<s>
The	O
Marconi	O
Transistorized	O
Automatic	O
Computer	O
was	O
the	O
first	O
all-transistor	O
computer	O
built	O
by	O
Britain	O
's	O
Marconi	O
Company	O
.	O
</s>
<s>
The	O
computer	O
employed	O
germanium	O
transistors	B-Application
which	O
by	O
this	O
time	O
were	O
sufficiently	O
reliable	O
in	O
room	O
temperatures	O
kept	O
below	O
about	O
23	O
degrees	O
C	O
.	O
The	O
type	O
S3301	O
was	O
a	O
500kHz	O
clocked	O
,	O
20-bit	O
word	O
machine	O
with	O
two	O
Mullard	O
core	B-General_Concept
memory	I-General_Concept
stores	O
providing	O
4k	O
of	O
20-bit	O
data	O
.	O
</s>
<s>
Apart	O
from	O
transistor	B-Application
failure	O
,	O
other	O
common	O
faults	O
included	O
power	O
supply	O
capacitors	O
'	O
drying	O
out	O
 '	O
resulting	O
in	O
excess	O
ripple	O
,	O
and	O
poor	O
connections	O
on	O
the	O
input/output	O
highway	O
.	O
</s>
