<s>
The	O
GE-400	B-Device
series	I-Device
were	O
time-sharing	B-General_Concept
Information	O
Systems	O
computers	O
by	O
General	O
Electric	O
introduced	O
in	O
1964	O
and	O
shipped	O
until	O
1968	O
.	O
</s>
<s>
The	O
GE-400	B-Device
series	I-Device
(	O
Compatibles/400	O
)	O
came	O
in	O
models	O
:	O
415	O
,	O
425	O
,	O
435	O
(	O
1964	O
)	O
,	O
455	O
and	O
465	O
.	O
</s>
<s>
GE-400	B-Device
systems	O
had	O
a	O
word	O
length	O
of	O
24	O
bits	O
which	O
could	O
contain	O
binary	O
data	O
,	O
four	O
six-bit	O
BCD	O
characters	O
,	O
or	O
four	O
signed	O
decimal	O
digits	O
.	O
</s>
<s>
GE-400	B-Device
systems	O
could	O
have	O
up	O
to	O
32,768	O
words	O
(	O
132K	O
characters	O
)	O
of	O
magnetic-core	O
memory	O
with	O
a	O
cycle	O
time	O
of	O
2.7	O
microseconds	O
(	O
435	O
)	O
or	O
5.1	O
microseconds	O
(	O
425	O
)	O
.	O
</s>
<s>
The	O
systems	O
supported	O
up	O
to	O
eight	O
channels	B-Device
for	O
input/output	O
.	O
</s>
<s>
GE-400	B-Device
systems	O
featured	O
a	O
"	O
variable	O
length	O
,	O
relocatable	O
accumulator	B-General_Concept
"	O
which	O
could	O
be	O
set	O
programmatically	O
to	O
a	O
length	O
of	O
one	O
to	O
four	O
words	O
and	O
relocated	O
to	O
overlay	O
any	O
four	O
adjacent	O
locations	O
in	O
memory	O
(	O
modulo	O
four	O
)	O
.	O
</s>
<s>
"	O
The	O
accumulator	B-General_Concept
can	O
be	O
moved	O
to	O
the	O
data	O
to	O
be	O
processed	O
,	O
rather	O
than	O
moving	O
the	O
data.	O
"	O
</s>
<s>
The	O
400	O
series	O
was	O
succeeded	O
by	O
the	O
incompatible	O
36-bit	O
GE-600	B-Device
series	I-Device
.	O
</s>
