<s>
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.0	I-Operating_System
is	O
an	O
operating	B-General_Concept
system	I-General_Concept
developed	O
by	O
Apple	O
Computer	O
,	O
Inc	O
.	O
</s>
<s>
Released	O
on	O
March	O
16	O
,	O
1999	O
,	O
it	O
was	O
the	O
first	O
version	O
of	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
.	O
</s>
<s>
It	O
was	O
Apple	O
's	O
first	O
commercial	O
product	O
to	O
be	O
derived	O
from	O
"	O
Rhapsody	B-Operating_System
"	O
—	O
an	O
eventual	O
replacement	O
for	O
the	O
classic	B-Application
Mac	I-Application
OS	I-Application
derived	O
from	O
NeXTSTEP	B-Application
's	O
architecture	O
(	O
acquired	O
in	O
1997	O
as	O
part	O
of	O
Apple	O
's	O
purchase	O
of	O
NeXT	O
)	O
and	O
BSD-like	O
Mach	B-Operating_System
kernel	I-Operating_System
.	O
</s>
<s>
It	O
could	O
run	O
applications	O
written	O
using	O
the	O
"	O
Yellow	B-Operating_System
Box	I-Operating_System
"	O
API	O
,	O
and	O
featured	O
components	O
such	O
as	O
NetBoot	B-Device
,	O
the	O
QuickTime	B-Operating_System
Streaming	I-Operating_System
Server	I-Operating_System
,	O
components	O
carried	O
over	O
from	O
NeXTSTEP	B-Application
,	O
and	O
the	O
"	O
Blue	O
Box	O
"	O
environment	O
(	O
which	O
allows	O
a	O
Mac	B-Operating_System
OS	I-Operating_System
8.5	I-Operating_System
session	O
to	O
be	O
launched	O
as	O
a	O
separate	O
process	O
to	O
run	O
legacy	O
Mac	B-Application
OS	I-Application
software	O
)	O
.	O
</s>
<s>
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.0	I-Operating_System
was	O
a	O
prelude	O
to	O
the	O
first	O
consumer-oriented	O
version	O
of	O
the	O
OS	O
—	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
10.0	I-Operating_System
—	O
which	O
was	O
released	O
in	O
2001	O
.	O
</s>
<s>
It	O
did	O
not	O
include	O
the	O
eventual	O
Aqua	B-Application
user	I-Application
interface	I-Application
(	O
instead	O
using	O
NeXTSTEP	B-Application
's	O
Workspace	B-Application
Manager	I-Application
shell	O
mixed	O
with	O
aspects	O
of	O
Mac	B-Operating_System
OS	I-Operating_System
8	I-Operating_System
's	O
"	O
Platinum	B-Operating_System
"	O
user	O
interface	O
)	O
or	O
Carbon	B-Operating_System
API	I-Operating_System
.	O
</s>
<s>
Server	O
1.0	O
contains	O
a	O
mix	O
of	O
features	O
from	O
the	O
classic	B-Application
Mac	I-Application
OS	I-Application
,	O
NeXTSTEP	B-Application
and	O
Mac	B-Application
OS	I-Application
X	I-Application
.	O
</s>
<s>
Like	O
the	O
classic	B-Application
Mac	I-Application
OS	I-Application
,	O
it	O
has	O
a	O
single	O
menu	O
bar	O
across	O
the	O
top	O
of	O
the	O
screen	O
,	O
but	O
file	O
management	O
is	O
performed	O
in	O
Workspace	B-Application
Manager	I-Application
from	O
NeXTSTEP	B-Application
instead	O
of	O
the	O
classic	B-Application
Mac	I-Application
OS	I-Application
Finder	B-Application
.	O
</s>
<s>
The	O
user	O
interface	O
still	O
uses	O
the	O
Display	O
PostScript-based	O
window	O
server	O
from	O
NeXTSTEP	B-Application
,	O
instead	O
of	O
the	O
Quartz-based	O
WindowServer	O
,	O
which	O
would	O
appear	O
a	O
year	O
later	O
in	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Public	I-Operating_System
Beta	I-Operating_System
.	O
</s>
<s>
Unlike	O
any	O
version	O
of	O
Classic	B-Application
Mac	I-Application
OS	I-Application
,	O
windows	O
with	O
unsaved	O
content	O
display	O
a	O
black	O
dot	O
in	O
the	O
window	O
close	O
button	O
like	O
NeXTSTEP	B-Application
did	O
.	O
</s>
<s>
The	O
Dock	O
and	O
the	O
Aqua	B-Application
appearance	O
were	O
not	O
included	O
;	O
these	O
were	O
added	O
later	O
in	O
Mac	B-Application
OS	I-Application
X	I-Application
.	O
</s>
<s>
"	O
Carbon	B-Operating_System
"	O
,	O
