<s>
The	O
TRS-80	B-Operating_System
Model	I-Operating_System
100	I-Operating_System
is	O
a	O
portable	B-Device
computer	I-Device
introduced	O
in	O
April	O
1983	O
.	O
</s>
<s>
It	O
is	O
one	O
of	O
the	O
first	O
notebook-style	O
computers	O
,	O
featuring	O
a	O
keyboard	O
and	O
liquid	B-Device
crystal	I-Device
display	I-Device
,	O
in	O
a	O
battery-powered	O
package	O
roughly	O
the	O
size	O
and	O
shape	O
of	O
a	O
notepad	O
or	O
large	O
book	O
.	O
</s>
<s>
It	O
was	O
made	O
by	O
Kyocera	O
,	O
and	O
originally	O
sold	O
in	O
Japan	O
as	O
the	O
Kyotronic	B-Operating_System
85	I-Operating_System
.	O
</s>
<s>
The	O
Olivetti	B-Operating_System
M-10	I-Operating_System
and	O
the	O
NEC	O
PC-8201	O
and	O
PC-8300	O
were	O
also	O
built	O
on	O
the	O
same	O
Kyocera	O
platform	O
,	O
with	O
some	O
design	O
and	O
hardware	O
differences	O
.	O
</s>
<s>
Processor	O
:	O
8-bit	O
Oki	O
80C85	B-General_Concept
,	O
CMOS	B-Device
,	O
</s>
<s>
Memory	O
:	O
32	O
KB	O
ROM	B-Device
;	O
8	O
,	O
16	O
,	O
24	O
,	O
or	O
32	O
KB	O
static	B-Architecture
RAM	I-Architecture
.	O
</s>
<s>
Machines	O
with	O
less	O
than	O
32	O
KB	O
can	O
be	O
expanded	O
in	O
8	O
KB	O
increments	O
of	O
plug-in	O
static	B-Architecture
RAM	I-Architecture
modules	O
.	O
</s>
<s>
An	O
additional	O
32	O
KB	O
Option	O
ROM	B-Device
can	O
be	O
installed	O
,	O
for	O
a	O
total	O
of	O
64	O
KB	O
of	O
ROM	B-Device
(	O
bank-switched	O
in	O
a	O
32	O
KB	O
aperture	O
)	O
,	O
and	O
the	O
Standard	O
ROM	B-Device
is	O
socket-mounted	O
(	O
not	O
soldered-in	O
)	O
so	O
is	O
readily	O
replaceable	O
.	O
</s>
<s>
Display	O
:	O
8	O
lines	O
,	O
40	O
characters	O
LCD	B-Device
,	O
twisted	O
nematic	O
(	O
gray	O
)	O
monochrome	O
,	O
with	O
240	O
by	O
64	O
pixel	B-Algorithm
addressable	O
graphics	O
.	O
</s>
<s>
The	O
LCD	B-Device
controllers	O
are	O
by	O
Hitachi	O
:	O
(	O
10	O
)	O
HD44102CH	O
column	O
controller	O
ICs	O
and	O
(	O
2	O
)	O
HD44103CH	O
row	O
driver	O
ICs	O
;	O
the	O
HD44102CH	O
's	O
provide	O
the	O
programmable	O
hardware	O
interface	O
to	O
software	O
.	O
</s>
<s>
Almost	O
all	O
keys	O
other	O
than	O
the	O
16	O
"	O
button	O
"	O
keys	O
are	O
capable	O
of	O
key	B-Device
rollover	I-Device
(	O
without	O
phantom	O
keys	O
appearing	O
depressed	O
)	O
,	O
so	O
multi-key	O
combinations	O
can	O
be	O
used	O
.	O
</s>
<s>
Peripherals	O
:	O
The	O
basic	O
unit	O
includes	O
:	O
Built-in	O
300	O
baud	O
telephone	O
(	O
POTS	O
)	O
modem	B-Application
(	O
North	O
American	O
versions	O
)	O
,	O
Centronics-compatible	O
parallel	O
printer	O
port	O
,	O
RS-232	O
serial	O
communication	O
port	O
(	O
sharing	O
serial	O
I/O	O
chip	O
with	O
internal	O
modem	B-Application
)	O
,	O
barcode	O
reader	O
input	O
,	O
cassette	O
audio	O
tape	O
I/O	O
,	O
real-time	O
clock	O
.	O
</s>
<s>
The	O
Model	B-Operating_System
100	I-Operating_System
was	O
promoted	O
as	O
being	O
able	O
to	O
run	O
