<s>
TIFRAC	B-General_Concept
(	O
Tata	B-General_Concept
Institute	I-General_Concept
of	I-General_Concept
Fundamental	I-General_Concept
Research	I-General_Concept
Automatic	I-General_Concept
Calculator	I-General_Concept
)	O
was	O
the	O
first	O
computer	O
developed	O
in	O
India	O
,	O
at	O
the	O
Tata	O
Institute	O
of	O
Fundamental	O
Research	O
in	O
Mumbai	O
.	O
</s>
<s>
The	O
development	O
of	O
the	O
final	O
machine	O
was	O
started	O
in	O
1955	O
and	O
was	O
formally	O
commissioned	O
(	O
and	O
named	O
as	O
TIFRAC	B-General_Concept
,	O
by	O
Jawaharlal	O
Nehru	O
)	O
in	O
1960	O
.	O
</s>
<s>
TIFRAC	B-General_Concept
included	O
2,700	O
vacuum	O
tubes	O
,	O
1,700	O
germanium	O
diodes	O
and	O
12,500	O
resistors	O
.	O
</s>
<s>
The	O
main	O
assembly	O
of	O
TIFRAC	B-General_Concept
,	O
which	O
had	O
vacuum	O
tubes	O
was	O
housed	O
in	O
a	O
massive	O
steel	O
rack	O
measuring	O
18	O
feet	O
x	O
2.5	O
feet	O
x	O
8	O
feet	O
.	O
</s>
<s>
The	O
software	O
of	O
TIFRAC	B-General_Concept
were	O
written	O
in	O
a	O
series	O
of	O
commands	O
of	O
0	O
's	O
and	O
1	O
's	O
.	O
</s>
<s>
A	O
British-built	O
HEC	B-Device
2M	I-Device
computer	O
,	O
happened	O
to	O
be	O
the	O
first	O
digital	O
computer	O
in	O
India	O
,	O
which	O
was	O
imported	O
and	O
installed	O
in	O
Indian	O
Statistical	O
Institute	O
,	O
Kolkata	O
,	O
during	O
1955	O
.	O
</s>