essentially	O
a	O
subset	O
of	O
"	B-Application
classic	I-Application
"	I-Application
Mac	I-Application
OS	I-Application
API	O
calls	O
,	O
was	O
also	O
absent	O
.	O
</s>
<s>
This	O
meant	O
that	O
the	O
only	O
native	O
applications	O
for	O
OS	B-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.0	I-Operating_System
were	O
written	O
for	O
the	O
"	O
Yellow	B-Operating_System
Box	I-Operating_System
"	O
API	O
,	O
which	O
went	O
on	O
to	O
become	O
known	O
as	O
"	O
Cocoa	B-Operating_System
"	O
.	O
</s>
<s>
Furthermore	O
,	O
Apple	O
's	O
own	O
FireWire	B-Protocol
was	O
not	O
supported	O
.	O
</s>
<s>
Server	O
1.0	O
also	O
includes	O
the	O
first	O
version	O
of	O
a	O
NetBoot	B-Device
server	O
,	O
which	O
allows	O
computers	O
to	O
boot	O
from	O
a	O
disk	O
image	O
over	O
a	O
local	O
network	O
.	O
</s>
<s>
This	O
made	O
it	O
difficult	O
for	O
users	O
to	O
damage	O
the	O
OS	O
by	O
installing	O
software	O
as	O
soon	O
as	O
they	O
signed	O
out	O
,	O
the	O
machine	O
would	O
re-boot	O
with	O
a	O
fresh	O
OS	O
from	O
the	O
NetBoot	B-Device
server	O
.	O
</s>
<s>
To	O
run	O
classic	B-Application
Mac	I-Application
OS	I-Application
applications	O
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.0	I-Operating_System
includes	O
the	O
"	O
Blue	O
Box	O
"	O
,	O
which	O
essentially	O
ran	O
a	O
copy	O
of	O
Mac	B-Operating_System
OS	I-Operating_System
8.5.1	I-Operating_System
(	O
this	O
could	O
be	O
updated	O
to	O
Mac	O
OS	O
8.6	O
in	O
version	O
1.2	O
and	O
later	O
)	O
in	O
a	O
separate	O
process	O
as	O
an	O
emulation	O
layer	O
.	O
</s>
<s>
Blue	O
Box	O
would	O
eventually	O
be	O
renamed	O
as	O
the	O
"	O
Classic	O
Environment	O
"	O
in	O
Mac	B-Application
OS	I-Application
X	I-Application
,	O
featuring	O
the	O
latest	O
version	O
of	O
Mac	B-Operating_System
OS	I-Operating_System
9	I-Operating_System
.	O
</s>
<s>
Although	O
marketed	O
as	O
a	O
large	O
advancement	O
over	O
AppleShare	B-General_Concept
IP	I-General_Concept
,	O
it	O
cost	O
$499	O
and	O
did	O
not	O
support	O
Apple	O
's	O
own	O
FireWire	B-Protocol
,	O
making	O
it	O
incompatible	O
with	O
products	O
like	O
MicroNet	O
's	O
SANcube	O
,	O
a	O
line	O
of	O
external	O
high-speed	O
high-capacity	O
storage	O
systems	O
(	O
debuting	O
in	O
the	O
year	O
2000	O
for	O
$4599	O
to	O
$6999	O
)	O
.	O
</s>
<s>
Buyers	O
of	O
OS	B-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.0	I-Operating_System
(	O
who	O
often	O
purchased	O
new	O
Macs	O
to	O
run	O
it	O
)	O
and	O
the	O
SANcube	O
were	O
forced	O
to	O
downgrade	O
to	O
AppleShare	B-General_Concept
IP	I-General_Concept
in	O
order	O
to	O
use	O
it	O
.	O
</s>
<s>
OS	B-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.0	I-Operating_System
was	O
quickly	O
orphaned	O
,	O
in	O
favor	O
of	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
10.0	I-Operating_System
,	O
with	O
no	O
discount	O
for	O
those	O
who	O
purchased	O
it	O
and	O
wished	O
to	O
purchase	O
OS	B-Operating_System
X	I-Operating_System
Server	I-Operating_System
10.0	O
.	O
</s>
<s>
VersionCode	O
nameDateOS	O
nameDarwin	O
versionMac	O
OS	B-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.0Hera1O9March	O
16	O
,	O
1999Rhapsody	O
5.30.1Mac	O
OS	B-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.0.1April	O
15	O
,	O
1999Rhapsody	O
5.40.2Mac	O
OS	B-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.0.2Hera1O9	O
+Loki2G1July	O
29	O
,	O
1999Rhapsody	O
5.50.3Mac	O
OS	B-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.2Pele1Q10January	O
14	O
,	O
2000Rhapsody	O
5.6	O
?	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
1.2	O
v3Medusa1E3October	O
27	O
,	O
2000Rhapsody	O
5.6	O
?	O
</s>