up	O
to	O
20	O
hours	O
and	O
maintain	O
memory	O
up	O
to	O
30	O
days	O
on	O
a	O
set	O
of	O
four	O
alkaline	B-Algorithm
AA	B-Algorithm
batteries	I-Algorithm
.	O
</s>
<s>
A	O
popular	O
alternative	O
was	O
the	O
Tandy	O
Portable	O
Disk	O
Drive	O
(	O
TPDD	O
)	O
,	O
introduced	O
in	O
late	O
1985	O
,	O
an	O
RS-232	O
serial	O
device	O
capable	O
of	O
storing	O
100KB	O
of	O
data	O
FM-encoded	B-Protocol
on	O
a	O
3.5-inch	O
single-sided	O
double-density	O
diskette	O
;	O
this	O
drive	O
is	O
identical	O
to	O
the	O
Brother	O
FB100	O
drive	O
for	O
knitting	O
machines	O
.	O
</s>
<s>
This	O
allowed	O
the	O
Model	B-Operating_System
100	I-Operating_System
to	O
display	O
40	O
or	O
80	O
column	O
video	O
on	O
an	O
external	O
television	O
set	O
or	O
video	O
monitor	O
.	O
</s>
<s>
Another	O
popular	O
form	O
of	O
data	O
backup	O
was	O
that	O
of	O
file	O
transfer	O
to	O
a	O
desktop	O
computer	O
,	O
via	O
either	O
the	O
modem	B-Application
connected	O
to	O
a	O
telephone	O
line	O
,	O
or	O
the	O
RS-232	O
serial	O
port	O
connected	O
to	O
a	O
null	O
modem	B-Application
cable	O
.	O
</s>
<s>
The	O
built-in	O
TELCOM	O
firmware	B-Application
made	O
this	O
a	O
convenient	O
option	O
.	O
</s>
<s>
The	O
TRS-80	B-Device
Model	I-Device
4	I-Device
's	O
TRSDOS	O
6	O
operating	O
system	O
included	O
a	O
utility	O
called	O
TAPE100	O
that	O
used	O
the	O
Model	O
4	O
's	O
cassette	O
port	O
to	O
read	O
and	O
write	O
tapes	O
created	O
by	O
a	O
Model	B-Operating_System
100	I-Operating_System
,	O
the	O
data	O
of	O
which	O
were	O
stored	O
in	O
TRSDOS	O
disk	O
files	O
.	O
</s>
<s>
Also	O
because	O
TRSDOS	O
6	O
included	O
a	O
communications	O
application	O
(	O
COMM/CMD	O
)	O
,	O
the	O
Model	B-Operating_System
100	I-Operating_System
proved	O
a	O
popular	O
"	O
peripheral	O
"	O
for	O
the	O
Model	O
4	O
customer	O
.	O
</s>
<s>
When	O
first	O
switched	O
on	O
,	O
the	O
Model	B-Operating_System
100	I-Operating_System
displays	O
a	O
menu	O
of	O
applications	O
and	O
files	O
and	O
the	O
date	O
and	O
time	O
.	O
</s>
<s>
The	O
ROM	B-Device
firmware-based	O
system	O
boots	O
instantly	O
,	O
and	O
the	O
program	O
that	O
was	O
running	O
when	O
the	O
unit	O
was	O
powered	O
off	O
is	O
ready	O
to	O
use	O
immediately	O
on	O
power-up	O
.	O
</s>
<s>
The	O
32	O
kilobyte	O
read-only	B-Device
memory	I-Device
of	O
the	O
Model	B-Operating_System
100	I-Operating_System
contains	O
the	O
N82	O
version	O
of	O
the	O
Microsoft	B-Language
BASIC	I-Language
80	I-Language
programming	O
language	O
.	O
</s>
<s>
This	O
is	O
similar	O
to	O
other	O
Microsoft	B-Language
BASICs	I-Language
of	O
the	O
time	O
and	O
includes	O
good	O
support	O
for	O
the	O
hardware	O
features	O
of	O
the	O
machine	O
:	O
pixel	B-Algorithm
addressing	O
of	O
the	O
display	O
,	O
support	O
for	O
the	O
internal	O
modem	B-Application
and	O
serial	O
port	O
,	O
monophonic	O
sound	O
,	O
access	O
