P3P

Reading: Tweet three tweet
Full spelling: Platform for Privacy Preferences
Field:
Security > privacy > P3P

On Internet, technical specification in order to exchange private information between the operator of the Web sight and the visitor of the sight. In 2002 April it was standardized in WWW-related standardization group W3C.

P3P while protecting private information, designates that it does electronic commerce smoothly as purpose, try to be able to control the user offers its own information to some Web sight. OPS which the NETSCAPE Communications corporation and the like lectures (Open Profiling Standard) with on the basis of Platform for of the Microsoft corporation Privacy, specification was examined.

P4P <Payment four performance>

Reading: Tweet four tweet
Full spelling: Pay for Performance
Field:
e business > net announcement > P4P

With the search engine search the occasion where it does, being linked to search keyword with the announcement which is indicated, the system where announcement charge is assigned in the advertiser according to the frequency where the user clicks announcement.

With P4P, the bid system where the advertiser bids vis-a-vis the search word which we would like to be linked to announcement (auction system) we have adopted, publication ranking of announcement decides with the unevenness of the bid amount. [obachiyua] offers, “[adowazu] announcement” “of [suponsadosachi]” and Google offer represents. Method of calling is not fixed, also keyword match announcement, text match announcement, search gearing type announcement, listing announcement, sponsor sight announcement and payment per click announcement etc are called by the quality of the announcement system.

P2P <P to P>

Reading: Two Pia Pia
Full spelling: Peer to Peer
Alias:
Two Pia Pia
Field:
Internet > file sharing > P2P

Beginning of this system was announced in 1999 January “Napster”. As for this, with the system which can exchange the music data between the individuals via Internet, being free, it spread explosively from the fact that music enters into the hand. With Napster, you connect each computer to the central server whom the Napster corporation manages, you transmit the list of the audio file which is retained in the personal computer of the user. It searches the music file which the other user possesses mutually due to the fact that the user in the world shares this, it is possible to download. The central server has done only the offer of the file inquiry database and the management of connection of the user, exchange of the music data itself is done by the direct connect between the users.

P2P software <File exchange software>

Alias:
File sharing software, file exchange software and file sharing software
Field:
Internet > file sharing > P2P software

Through Internet, the software which shares the file between the many and unspecified persons computers. Assuming, that it has become the hotbed of the illegal distribution of information which begins infringement of copyright it has become the object of criticism.

Technically separately there are 2 types of central server type and pure type largely. The form where as for former, the central server manages the information of the user which it is connected, and the list of the file only transfer of the file does directly between the users. Napster which has been ahead per seat the file sharing software takes this form. Latter, there is no server who manages information vis-a-vis this, it is the form where all items of information between the users circulate to bucket relay system. When but the communication whose former is more wasteful is little efficient, the server stops, the whole service stops. Latter when the user increases, network is congested accelerating, but wherever one place stopping, there are no times when the whole network stops.

P54C

Reading: Tweet, - it is the sea
Field:
Microprocessor > x86/Intel > Intel > P54C