O
playback	O
capability	O
was	O
possible	O
with	O
the	O
inclusion	O
of	O
a	O
SD	B-Device
card	I-Device
slot	O
and	O
a	O
Palm	O
version	O
of	O
RealPlayer	O
.	O
</s>
<s>
To	O
counter	O
the	O
slow	O
file	O
transfer	O
rate	O
for	O
uploading	O
songs	O
to	O
the	O
device	O
,	O
Palm	O
offered	O
an	O
MP3	B-Application
playback	O
kit	O
that	O
included	O
a	O
memory	O
card	O
writer	O
.	O
</s>
<s>
Its	O
introduction	O
price	O
was	O
$299	O
,	O
but	O
later	O
was	O
reduced	O
to	O
$249	O
shortly	O
before	O
it	O
was	O
replaced	O
by	O
the	O
Zire	B-Application
72	I-Application
.	O
</s>
<s>
The	O
Zire	B-Application
71	I-Application
did	O
not	O
ship	O
with	O
any	O
wireless	O
capabilities	O
other	O
than	O
its	O
infrared	O
port	O
.	O
</s>
<s>
Wi-Fi	O
capability	O
could	O
be	O
added	O
to	O
the	O
Zire	B-Application
71	I-Application
via	O
the	O
SD	B-Device
slot	I-Device
.	O
</s>
<s>
Only	O
one	O
Wi-Fi/SD	O
card	O
,	O
SanDisk	O
model	O
SDWSDB-000-A10M	O
,	O
was	O
reported	O
to	O
work	O
with	O
Zire	B-Application
71	I-Application
.	O
</s>
<s>
Reviewers	O
were	O
impressed	O
by	O
the	O
excellent	O
quality	O
of	O
its	O
LCD	B-Device
and	O
the	O
comparatively	O
good	O
quality	O
of	O
its	O
camera	O
relative	O
to	O
similar	O
generation	O
VGA	O
digital	B-Device
cameras	I-Device
.	O
</s>
<s>
Certain	O
users	O
found	O
issues	O
with	O
the	O
sensitivity	O
of	O
the	O
device	O
's	O
joystick	O
,	O
which	O
on	O
certain	O
devices	O
was	O
prone	O
to	O
powering	O
up	O
the	O
PDA	B-Application
inside	O
pockets	O
,	O
bags	O
,	O
and	O
other	O
containers	O
,	O
thus	O
draining	O
the	O
batteries	O
.	O
</s>
<s>
Alternatively	O
,	O
one	O
could	O
simply	O
lessen	O
the	O
frequency	O
of	O
this	O
occurring	O
by	O
inserting	O
the	O
PDA	B-Application
into	O
its	O
case	O
top	O
first	O
(	O
so	O
that	O
the	O
joystick	O
is	O
at	O
the	O
wider	O
end	O
of	O
the	O
pocket	O
)	O
.	O
</s>
<s>
The	O
Palm	B-Application
Zire	I-Application
72	I-Application
was	O
the	O
successor	O
to	O
the	O
Palm	B-Application
Zire	I-Application
71	O
.	O
</s>
<s>
New	O
features	O
included	O
Bluetooth	B-Protocol
,	O
voice	O
recording	O
,	O
and	O
video	O
capture	O
with	O
sound	O
.	O
</s>
<s>
The	O
joystick	O
was	O
replaced	O
with	O
the	O
standard	O
5-way	O
navigator	O
similar	O
to	O
that	O
of	O
the	O
Tungsten	B-Application
models	O
,	O
and	O
the	O
camera	O
was	O
upgraded	O
from	O
0.3	O
to	O
1.2-megapixels	O
.	O
</s>
<s>
The	O
Zire	B-Application
72	I-Application
had	O
32MB	O
of	O
RAM	O
(	O
25MB	O
usable	O
)	O
instead	O
of	O
16MB	O
,	O
a	O
312MHz	O
Intel	O
PXA270	O
Processor	O
instead	O
of	O
the	O
previous	O
TI	B-Device
OMAP	I-Device
Processor	O
,	O
and	O
weighed	O
4.8oz	O
as	O
opposed	O
to	O
5.3oz	O
for	O
the	O
Zire	B-Application
71	I-Application
.	O
</s>
<s>
The	O
Zire	B-Application
72	I-Application
was	O
available	O
in	O
two	O
models	O
.	O
</s>
<s>
The	O
standard	O
Zire	B-Application
72	I-Application
had	O
a	O
bright	O
blue	O
painted	O
body	O
with	O
a	O
silver	O
back	O
.	O
</s>
<s>
The	O
Zire	B-Application
72	I-Application
Special	O
Edition	O
was	O
an	O
all-silver	O
model	O
.	O
</s>
<s>
The	O
Zire	B-Application
72	I-Application
,	O
while	O
it	O
had	O
more	O
features	O
than	O
the	O
Zire	B-Application
71	I-Application
,	O
was	O
hit	O
with	O
a	O
lot	O
of	O
criticism	O
over	O
time	O
.	O
</s>
<s>
The	O
screen	O
quality	O
,	O
while	O
good	O
,	O
was	O
not	O
as	O
brilliant	O
as	O
the	O
Palm	B-Application
Zire	I-Application
71	O
.	O
</s>
