<s>
Strela	B-Device
computer	I-Device
(	O
)	O
was	O
the	O
first	O
mainframe	B-Architecture
vacuum-tube	B-Device
computer	I-Device
manufactured	O
serially	O
in	O
the	O
Soviet	O
Union	O
,	O
beginning	O
in	O
1953	O
.	O
</s>
<s>
This	O
first-generation	B-Device
computer	I-Device
had	O
6200	O
vacuum	O
tubes	O
and	O
60,000	O
semiconductor	O
diodes	O
.	O
</s>
<s>
Strela	B-Device
's	O
speed	O
was	O
2000	O
operations	O
per	O
second	O
.	O
</s>
<s>
Its	O
floating-point	B-Algorithm
arithmetic	I-Algorithm
was	O
based	O
on	O
43-bit	O
floating	B-Algorithm
point	I-Algorithm
words	O
,	O
with	O
a	O
signed	O
35-bit	O
mantissa	B-Algorithm
and	O
a	O
signed	O
6-bit	O
exponent	O
.	O
</s>
<s>
Operative	O
Williams	B-General_Concept
tube	I-General_Concept
memory	O
(	O
RAM	O
)	O
had	O
2048	O
words	O
.	O
</s>
<s>
It	O
used	O
punched	B-Architecture
cards	I-Architecture
or	O
magnetic	O
tape	O
for	O
data	O
input	O
and	O
magnetic	O
tape	O
,	O
punched	B-Architecture
cards	I-Architecture
and/or	O
wide	O
printer	O
for	O
data	O
.	O
</s>
<s>
The	O
last	O
version	O
of	O
Strela	B-Device
used	O
a	O
4096-word	O
magnetic	B-General_Concept
drum	I-General_Concept
,	O
rotating	O
at	O
6000rpm	O
.	O
</s>
<s>
While	O
Yuri	O
Bazilevsky	O
was	O
officially	O
Strela	B-Device
's	O
chief	O
designer	O
,	O
Bashir	O
Rameyev	O
,	O
who	O
developed	O
the	O
project	O
prior	O
to	O
Bazilevsky	O
's	O
appointment	O
,	O
could	O
be	O
considered	O
its	O
main	O
inventor	O
.	O
</s>
<s>
Strela	B-Device
was	O
constructed	O
at	O
the	O
Special	O
Design	O
Bureau	O
245	O
(	O
Argon	O
R&D	O
Institute	O
since	O
1986	O
)	O
in	O
Moscow	O
.	O
</s>
<s>
Strelas	B-Device
were	O
manufactured	O
by	O
the	O
Moscow	O
Plant	O
of	O
Computing-Analytical	O
Machines	O
(счетно-	O
аналитических	O
машин	O
)	O
during	O
1953	O
–	O
1957	O
;	O
7	O
copies	O
were	O
manufactured	O
.	O
</s>
<s>
In	O
1954	O
,	O
the	O
designers	O
of	O
Strela	B-Device
were	O
awarded	O
the	O
Stalin	O
Prize	O
of	O
1st	O
degree	O
(	O
Bashir	O
Rameyev	O
,	O
Yu	O
.	O
</s>
<s>
The	O
impetus	O
for	O
the	O
development	O
of	O
Strela	B-Device
was	O
a	O
BBC	O
broadcast	O
heard	O
by	O
Bashir	O
Rameyev	O
about	O
the	O
American	O
development	O
of	O
ENIAC	B-Device
.	O
</s>
