<s>
The	O
CAB500	B-Device
was	O
a	O
French	O
transistor-based	O
drum	O
computer	O
,	O
designed	O
at	O
SEA	O
around	O
1957	O
by	O
Alice	O
Recoque	O
.	O
</s>
<s>
The	O
computer	O
had	O
an	O
incremental	O
compiler	O
for	O
a	O
language	O
,	O
PAF	O
(	O
Programmation	B-Language
Automatique	I-Language
des	I-Language
Formules	I-Language
)	O
similar	O
to	O
Fortran	B-Application
,	O
designed	O
by	O
Dimitri	O
Starynkevitch	O
in	O
1957-1959	O
.	O
</s>
<s>
It	O
had	O
a	O
magnetic	B-General_Concept
drum	I-General_Concept
memory	I-General_Concept
of	O
rotating	O
at	O
and	O
could	O
invert	O
a	O
square	O
matrix	O
of	O
order	O
25	O
in	O
half	O
an	O
hour	O
.	O
</s>
