<s>
ArVid	B-Device
(	O
Archiver	O
on	O
Video	O
)	O
(	O
)	O
is	O
a	O
data	B-Protocol
backup	I-Protocol
solution	O
using	O
a	O
VHS	O
tape	O
as	O
a	O
storage	B-General_Concept
medium	I-General_Concept
.	O
</s>
<s>
Using	O
low-cost	O
VHS	O
tapes	O
and	O
recording	O
units	O
for	O
data	B-Protocol
backup	I-Protocol
.	O
</s>
<s>
A	O
VHS	O
recorder	O
unit	O
should	O
be	O
connected	O
to	O
an	O
ArVid	B-Device
ISA	B-Architecture
board	O
by	O
a	O
composite	O
video	O
cable	O
.	O
</s>
<s>
Unit	O
operation	O
is	O
controlled	O
by	O
a	O
remote	B-Protocol
control	I-Protocol
emulator	O
using	O
an	O
LED	O
.	O
</s>
<s>
Device	O
may	O
operate	O
in	O
two	O
modes	O
:	O
low	O
data	O
rate	O
at	O
200KB/s	O
and	O
high	O
data	O
rate	O
at	O
325KB/s	O
(	O
equivalent	O
to	O
roughly	O
1.33	O
×	O
and	O
2.17	O
×	O
CDR	B-Device
recording	I-Device
speed	I-Device
)	O
.	O
</s>
<s>
An	O
E-180	O
video	O
tape	O
is	O
able	O
to	O
hold	O
2GB	O
of	O
uncompressed	B-General_Concept
data	O
at	O
the	O
lower	O
rate	O
,	O
more	O
than	O
sufficient	O
for	O
most	O
PC	O
hard	O
drives	O
of	O
the	O
time	O
.	O
</s>
<s>
ArVid	B-Device
1010	O
,	O
100	O
kbyte/s	O
,	O
4	O
kbyte	O
RAM	O
,	O
was	O
first	O
of	O
ArVid	B-Device
devices	O
.	O
</s>
<s>
ArVid	B-Device
1020	O
,	O
200	O
kbyte/s	O
,	O
no	O
RAM	O
,	O
was	O
a	O
successor	O
to	O
ArVid	B-Device
1010	O
using	O
more	O
advanced	O
integrated	O
circuitry	O
.	O
</s>
<s>
ArVid	B-Device
1030/1031	O
,	O
200	O
kbyte/s	O
,	O
64	O
kbyte	O
RAM	O
,	O
had	O
better	O
internal	O
design	O
,	O
less	O
power	O
consumption	O
,	O
was	O
smaller	O
in	O
size	O
and	O
was	O
made	O
using	O
CPLD	B-General_Concept
.	O
</s>