to	O
tape	O
and	O
RAM	O
files	O
,	O
support	O
for	O
the	O
real-time	O
clock	O
and	O
the	O
bar	O
code	O
reader	O
,	O
and	O
I/O	O
redirection	O
between	O
the	O
machine	O
's	O
various	O
logical	O
devices	O
.	O
</s>
<s>
Like	O
previous	O
Microsoft	B-Language
BASIC	I-Language
interpreters	O
,	O
variable	O
names	O
were	O
restricted	O
to	O
two	O
characters	O
and	O
all	O
program	O
lines	O
and	O
subroutines	O
were	O
numbered	O
and	O
not	O
named	O
.	O
</s>
<s>
However	O
,	O
the	O
default	O
for	O
floating	B-Algorithm
point	I-Algorithm
numbers	I-Algorithm
is	O
double-precision	O
.	O
</s>
<s>
The	O
ROM	B-Device
also	O
contains	O
a	O
terminal	O
program	O
,	O
TELCOM	O
;	O
an	O
address/phone	O
book	O
organizer	O
,	O
ADDRSS	O
;	O
a	O
to-do	O
list	O
organizer	O
,	O
SCHEDL	O
;	O
and	O
a	O
simple	O
text	O
editor	O
,	O
TEXT	O
.	O
</s>
<s>
The	O
TELCOM	O
program	O
allows	O
automation	O
of	O
a	O
login	B-General_Concept
sequence	O
to	O
a	O
remote	O
system	O
under	O
control	O
of	O
the	O
BASIC	O
interpreter	O
.	O
</s>
<s>
As	O
with	O
other	O
home	O
computers	O
of	O
the	O
era	O
,	O
a	O
vast	O
collection	O
of	O
PEEK	B-Language
and	I-Language
POKE	I-Language
locations	O
were	O
collected	O
by	O
avid	O
hobbyists	O
.	O
</s>
<s>
The	O
Model	B-Operating_System
100	I-Operating_System
TEXT	O
editor	O
was	O
noticeably	O
slow	O
in	O
execution	O
,	O
especially	O
for	O
fast	O
touch	O
typists	O
.	O
</s>
<s>
This	O
was	O
due	O
partly	O
to	O
the	O
slow	O
8085	B-General_Concept
CPU	O
and	O
due	O
partly	O
to	O
the	O
slow	O
response	O
time	O
of	O
the	O
LCD	B-Device
screen	I-Device
.	O
</s>
<s>
A	O
perhaps	O
not	O
well-known	O
but	O
documented	O
feature	O
of	O
TEXT	O
was	O
that	O
it	O
partially	O
supported	O
the	O
WordStar	B-Application
command	O
interface	O
.	O
</s>
<s>
The	O
supported	O
commands	O
were	O
the	O
cursor	O
movement	O
and	O
character	O
deletion	O
<Control><alpha> key combinations on the left hand side of the keyboard; the commands for activating Wordstar menus, like the <Ctrl><K>	O
Block	O
menu	O
,	O
were	O
not	O
functional	O
.	O
</s>
<s>
The	O
Model	B-Operating_System
100	I-Operating_System
firmware	B-Application
was	O
the	O
last	O
Microsoft	O
product	O
that	O
Bill	O
Gates	O
developed	O
personally	O
,	O
along	O
with	O
Suzuki	O
.	O
</s>
<s>
Optional	O
ROMs	B-Device
can	O
be	O
installed	O
in	O
the	O
Model	B-Operating_System
100	I-Operating_System
,	O
providing	O
a	O
range	O
of	O
customized	O
application	O
software	O
.	O
</s>
<s>
Only	O
one	O
optional	O
ROM	B-Device
can	O
be	O
installed	O
at	O
a	O
time	O
.	O
</s>
<s>
Some	O
commercial	O
software	O
applications	O
for	O
the	O
Model	B-Operating_System
100	I-Operating_System
were	O
also	O
distributed	O
on	O
cassette	O
.	O
</s>
<s>
The	O
Model	B-Operating_System
100	I-Operating_System
ROM	B-Device
has	O
a	O
Y2K	B-Error_Name
bug	I-Error_Name
;	O
the	O
