<s>
Computer	O
Associates	O
Panvalet	B-Application
(	O
also	O
known	O
as	O
CA-Panvalet	B-Application
)	O
is	O
a	O
revision	B-Architecture
control	I-Architecture
and	O
source	B-Architecture
code	I-Architecture
management	I-Architecture
system	O
for	O
mainframe	O
computers	O
such	O
as	O
the	O
IBM	B-Device
System	I-Device
z	I-Device
and	O
IBM	B-Device
System/370	I-Device
running	O
the	O
z/OS	B-Application
and	O
z/VSE	B-Application
operating	O
systems	O
.	O
</s>
<s>
Panvalet	B-Application
uses	O
a	O
client-server	B-Operating_System
model	I-Operating_System
where	O
users	O
check-out	O
files	O
to	O
change	O
and	O
check	O
them	O
back	O
into	O
the	O
repository	O
when	O
finished	O
.	O
</s>
<s>
It	O
can	O
be	O
used	O
to	O
manage	O
program	O
source	O
code	O
,	O
JCL	B-Application
,	O
Macros/commands	O
for	O
utilities	O
such	O
as	O
Easytrieve	B-Language
and	O
object	B-Application
module	I-Application
files	I-Application
.	O
</s>
<s>
Panvalet	B-Application
was	O
developed	O
by	O
Pansophic	O
Systems	O
in	O
1969	O
as	O
a	O
program	O
to	O
store	O
and	O
manage	O
computer	O
program	O
source	O
code	O
on	O
direct-access	B-Application
storage	I-Application
devices	I-Application
.	O
</s>
<s>
Before	O
Panvalet	B-Application
code	O
was	O
saved	O
as	O
paper	O
punch	B-Architecture
cards	I-Architecture
,	O
typically	O
with	O
500	O
to	O
3,000	O
cards	O
per	O
program	O
,	O
often	O
1,000,000	O
or	O
more	O
per	O
data	O
center	O
.	O
</s>
<s>
In	O
1978	O
,	O
it	O
was	O
reported	O
that	O
Panvalet	B-Application
,	O
at	O
the	O
time	O
a	O
product	O
of	O
Pansophic	O
Systems	O
,	O
Inc	O
,	O
was	O
in	O
use	O
at	O
over	O
3,000	O
sites	O
.	O
</s>
<s>
Computer	O
Associates	O
acquired	O
Panvalet	B-Application
in	O
1991	O
when	O
it	O
purchased	O
Pansophic	O
Systems	O
for	O
$390M	O
.	O
</s>
<s>
Broadcom	O
acquired	O
Panvalet	B-Application
in	O
2018	O
when	O
it	O
purchased	O
Computer	O
Associates	O
.	O
</s>
