<s>
House	O
(	O
acronym	O
for	O
Haskell	B-Application
User	I-Application
's	I-Application
Operating	I-Application
System	I-Application
and	I-Application
Environment	I-Application
)	O
is	O
an	O
experimental	O
open	B-Application
source	I-Application
operating	B-General_Concept
system	I-General_Concept
written	O
in	O
Haskell	B-Language
.	O
</s>
<s>
It	O
was	O
written	O
to	O
explore	O
system	B-Application
programming	I-Application
in	O
a	O
functional	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
It	O
includes	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
,	O
several	O
demos	O
,	O
and	O
its	O
network	B-Protocol
protocol	I-Protocol
stack	I-Protocol
provides	O
basic	O
support	O
for	O
Ethernet	O
,	O
IPv4	B-Protocol
,	O
ARP	O
,	O
DHCP	B-Protocol
,	O
ICMP	B-Protocol
(	O
ping	O
)	O
,	O
UDP	B-Protocol
,	O
TFTP	B-Device
,	O
and	O
TCP	B-Protocol
.	O
</s>