century	O
displayed	O
on	O
the	O
main	O
menu	O
was	O
hard-coded	O
as	O
"	O
19XX	O
"	O
.	O
</s>
<s>
Workarounds	B-Application
exist	O
for	O
this	O
problem	O
.	O
</s>
<s>
Since	O
the	O
century	O
of	O
the	O
date	O
is	O
not	O
important	O
for	O
any	O
of	O
the	O
software	O
functions	O
,	O
and	O
the	O
real-time	O
clock	O
hardware	O
in	O
the	O
Model	B-Operating_System
100	I-Operating_System
does	O
not	O
have	O
a	O
calendar	O
and	O
requires	O
the	O
day	O
of	O
the	O
week	O
to	O
be	O
set	O
independently	O
of	O
the	O
date	O
,	O
the	O
flaw	O
does	O
not	O
at	O
all	O
impair	O
the	O
usability	O
of	O
the	O
computer	O
;	O
it	O
is	O
cosmetic	O
.	O
</s>
<s>
When	O
introduced	O
,	O
the	O
portability	O
and	O
simplicity	O
of	O
the	O
Model	B-Operating_System
100	I-Operating_System
made	O
it	O
attractive	O
to	O
journalists	O
,	O
who	O
could	O
type	O
about	O
11	O
pages	O
of	O
text	O
(	O
if	O
upgraded	O
to	O
the	O
maximum	O
of	O
32	O
KB	O
RAM	O
)	O
and	O
then	O
transmit	O
it	O
for	O
electronic	O
editing	O
and	O
production	O
using	O
the	O
built-in	O
modem	B-Application
and	O
TELCOM	O
program	O
.	O
</s>
<s>
The	O
computer	O
is	O
otherwise	O
silent	O
when	O
it	O
operates	O
,	O
except	O
for	O
the	O
speaker	O
,	O
and	O
runs	O
for	O
20	O
hours	O
on	O
4	O
readily	O
available	O
and	O
easily	O
replaceable	O
AA	B-Algorithm
batteries	I-Algorithm
.	O
</s>
<s>
Data	O
is	O
protected	O
by	O
a	O
built-in	O
rechargeable	O
(	O
Ni-Cd	O
)	O
battery	O
when	O
the	O
AA	B-Algorithm
batteries	I-Algorithm
discharge	O
or	O
are	O
removed	O
for	O
replacement	O
.	O
</s>
<s>
There	O
are	O
several	O
simple	O
programs	O
available	O
on	O
the	O
Internet	O
for	O
transferring	O
files	O
between	O
a	O
Model	B-Operating_System
100	I-Operating_System
and	O
a	O
modern	O
personal	O
computer	O
(	O
or	O
a	O
vintage	O
one	O
)	O
.	O
</s>
<s>
The	O
Model	B-Operating_System
100	I-Operating_System
was	O
also	O
used	O
for	O
industrial	O
applications	O
and	O
in	O
science	O
laboratories	O
as	O
a	O
programming	O
terminal	O
for	O
configuration	O
of	O
control	O
systems	O
and	O
instruments	O
.	O
</s>
<s>
Third-party	O
peripherals	O
for	O
the	O
Model	B-Operating_System
100	I-Operating_System
extended	O
its	O
battery	O
life	O
and	O
file	O
storage	O
capacity	O
.	O
</s>
<s>
Simple	O
drawing	O
programs	O
and	O
games	O
using	O
the	O
pixel-addressable	O
display	O
were	O
favorites	O
among	O
users	O
.	O
</s>
<s>
There	O
are	O
no	O
built-in	O
facilities	O
for	O
8085	B-General_Concept
assembler	O
programming	O
,	O
but	O
the	O
thoroughly-documented	O
BASIC	O
interpreter	O
by	O
Microsoft	O
offered	O
the	O
clever	O
coder	O
tricks	O
for	O
accessing	O
machine	O
code	O
subroutines	O
.	O
</s>
<s>
These	O
tricks	O
usually	O
involved	O
packing	O
the	O
raw	O
object	O
code	O
into	O
strings	O
or	O
integer	O
arrays	O
,	O
and	O
would	O
be	O
familiar	O
to	O
veteran	O
