<s>
The	O
Sharp	B-Device
PC-1401	I-Device
is	O
a	O
small	O
pocket	O
computer	O
manufactured	O
by	O
Sharp	O
.	O
</s>
<s>
It	O
was	O
introduced	O
in	O
1983	O
and	O
is	O
one	O
of	O
the	O
first	O
combinations	O
of	O
scientific	O
calculator	O
and	O
portable	O
computer	O
with	O
BASIC	B-Language
interpreter/bytecode	O
compiler	O
.	O
</s>
<s>
The	O
PC-1402	B-Device
has	O
the	O
same	O
features	O
but	O
includes	O
10K	O
of	O
RAM	B-Architecture
.	O
</s>
<s>
The	O
PC-1421	O
is	O
a	O
variant	O
of	O
the	O
PC-1401	B-Device
for	O
financial	O
calculations	O
.	O
</s>
<s>
It	O
differs	O
from	O
the	O
PC-1401	B-Device
in	O
the	O
contents	O
of	O
its	O
ROM	O
and	O
higher	O
CPU	B-General_Concept
speed	O
.	O
</s>
<s>
The	O
PC-1421	O
CPU	B-General_Concept
clocks	O
at	O
768kHz	O
vs	O
576kHz	O
for	O
the	O
PC-1401	B-Device
.	O
</s>
<s>
The	O
PC-1430	O
is	O
a	O
stripped-down	O
variant	O
of	O
the	O
PC-1401	B-Device
.	O
</s>
<s>
The	O
display	O
and	O
case	O
are	O
mostly	O
the	O
same	O
(	O
except	O
for	O
fewer	O
keys	O
)	O
,	O
but	O
the	O
PC-1430	O
lacks	O
the	O
calculator	O
modus	O
(	O
for	O
calculations	O
the	O
BASIC	B-Language
mode	O
has	O
to	O
be	O
used	O
)	O
,	O
it	O
offers	O
less	O
functions	O
,	O
only	O
2	O
KB	O
RAM	B-Architecture
,	O
and	O
no	O
speaker	O
or	O
buzzer	O
.	O
</s>
<s>
The	O
PC-1450	O
supports	O
user	O
changeable	O
RAM	B-Architecture
cards	O
:	O
CE-211M	O
(	O
3070	O
bytes	O
=	O
4	O
KB	O
/	O
Standard	O
)	O
,	O
CE-201M	O
(	O
7166	O
bytes	O
=	O
8	O
KB	O
)	O
or	O
CE-202M	O
(	O
15,358	O
bytes	O
=	O
16	O
KB	O
)	O
.	O
</s>
