<s>
Newsqueak	B-Language
is	O
a	O
concurrent	B-Architecture
programming	I-Architecture
language	O
for	O
writing	O
application	B-Application
software	I-Application
with	O
interactive	O
graphical	B-Application
user	I-Application
interfaces	I-Application
.	O
</s>
<s>
Newsqueak	B-Language
's	O
syntax	O
and	O
semantics	O
are	O
influenced	O
by	O
the	O
C	B-Language
language	I-Language
,	O
but	O
its	O
approach	O
to	O
concurrency	B-Architecture
was	O
inspired	O
by	O
C	B-Language
.	O
A	O
.	O
R	O
.	O
Hoare	O
's	O
communicating	O
sequential	O
processes	O
(	O
CSP	O
)	O
.	O
</s>
<s>
However	O
,	O
in	O
Newsqueak	B-Language
,	O
channels	B-Operating_System
are	O
first-class	O
objects	O
,	O
with	O
dynamic	O
process	O
creation	O
and	O
dynamic	O
channel	O
creation	O
.	O
</s>
<s>
Newsqueak	B-Language
was	O
developed	O
from	O
an	O
earlier	O
,	O
smaller	O
,	O
language	O
,	O
called	O
Squeak	B-Operating_System
(	O
not	O
to	O
be	O
confused	O
with	O
the	O
Smalltalk	B-Application
implementation	O
Squeak	B-Operating_System
)	O
.	O
</s>
<s>
It	O
was	O
developed	O
by	O
Luca	O
Cardelli	O
and	O
Rob	O
Pike	O
at	O
Bell	O
Labs	O
in	O
the	O
first	O
half	O
of	O
the	O
1980s	O
as	O
a	O
language	O
for	O
implementing	O
graphical	B-Application
user	I-Application
interfaces	I-Application
.	O
</s>
<s>
Both	O
languages	O
were	O
presented	O
as	O
"	O
a	O
language	O
for	O
communicating	O
with	O
mice	B-Device
"	O
:	O
their	O
main	O
aim	O
was	O
to	O
model	O
the	O
concurrent	B-Architecture
nature	O
of	O
programs	O
interacting	O
with	O
multiple	O
input	O
devices	O
,	O
viz.	O
,	O
keyboards	B-Device
and	O
mice	B-Device
.	O
</s>
<s>
Newsqueak	B-Language
is	O
an	O
interpreted	O
language	O
.	O
</s>
<s>
The	O
ideas	O
present	O
in	O
Newsqueak	B-Language
were	O
further	O
developed	O
in	O
the	O
programming	O
languages	O
Alef	B-Application
,	O
Limbo	B-Application
,	O
and	O
Go	B-Application
.	O
</s>
