<s>
The	O
Zuse	O
Z23	B-Device
was	O
a	O
transistorized	O
computer	O
first	O
delivered	O
in	O
1961	O
,	O
designed	O
by	O
the	O
Zuse	O
KG	O
company	O
.	O
</s>
<s>
It	O
had	O
a	O
40-bit	O
word	O
length	O
and	O
used	O
an	O
8192	O
word	O
drum	B-General_Concept
memory	I-General_Concept
as	O
main	O
storage	O
,	O
with	O
256	O
words	O
of	O
rapid-access	O
ferrite	O
memory	O
.	O
</s>
<s>
It	O
was	O
similar	O
in	O
internal	O
design	O
to	O
the	O
earlier	O
vacuum	O
tube	O
Z22	B-Device
.	O
</s>
<s>
Related	O
variants	O
were	O
the	O
Z25	B-Device
and	O
Z26	O
models	O
.	O
</s>
<s>
The	O
Z23	B-Device
used	O
about	O
2700	O
transistors	O
and	O
7700	O
diodes	O
.	O
</s>
<s>
The	O
Z23	B-Device
had	O
an	O
Algol	B-Language
60	I-Language
compiler	O
.	O
</s>
<s>
The	O
Z23	B-Device
weighed	O
about	O
.	O
</s>