programmers	O
for	O
the	O
older	O
TRS-80	B-Device
Models	I-Device
I	I-Device
and	I-Device
III	I-Device
.	O
</s>
<s>
The	O
Tandy	O
200	O
was	O
introduced	O
in	O
1984	O
as	O
a	O
more	O
capable	O
sister	O
product	O
of	O
the	O
Model	B-Operating_System
100	I-Operating_System
.	O
</s>
<s>
Rather	O
than	O
the	O
"	O
button	O
"	O
style	O
keys	O
of	O
the	O
Model	B-Operating_System
100	I-Operating_System
,	O
its	O
four	O
arrow	O
keys	O
are	O
a	O
cluster	O
of	O
keys	O
of	O
the	O
same	O
size	O
and	O
shape	O
as	O
those	O
comprising	O
the	O
keyboard	O
,	O
though	O
the	O
function	O
and	O
command	O
"	O
keys	O
"	O
are	O
still	O
of	O
the	O
button	O
type	O
.	O
</s>
<s>
The	O
Tandy	O
200	O
includes	O
Multiplan	B-Device
,	O
a	O
spreadsheet	O
application	O
.	O
</s>
<s>
It	O
also	O
added	O
DTMF	O
tone	O
dialing	O
for	O
the	O
internal	O
modem	B-Application
,	O
whereas	O
the	O
Model	B-Operating_System
100	I-Operating_System
only	O
supports	O
pulse	O
dialing	O
.	O
</s>
<s>
On	O
a	O
phone	O
line	O
that	O
does	O
n't	O
support	O
pulse	O
dialing	O
,	O
users	O
may	O
dial	O
manually	O
using	O
a	O
touch-tone	O
phone	O
and	O
then	O
put	O
the	O
Model	B-Operating_System
100	I-Operating_System
online	O
.	O
</s>
<s>
The	O
last	O
refresh	O
to	O
the	O
product	O
line	O
was	O
the	O
Tandy	O
102	O
,	O
introduced	O
in	O
1986	O
as	O
a	O
direct	O
replacement	O
for	O
the	O
Model	B-Operating_System
100	I-Operating_System
,	O
having	O
the	O
same	O
software	O
,	O
keyboard	O
,	O
and	O
screen	O
,	O
and	O
a	O
nearly	O
identical	O
,	O
but	O
thinner	O
,	O
form	O
factor	O
that	O
weighed	O
about	O
one	O
pound	O
less	O
than	O
the	O
Model	B-Operating_System
100	I-Operating_System
.	O
</s>
<s>
Later	O
portables	O
from	O
Tandy	O
no	O
longer	O
featured	O
a	O
ROM-based	O
software	O
environment	O
,	O
starting	O
with	O
the	O
Tandy	B-Device
1400LT	I-Device
,	O
which	O
ran	O
a	O
diskette-based	O
MS-DOS	B-Application
operating	O
system	O
in	O
768KB	O
of	O
RAM	O
,	O
utilising	O
two	O
built-in	O
3.5	O
"	O
floppy	O
drives	O
.	O
</s>
<s>
This	O
model	O
resembled	O
the	O
IBM	B-Device
PC	I-Device
Convertible	I-Device
with	O
a	O
"	O
clamshell	O
"	O
design	O
and	O
had	O
a	O
screen	O
supporting	O
a	O
textual	O
display	O
of	O
characters	O
and	O
a	O
graphical	O
resolution	O
of	O
pixels	B-Algorithm
,	O
with	O
eight	O
intensity	O
levels	O
achieved	O
using	O
a	O
form	O
of	O
pulse-width	B-Algorithm
modulation	I-Algorithm
.	O
</s>
<s>
Tandy	O
also	O
released	O
similar	O
word	O
processing	O
portables	O
for	O
the	O
education	O
market	O
based	O
on	O
a	O
Z80-compatible	O
CPU	O
:	O
the	O
Tandy	O
WP-2	O
in	O
1989	O
equipped	O
with	O
32KB	O
of	O
RAM	O
and	O
256KB	O
of	O
ROM	B-Device
containing	O
the	O
application	O
software	O
,	O
and	O
the	O
Tandy	O
WP-3	O
in	O
1993	O
equipped	O
with	O
64KB	O
of	O
RAM	O
.	O
</s>
<s>
In	O
1993	O
,	O
Tandy	O
also	O
announced	O
