<s>
CPT	B-Protocol
Corporation	I-Protocol
was	O
founded	O
in	O
1971	O
by	O
Dean	O
Scheff	O
in	O
Minneapolis	O
,	O
Minnesota	O
,	O
with	O
co-founders	O
James	O
Wienhold	O
and	O
Richard	O
Eichhorn	O
.	O
</s>
<s>
CPT	O
first	O
designed	O
,	O
manufactured	O
,	O
and	O
marketed	O
the	O
CPT	O
4200	O
,	O
a	O
dual-cassette-tape	O
machine	O
that	O
controlled	O
a	O
modified	O
IBM	O
Selectric	O
typewriter	O
to	O
support	O
text	B-Application
editing	I-Application
and	O
word	B-General_Concept
processing	I-General_Concept
.	O
</s>
<s>
The	O
CPT	O
4200	O
was	O
followed	O
in	O
1976	O
by	O
the	O
CPT	O
VM	O
(	O
Visual	O
Memory	O
)	O
,	O
a	O
partial-page	O
display-screen	O
dual-cassette-tape	O
unit	O
,	O
and	O
shortly	O
thereafter	O
by	O
the	O
CPT	O
8000	O
,	O
a	O
full-page	O
display	O
dual-diskette	O
desktop	O
microcomputer	B-Architecture
that	O
drove	O
stand-alone	O
daisy	O
wheel	O
printers	O
.	O
</s>
<s>
Subsequent	O
products	O
included	O
(	O
1	O
)	O
variants	O
on	O
the	O
8000	O
series	O
;	O
(	O
2	O
)	O
the	O
CPT	O
6000	O
series	O
,	O
which	O
had	O
a	O
lower	O
capacity	O
,	O
smaller	O
screen	O
,	O
and	O
was	O
less	O
expensive	O
;	O
(	O
3	O
)	O
the	O
CPT	O
9000	O
series	O
,	O
which	O
had	O
a	O
larger	O
capacity	O
and	O
could	O
run	O
IBM	B-Device
personal	I-Device
computer	I-Device
software	O
;	O
(	O
4	O
)	O
the	O
CPT	O
Phoenix	O
series	O
,	O
which	O
had	O
a	O
graphical	O
capabilities	O
;	O
(	O
5	O
)	O
CPT	O
PT	O
,	O
a	O
software-only	O
reduced	O
version	O
that	O
ran	O
on	O
IBM	B-Device
personal	I-Device
computers	I-Device
and	O
clones	O
;	O
and	O
(	O
6	O
)	O
other	O
related	O
products	O
.	O
</s>
<s>
Major	O
competition	O
was	O
IBM	O
,	O
Wang	O
,	O
Lanier	O
,	O
Xerox	O
,	O
and	O
other	O
word	B-General_Concept
processing	I-General_Concept
vendors	O
.	O
</s>
<s>
CPT	B-Protocol
Corporation	I-Protocol
was	O
fifth	O
in	O
size	O
among	O
Minnesota-based	O
top	O
high-tech	O
companies	O
,	O
after	O
3M	O
,	O
Honeywell	O
,	O
Control	O
Data	O
,	O
and	O
Medtronic	O
.	O
</s>
<s>
Corporate	O
revenues	O
grew	O
to	O
approximately	O
a	O
quarter-billion	O
dollars	O
per	O
year	O
in	O
the	O
mid-1980s	O
,	O
then	O
declined	O
with	O
the	O
proliferation	O
of	O
personal	B-Device
computers	I-Device
.	O
</s>
<s>
The	O
CPT	O
4200	O
was	O
a	O
dual-cassette-tape	O
unit	O
with	O
a	O
small	O
built-in	O
keyboard	O
that	O
controlled	O
a	O
modified	O
IBM	O
Selectric	O
typewriter	O
.	O
</s>
<s>
That	O
output	O
cassette	O
could	O
later	O
be	O
used	O
as	O
an	O
input	O
cassette	O
,	O
where	O
it	O
would	O
be	O
played	O
back	O
to	O
the	O
typewriter	O
along	O
with	O
new	O
keystrokes	O
to	O
accomplish	O
text	B-Application
editing	I-Application
.	O
</s>
<s>
The	O
CPT	O
8000	O
was	O
the	O
company	O
's	O
first	O
microcomputer	B-Architecture
product	O
,	O
exhibited	O
in	O
spring	O
of	O
1976	O
.	O
</s>
<s>
It	O
was	O
a	O
self-contained	O
desktop	O
machine	O
with	O
two	O
8	O
inch	O
floppy	B-Device
diskette	I-Device
drives	O
,	O
a	O
movable	O
keyboard	O
,	O
and	O
a	O
full-page	O
vertically	O
oriented	O
CRT	B-Device
display	I-Device
simulating	O
paper	O
with	O
black	O
characters	O
on	O
a	O
white	O
background	O
