<s>
Thin-film	B-General_Concept
memory	I-General_Concept
is	O
a	O
high-speed	O
alternative	O
to	O
core	B-General_Concept
memory	I-General_Concept
developed	O
by	O
Sperry	O
Rand	O
in	O
a	O
government-funded	O
research	O
project	O
.	O
</s>
<s>
Instead	O
of	O
threading	O
individual	O
ferrite	O
cores	O
on	O
wires	O
,	O
thin-film	B-General_Concept
memory	I-General_Concept
consisted	O
of	O
4-micrometer	O
thick	O
dots	O
of	O
permalloy	O
,	O
an	O
iron	O
–	O
nickel	O
alloy	O
,	O
deposited	O
on	O
small	O
glass	O
plates	O
by	O
vacuum	O
evaporation	O
techniques	O
and	O
a	O
mask	O
.	O
</s>
<s>
In	O
1962	O
,	O
the	O
UNIVAC	O
1107	O
,	O
intended	O
for	O
the	O
civilian	O
marketplace	O
,	O
used	O
thin-film	B-General_Concept
memory	I-General_Concept
only	O
for	O
its	O
128-word	O
general	O
register	O
stack	O
.	O
</s>
<s>
Military	B-Device
computers	I-Device
,	O
where	O
cost	O
was	O
less	O
of	O
a	O
concern	O
,	O
used	O
larger	O
amounts	O
of	O
thin-film	B-General_Concept
memory	I-General_Concept
.	O
</s>
<s>
Thin	O
film	O
was	O
also	O
used	O
in	O
a	O
number	O
of	O
high-speed	O
computer	O
projects	O
,	O
including	O
the	O
high-end	O
of	O
the	O
IBM	B-Application
System/360	I-Application
line	O
,	O
but	O
general	O
advances	O
in	O
core	O
tended	O
to	O
keep	O
pace	O
.	O
</s>
