Information Technology Reference
In-Depth Information
TABLE 2.1: A qualitative comparison of different P2P applications.
Name
Type
Protocol
Architecture
Additional Information
BitComet
[Bit-
Comet,
2009]
File sharing
BitTorrent
Structured
Closed source; adware
eMule
[eMule,
2009]
File sharing
eDonkey2000,
Kad
Decentralized
GPL open source; has a large
user space
GreenTea
[Green-
Tea
Tech-
nologies
Inc.,
2009]
Networked
computing
Proprietary
Hybrid
Closed
source;
commercial
product
KaZaA
[KaZaA,
2009]
File sharing
(music)
FastTrack
Hybrid
Closed source; adware/spyware
iMesh
[iMesh,
2009]
File sharing
(music
eDonkey2000,
FastTrack,
Gnutella
Hybrid
Closed source; freeware; sup-
ports social networks, purchase
of copyrighted materials
and
video)
Joost
[Joost,
2009]
Multimedia
streaming
P2PTV
Hybrid
Closed source; freeware; deliv-
ers near-TV resolution images;
ad-supported service
Napster
[Nap-
ster,
2009]
File sharing
(music)
Napster
Centralized
Closed source; freeware; ac-
quired by Roxio in 2003, pro-
viding paid music service with-
out P2P technology
PPLive
[PPLive,
2009]
Multimedia
streaming
P2PTV
Hybrid
Closed
source;
freeware;
ad-
supported service
Skype
[Skype,
2009]
Voice-over-
IP (VoIP)
KaZaA-
alike
Hybrid
Closed source; freeware; offers
paid service to initiate and re-
ceive calls via regular telephone
numbers
Tribler
[Tribler,
2009]
File sharing
(video)
BitTorrent
Structured
GPL open source; incorporates
a keyword search protocol; sup-
ports social networks for con-
tent recommendation
WinMX
[WinMX
World,
2009]
File sharing
(music)
OpenNap,
proprietary
WPNP
Centralized
Closed source; freeware; o
cial
WinMX
central
servers
were
shut down in 2005
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