,	O
for	O
a	O
view	O
of	O
text	O
on	O
paper	O
.	O
</s>
<s>
The	O
MSDOS	B-Application
version	O
of	O
Stage	O
2	O
was	O
less	O
than	O
10K	O
bytes	O
so	O
all	O
of	O
the	O
tools	O
CPT	O
used	O
were	O
fast	O
and	O
totally	O
portable	O
to	O
any	O
machine	O
with	O
a	O
running	O
Stage	O
2	O
.	O
</s>
<s>
An	O
IBM	O
system	O
360	O
,	O
IBM	B-Device
PC	I-Device
(	O
MSDOS/WINDOWS	O
)	O
,	O
CPT	O
8000	O
system	O
,	O
68000	O
versions	O
of	O
Stage	O
2	O
were	O
written	O
in	O
house	O
and	O
of	O
course	O
Stage	O
2	O
was	O
created	O
for	O
many	O
other	O
machines	O
.	O
</s>
<s>
CP/M	O
80	O
,	O
CP/M	O
86	O
,	O
MP/M	O
,	O
Concurrent	O
as	O
well	O
as	O
the	O
CPT	O
Word	B-General_Concept
Processing	I-General_Concept
software	O
which	O
was	O
fully	O
multitasking	O
.	O
</s>
<s>
Later	O
the	O
Phoenix	O
was	O
made	O
able	O
to	O
run	O
the	O
then	O
new	O
MSDOS	B-Application
operating	O
system	O
.	O
</s>
<s>
When	O
it	O
was	O
released	O
(	O
shortly	O
before	O
the	O
IBM	B-Device
PC	I-Device
release	O
)	O
and	O
for	O
a	O
considerable	O
time	O
afterwards	O
it	O
was	O
arguably	O
the	O
most	O
advanced	O
microcomputer	B-Architecture
system	O
available	O
.	O
</s>
<s>
Prior	O
to	O
WordPak	O
,	O
all	O
documents	O
were	O
stored	O
on	O
removable	O
8	O
inch	O
floppy	B-Device
diskettes	I-Device
.	O
</s>
<s>
So	O
a	O
system	O
that	O
started	O
with	O
floppy	B-Device
drives	I-Device
A	O
and	O
B	O
and	O
a	O
C	O
hard	O
disc	O
on	O
the	O
machine	O
would	O
have	O
the	O
SRS	O
45	O
drives	O
added	O
as	O
drives	O
D	O
(	O
E	O
,	O
F	O
depending	O
on	O
the	O
number	O
of	O
hard	O
discs	O
)	O
and	O
Z	O
for	O
the	O
zip	O
drive	O
.	O
</s>
<s>
CPT	O
PT	O
was	O
a	O
reduced	O
a	O
version	O
of	O
the	O
software	O
that	O
ran	O
under	O
MS-DOS	B-Application
as	O
an	O
application	O
on	O
IBM	B-Device
PC	I-Device
compatible	O
computers	O
.	O
</s>
<s>
The	O
corporation	O
intended	O
it	O
as	O
a	O
bridge	O
to	O
allow	O
data	O
to	O
flow	O
in	O
and	O
out	O
of	O
personal	B-Device
computer	I-Device
packages	O
,	O
as	O
well	O
as	O
providing	O
a	O
personal-computer	O
word	B-General_Concept
processing	I-General_Concept
application	O
for	O
those	O
familiar	O
with	O
standalone	O
CPT	O
equipment	O
or	O
who	O
preferred	O
the	O
CPT	O
style	O
of	O
dual-window	O
text	B-Application
editing	I-Application
.	O
</s>
<s>
The	O
Genius	O
display	O
was	O
a	O
stand-alone	O
vertically	O
oriented	O
(	O
portrait	O
)	O
configuration	O
monochrome	O
grey-scale	O
CRT	B-Device
monitor	I-Device
unit	O
and	O
an	O
IBM	B-Device
PC	I-Device
form	O
factor	O
display	O
card	O
to	O
allow	O
high	O
resolution	O
full	O
page	O
text	O
&	O
graphics	O
on	O
IBM	B-Device
PC	I-Device
compatible	O
computers	O
.	O
</s>
<s>
A	O
special	O
MS-DOS	B-Application
driver	O
was	O
required	O
,	O
but	O
allowed	O
a	O
text	O
screen	O
to	O
be	O
80	O
characters	O
wide	O
and	O
66	O
lines	O
tall	O
(	O
a	O
normal	O
printed	O
page	O
parameters	O
)	O
.	O
</s>
<s>
Text	B-Application
editors	I-Application
such	O
as	O
Quicksoft	B-Protocol
's	O
PC-Write	B-Protocol
,	O
WordPerfect	O
,	O
WordStar	O
,	O
VolksWriter	O
(	O
and	O
more	O
)	O
supported	O
the	O
full	O
page	O
mode	O
.	O
</s>