the	O
Tandy	O
PPC-10	O
pocket	O
PC	O
,	O
based	O
on	O
an	O
80C86-compatible	O
CPU	O
and	O
having	O
1MB	O
of	O
RAM	O
,	O
bundled	O
with	O
MS-DOS	B-Application
5.0	O
,	O
Microsoft	O
Works	O
2.0	O
,	O
PC	O
link	O
and	O
personal	O
information	O
management	O
software	O
,	O
also	O
featuring	O
two	O
PCMCIA	O
slots	O
.	O
</s>
<s>
The	O
Olivetti	B-Operating_System
M10	I-Operating_System
,	O
NEC	O
PC-8201	O
and	O
NEC	B-Operating_System
PC-8300	I-Operating_System
were	O
built	O
on	O
the	O
same	O
platform	O
as	O
the	O
original	O
Kyocera	O
design	O
,	O
although	O
the	O
Olivetti	B-Operating_System
M10	I-Operating_System
had	O
a	O
display	O
that	O
could	O
be	O
tilted	O
towards	O
the	O
user	O
.	O
</s>
<s>
The	O
earlier	O
and	O
smaller	O
Epson	B-Device
HX-20	I-Device
of	O
1983	O
used	O
a	O
much	O
smaller	O
LCD	B-Device
display	I-Device
,	O
four	O
lines	O
of	O
twenty	O
characters	O
,	O
and	O
had	O
an	O
internal	O
cassette	O
tape	O
drive	O
for	O
program	O
and	O
file	O
storage	O
.	O
</s>
<s>
There	O
were	O
several	O
other	O
"	O
calculator-style	O
"	O
computers	O
available	O
at	O
the	O
time	O
,	O
including	O
the	O
Casio	O
FP-200	O
,	O
the	O
Compact	B-Device
Computer	I-Device
40	I-Device
,	O
and	O
the	O
Canon	B-Device
X-07	I-Device
.	O
</s>
<s>
Systems	O
of	O
about	O
the	O
same	O
size	O
and	O
form-factor	O
as	O
the	O
Model	B-Operating_System
100	I-Operating_System
,	O
aimed	O
at	O
journalists	O
,	O
were	O
sold	O
by	O
companies	O
such	O
as	O
Teleram	O
,	O
as	O
the	O
Teleram	O
T-3000	O
and	O
GRiD	O
Systems	O
,	O
as	O
the	O
GRiD	O
Compass	O
,	O
which	O
was	O
used	O
by	O
NASA	O
.	O
</s>
<s>
The	O
Bondwell	B-Operating_System
2	I-Operating_System
of	O
1985	O
was	O
a	O
CP/M	B-Application
laptop	O
in	O
a	O
similar	O
form	O
factor	O
to	O
the	O
Model	O
200	O
.	O
</s>
<s>
Computers	O
from	O
two	O
other	O
British	O
companies	O
were	O
similar	O
in	O
form	O
and	O
functionality	O
to	O
the	O
Model	B-Operating_System
100	I-Operating_System
and	O
its	O
successors	O
.	O
</s>
<s>
The	O
Cambridge	B-Device
Z88	I-Device
of	O
1987	O
,	O
developed	O
by	O
British	O
inventor	O
Sir	O
Clive	O
Sinclair	O
,	O
had	O
greater	O
expansion	O
capacity	O
due	O
to	O
its	O
built-in	O
cartridge	O
slots	O
.	O
</s>
<s>
The	O
firmware	B-Application
contained	O
a	O
powerful	O
application	O
called	O
Pipedream	O
that	O
was	O
a	O
spreadsheet	O
that	O
could	O
also	O
serve	O
capably	O
as	O
a	O
word	O
processor	O
and	O
database	O
.	O
</s>
<s>
The	O
other	O
British	O
computers	O
were	O
the	O
Amstrad	B-Device
NC100	I-Device
and	O
NC200	O
,	O
produced	O
from	O
1992	O
.	O
</s>
<s>
The	O
electronic	O
word	O
processing	O
keyboards	O
AlphaSmart	B-Application
Dana	O
and	O
the	O
Quickpad	O
Pro	O
bear	O
some	O
resemblance	O
to	O
the	O
physical	O
format	O
of	O
the	O
TRS-80	B-Operating_System
Model	I-Operating_System
100	I-Operating_System
.	O
</s>
