<s>
The	O
Microwriter	B-Protocol
is	O
a	O
hand-held	O
portable	O
word-processor	O
with	O
a	O
chording	B-Device
keyboard	I-Device
.	O
</s>
<s>
First	O
demonstrated	O
in	O
1978	O
,	O
it	O
was	O
invented	O
by	O
UK-based	O
,	O
US-born	O
film	O
director	O
Cy	O
Endfield	O
and	O
his	O
partner	O
Chris	O
Rainey	O
and	O
was	O
marketed	O
in	O
the	O
early	O
1980s	O
by	O
Microwriter	B-Protocol
Ltd	O
,	O
of	O
Mitcham	O
,	O
Surrey	O
,	O
UK	O
.	O
</s>
<s>
Although	O
there	O
was	O
an	O
earlier	O
unit	O
with	O
an	O
LED	O
display	O
,	O
the	O
MW4	O
with	O
an	O
LCD	B-Device
was	O
the	O
most	O
common	O
unit	O
.	O
</s>
<s>
A	O
six-button	O
chording	B-Device
keyboard	I-Device
.	O
</s>
<s>
A	O
single	O
line	O
LCD	B-Device
.	O
</s>
<s>
An	O
8	O
bit	O
CDP1802	B-General_Concept
microprocessor	B-Architecture
.	O
</s>
<s>
Complete	O
Word	B-General_Concept
processing	I-General_Concept
software	O
in	O
ROM	B-Device
.	O
</s>
<s>
16	O
kilobytes	O
of	O
RAM	B-Architecture
.	O
</s>
<s>
This	O
device	O
is	O
capable	O
of	O
allowing	O
the	O
user	O
to	O
enter	O
and	O
edit	O
several	O
pages	O
of	O
text	O
-	O
and	O
by	O
connecting	O
a	O
printer	O
to	O
the	O
RS-232	O
serial	B-Protocol
port	I-Protocol
connector	O
,	O
documents	O
can	O
be	O
printed	O
without	O
the	O
aid	O
of	O
a	O
separate	O
computer	O
.	O
</s>
<s>
The	O
second	O
thumb	O
button	O
is	O
used	O
to	O
toggle	O
through	O
a	O
range	O
of	O
modes	O
that	O
allow	O
the	O
user	O
to	O
switch	O
case	O
,	O
enter	O
numbers	O
,	O
insert	O
punctuation	O
and	O
even	O
add	O
ASCII	B-Protocol
control	O
characters	O
,	O
to	O
be	O
used	O
in	O
editing	O
the	O
document	O
being	O
prepared	O
.	O
</s>
<s>
With	O
some	O
practice	O
,	O
it	O
is	O
possible	O
to	O
become	O
a	O
faster	O
typist	O
with	O
the	O
Microwriter	B-Protocol
than	O
with	O
a	O
conventional	O
keyboard	O
,	O
providing	O
that	O
what	O
is	O
being	O
entered	O
is	O
just	O
text	O
.	O
</s>
<s>
At	O
the	O
top	O
end	O
of	O
the	O
unit	O
is	O
a	O
25	O
pin	O
D-type	B-Protocol
connector	I-Protocol
providing	O
an	O
RS-232	O
port	O
,	O
an	O
interface	O
to	O
an	O
audio	O
cassette	O
player	O
for	O
saving	O
and	O
restoring	O
files	O
and	O
a	O
small	O
white	O
on/off	O
button	O
.	O
</s>
<s>
At	O
the	O
other	O
end	O
is	O
the	O
connector	O
for	O
the	O
battery	O
charger	O
and	O
a	O
37	O
pin	O
D-type	B-Protocol
connector	I-Protocol
that	O
can	O
be	O
hooked	O
up	O
to	O
an	O
optional	O
external	O
unit	O
to	O
allow	O
the	O
Microwriter	B-Protocol
to	O
be	O
connected	O
to	O
a	O
television	O
and	O
thus	O
to	O
perform	O
full-screen	O
editing	O
.	O
</s>
<s>
The	O
serial	B-Protocol
port	I-Protocol
can	O
be	O
used	O
to	O
connect	O
the	O
Microwriter	B-Protocol
directly	O
to	O
a	O
printer	O
,	O
or	O
to	O
allow	O
it	O
to	O
be	O
plugged	O
into	O
a	O
computer	O
to	O
function	O
in	O
place	O
of	O
the	O
conventional	O
keyboard	O
.	O
</s>
<s>
Despite	O
a	O
lack	O
of	O
similar	O
products	O
,	O
the	O
Microwriter	B-Protocol
was	O
not	O
a	O
success	O
,	O
and	O
ceased	O
production	O
in	O
1985	O
.	O
</s>
<s>
Microwriters	B-Protocol
were	O
sold	O
direct	O
,	O
in	O
the	O
USA	O
the	O
advertised	O
price	O
was	O
US	O
$499.00	O
which	O
might	O
have	O
been	O
too	O
high	O
for	O
a	O
successful	O
product	O
offering	O
.	O
</s>
<s>
A	O
cut-down	O
version	O
of	O
the	O
Microwriter	B-Protocol
,	O
known	O
as	O
the	O
"	O
Quinkey	B-Protocol
"	O
,	O
was	O
sold	O
as	O
a	O
keyboard	O
add-on	O
for	O
the	O
BBC	B-Device
Micro	I-Device
computer	O
connecting	O
via	O
the	O
analogue	O
port	O
.	O
</s>
<s>
There	O
were	O
two	O
versions	O
of	O
the	O
interface	O
software	O
,	O
one	O
optimised	O
for	O
entering	O
BBC	O
BASIC	O
commands	O
,	O
the	O
other	O
for	O
word	B-General_Concept
processing	I-General_Concept
.	O
</s>
<s>
The	O
Microwriter	B-Protocol
AgendA	O
was	O
one	O
of	O
the	O
first	O
PDAs	O
.	O
</s>
<s>
Released	O
in	O
1989	O
,	O
it	O
includes	O
a	O
set	O
of	O
small	O
"	O
conventional	O
"	O
keys	O
arranged	O
inside	O
the	O
half	O
circle	O
of	O
a	O
Microwriter	B-Protocol
chording	B-Device
keyboard	I-Device
with	O
larger	O
keys	O
.	O
</s>
<s>
It	O
has	O
32k	O
of	O
storage	O
,	O
pluggable	O
memory	O
modules	O
,	O
a	O
4-line	O
LCD	B-Device
screen	I-Device
,	O
and	O
advertised	O
excellent	O
build	O
quality	O
and	O
long	O
battery	O
life	O
.	O
</s>
<s>
Chris	O
Rainey	O
,	O
the	O
co-inventor	O
of	O
Microwriter	B-Protocol
,	O
re-introduced	O
Microwriting	O
for	O
PC	O
and	O
Palm	O
PDAs	O
with	O
a	O
standalone	O
miniature	O
chording	B-Device
keyboard	I-Device
called	O
CyKey	B-Device
.	O
</s>
<s>
CyKey	B-Device
is	O
named	O
after	O
the	O
Microwriter	B-Protocol
chord	O
system	O
's	O
co-inventor	O
Cy	O
Endfield	O
.	O
</s>
<s>
The	O
SiWriter	O
is	O
an	O
app	O
for	O
the	O
iPad	O
and	O
iPhone	O
which	O
uses	O
a	O
close	O
variant	O
of	O
the	O
microwriter	B-Protocol
chording	O
system	O
developed	O
by	O
Cy	O
Enfield	O
.	O
</s>
