<s>
IBM	B-Application
System	I-Application
R	I-Application
is	O
a	O
database	O
system	O
built	O
as	O
a	O
research	O
project	O
at	O
IBM	O
's	O
San	O
Jose	O
Research	O
Laboratory	O
beginning	O
in	O
1974	O
.	O
</s>
<s>
System	O
R	O
was	O
a	O
seminal	O
project	O
:	O
it	O
was	O
the	O
first	O
implementation	O
of	O
SQL	B-Language
,	O
which	O
has	O
since	O
become	O
the	O
standard	O
relational	B-Architecture
data	O
query	B-Language
language	I-Language
.	O
</s>
<s>
It	O
was	O
also	O
the	O
first	O
system	O
to	O
demonstrate	O
that	O
a	O
relational	B-Application
database	I-Application
management	I-Application
system	I-Application
could	O
provide	O
good	O
transaction	B-General_Concept
processing	I-General_Concept
performance	O
.	O
</s>
<s>
Design	O
decisions	O
in	O
System	O
R	O
,	O
as	O
well	O
as	O
some	O
fundamental	O
algorithm	O
choices	O
(	O
such	O
as	O
the	O
dynamic	B-Algorithm
programming	I-Algorithm
algorithm	O
used	O
in	O
query	B-Language
optimization	I-Language
)	O
,	O
influenced	O
many	O
later	O
relational	B-Architecture
systems	O
.	O
</s>
