<s>
Squawk	O
is	O
a	O
Java	B-Language
micro	I-Language
edition	I-Language
virtual	B-Language
machine	I-Language
for	O
embedded	O
system	O
and	O
small	O
devices	O
.	O
</s>
<s>
Most	O
virtual	O
machines	O
for	O
the	O
Java	B-Device
platform	I-Device
are	O
written	O
in	O
low	O
level	O
native	O
languages	O
such	O
as	O
C/C	O
++	O
and	O
assembler	B-Language
;	O
what	O
makes	O
Squawk	O
different	O
is	O
that	O
Squawk	O
's	O
core	O
is	O
mostly	O
written	O
in	O
Java	B-Language
(	O
this	O
is	O
called	O
a	O
meta-circular	B-Application
interpreter	I-Application
)	O
.	O
</s>
<s>
A	O
Java	B-Language
implementation	O
provides	O
ease	O
of	O
portability	O
,	O
and	O
integration	O
of	O
virtual	B-Language
machine	I-Language
and	O
application	O
resources	O
such	O
as	O
objects	O
,	O
threads	O
,	O
and	O
operating-system	O
interfaces	O
.	O
</s>
<s>
The	O
Squawk	B-Language
Virtual	I-Language
Machine	I-Language
figure	O
can	O
be	O
simplified	O
as	O
:	O
</s>
<s>
The	O
research	O
project	O
was	O
inspired	O
by	O
Squeak	B-Operating_System
.	O
</s>
<s>
Squawk	O
has	O
a	O
Java	B-Language
ME	I-Language
heritage	O
and	O
features	O
a	O
small	O
memory	O
footprint	O
.	O
</s>
<s>
In	O
Squawk	O
,	O
one	O
or	O
more	O
applications	O
can	O
run	O
in	O
the	O
single	O
JVM	B-Language
.	O
</s>
