<s>
Retrospect	B-Operating_System
is	O
a	O
family	O
of	O
software	O
applications	O
that	O
back	B-Protocol
up	I-Protocol
computers	O
running	O
the	O
macOS	B-Application
,	O
Microsoft	B-Application
Windows	I-Application
,	O
and	O
Linux	B-Application
(	O
and	O
until	O
2019	O
classic	B-Application
Mac	I-Application
OS	I-Application
)	O
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
It	O
uses	O
the	O
client	B-Protocol
–	I-Protocol
server	I-Protocol
backup	I-Protocol
model	O
.	O
</s>
<s>
It	O
performs	O
three	O
types	O
of	O
backup	B-Protocol
:	O
"	O
A	O
Recycle	O
backup	B-Protocol
deletes	O
a	O
backup	B-Protocol
set	O
and	O
adds	O
all	O
files	O
,	O
and	O
a	O
New	O
Media	O
backup	B-Protocol
creates	O
a	O
new	O
backup	B-Protocol
set	O
,	O
copying	O
all	O
the	O
files	O
not	O
included	O
.	O
</s>
<s>
Once	O
installed	O
,	O
scripts	O
can	O
also	O
be	O
introduced	O
to	O
enable	O
Scheduled	O
backup	B-Protocol
using	O
predetermined	O
information	O
supplied	O
by	O
the	O
administrator	O
.	O
</s>
<s>
This	O
information	O
contains	O
source	O
,	O
destination	O
and	O
other	O
criteria	O
,	O
which	O
enables	O
a	O
backup	B-Protocol
session	O
to	O
scan	O
and	O
back	B-Protocol
up	I-Protocol
one	O
volume	O
at	O
a	O
time	O
,	O
requiring	O
less	O
memory	O
than	O
an	O
immediate	O
backup.	O
"	O
</s>
<s>
The	O
product	O
is	O
used	O
for	O
GUI-scripted	O
backup	B-Protocol
.	O
</s>
<s>
A	O
"	O
premature	O
"	O
release	O
of	O
Retrospect	B-Operating_System
8	O
in	O
2009	O
undermined	O
its	O
market	O
after	O
Apple	O
introduced	O
its	O
competing	O
Time	B-Operating_System
Machine	I-Operating_System
in	O
late	O
2007	O
.	O
</s>
<s>
In	O
2010	O
,	O
Retrospect	B-Operating_System
was	O
sold	O
to	O
Roxio	O
,	O
owned	O
by	O
Sonic	O
Solutions	O
,	O
which	O
was	O
then	O
in	O
turn	O
acquired	O
by	O
Rovi	O
.	O
</s>
<s>
Retrospect	B-Operating_System
,	O
Inc	O
.	O
was	O
formed	O
by	O
a	O
core	O
team	O
most	O
of	O
whom	O
had	O
worked	O
on	O
the	O
product	O
for	O
ten	O
years	O
or	O
more	O
.	O
</s>
<s>
Retrospect	B-Operating_System
9	O
was	O
introduced	O
in	O
2012	O
,	O
to	O
positive	O
reviews	O
.	O
</s>
<s>
In	O
June	O
2019	O
the	O
holding	O
company	O
StorCentric	O
—	O
which	O
also	O
owns	O
Drobo	B-Application
—	O
announced	O
that	O
it	O
had	O
acquired	O
Retrospect	B-Operating_System
Inc.	O
,	O
which	O
it	O
will	O
operate	O
as	O
an	O
wholly	O
owned	O
independent	O
subsidiary	O
.	O
</s>