<s>
The	O
Laser	B-Device
50	I-Device
educational	O
computer	O
is	O
in	O
the	O
same	O
size	O
and	O
form	O
factor	O
as	O
the	O
Model	B-Operating_System
100	I-Operating_System
,	O
and	O
was	O
sold	O
by	O
Video	O
Technology	O
.	O
</s>
<s>
Tandy	O
stated	O
that	O
the	O
Model	B-Operating_System
100	I-Operating_System
's	O
sales	O
"	O
have	O
only	O
been	O
moderate	O
"	O
,	O
and	O
an	O
InfoWorld	O
columnist	O
later	O
claimed	O
that	O
"	O
it	O
was	O
only	O
journalists	O
"	O
who	O
had	O
been	O
buying	O
it	O
.	O
</s>
<s>
He	O
concluded	O
,	O
"	O
I	O
'm	O
not	O
used	O
to	O
giving	O
Radio	O
Shack	O
kudos	O
,	O
but	O
the	O
Model	B-Operating_System
100	I-Operating_System
is	O
a	O
brave	O
,	O
imaginative	O
,	O
useful	O
addition	O
to	O
the	O
realm	O
of	O
microcomputerdom	O
"	O
and	O
"	O
a	O
leading	O
contender	O
for	O
InfoWorlds	O
Hardware	O
Product	O
of	O
the	O
Year	O
for	O
1983	O
"	O
,	O
an	O
award	O
which	O
it	O
indeed	O
won	O
.	O
</s>
<s>
BYTE	B-Application
in	O
1983	O
described	O
the	O
Model	B-Operating_System
100	I-Operating_System
as	O
"	O
an	O
amazing	O
machine	O
"	O
.	O
</s>
<s>
Dave	O
Winer	O
in	O
1984	O
described	O
the	O
100	O
in	O
the	O
magazine	O
as	O
"	O
the	O
first	O
useful	O
portable	B-Device
computer	I-Device
"	O
,	O
listing	O
its	O
screen	O
,	O
keyboard	O
,	O
and	O
software	O
as	O
why	O
it	O
was	O
"	O
a	O
breakthrough	O
"	O
.	O
</s>
<s>
PC	O
Magazine	O
criticized	O
the	O
Model	B-Operating_System
100	I-Operating_System
display	O
's	O
viewing	B-General_Concept
angle	I-General_Concept
,	O
but	O
noted	O
that	O
the	O
text	O
editor	O
automatically	O
reflowed	O
paragraphs	O
unlike	O
WordStar	B-Application
.	O
</s>
<s>
It	O
concluded	O
that	O
the	O
computer	O
"	O
is	O
an	O
ingenious	O
,	O
capable	O
device	O
...	O
an	O
exciting	O
example	O
of	O
the	O
new	O
wave	O
of	O
portable	B-Device
computers	I-Device
"	O
.	O
</s>
<s>
Your	O
Computer	O
magazine	O
selected	O
the	O
Kyocera	O
portable	B-Device
computer	I-Device
(	O
including	O
the	O
Tandy	O
,	O
NEC	O
and	O
Olivetti	O
models	O
)	O
as	O
the	O
best	O
personal	O
computer	O
in	O
its	O
1983	O
"	O
Personal	O
Computer	O
of	O
the	O
Year	O
"	O
awards	O
.	O
</s>
<s>
Creative	B-General_Concept
Computing	I-General_Concept
said	O
that	O
the	O
Model	B-Operating_System
100	I-Operating_System
was	O
"	O
the	O
clear	O
winner	O
"	O
in	O
the	O
category	O
of	O
notebook	O
portables	O
under	O
$1000	O
for	O
1984	O
,	O
although	O
cautioning	O
that	O
"	O
the	O
8K	O
version	O
is	O
practically	O
useless	O
"	O
.	O
</s>
<s>
NADSBox	O
-	O
New	O
Age	O
Digital	O
Storage	O
Box	O
-	O
Interfaces	O
an	O
SD	O
media	O
card	O
using	O
the	O
Tandy	O
TPDD	O
drive	O
protocol	O
for	O
portable	O
storage	O
and	O
easy	O
file	O
transfers	O
to	O
a	O
desktop	O
computer	O
using	O
industry-standard	O
FAT-formatted	O
Secure	B-Device
Digital	I-Device
cards	I-Device
.	O
</s>
