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CDS Contents delivery service

Full spelling : Contents Delivery Service
Field :
Internet backbone CDS

The server who stores the copy of the Web contents in the provider in the world is arranged, by the fact that the user is made to accessthe serverof the vicinity,the service which it streamlines & accelerates contents transmission.

As for the major commercial business Websight, burden of the transmission cost which is increased yearly with the increase of Internet user and the broadband conversion of zone and the increase of the contents quantity, became the heavy load.

So far,expandingthe server and the buying to the superior type it changes and there was no expedient which corresponds to the increase of the access which should expand,plant investment such as acceleration of the circuit, but if it compares to such direct investment with the appearance of contents delivery service, at inexpensive fee, arranging the transmission servergroupin the entire world,when it doesload distribution, it reached the point where you can obtain the same effect. Because of this, presently the major sight of the world has utilized this service.

CDSL

Reading : Seedy - s l
Full spelling : Consumer Digital Subscriber Line
Field :
Communication service broadband XDSL CDSL

The xDSL technology which the Rockwell Semiconductor Systems corporationdeveloped(the high-speed data communication technology which uses the telephone line) one. You connect CDSL modem to the circuit, cando data communication simultaneously with telephone and FAX.Becausewith ADSL it is notnecessaryto install the amount wave machine which is called necessary by all means in member's house, that much introduction has become easy. Central telephone exchange -> user direction (the descent) as for transmission rate maximum 1Mbps, the user -> central telephone exchange direction (rising) as for transmission rate it is maximum 128kbps.G.992.2(G.lite) with relatively close feature, furthermore because it is high speed from CDSL, CDSL excessively has not spread.

CD-Text

Field :
Storage optical disk CD CD-Text

The formatof CD which records the letter data tomusicCD.It is stipulatedas additional specification of CD-DA standard.

6000 bytes(the half angle 6000 letter and the full size 3000 letter) it is possible in music CD 1, to record information, it is possible to record the information of title and the artist and the lyric etc.. Being correspondence possible to 8 languages, Japanese (kana and Chinese character) it can indicate.

While re-raising sound, by using the private player, to indicate it is possible the information in printing which is recorded. It can play back justsoundeven with the general CD player.

CDV
Reading : Seedy - buoy
Field :
Storage optical disk CD CDV

At oneof extended specifications of music CD standard, image of maximum of 5 parts and the specification which can record the sound of maximum of 20 parts. With the standard which appears in 1987, it became alsothe prototypeof of single CD after.

You usethe samediameter 12cm disk,asusual CD image (sound to attach) 5 minutes it can record peripheral side 4cm "VIDEO PART" and inside perimeter side 8cm sound 20 minutes it can be recorded you have become "AUDIO PART".

Because rotary speed differs in both parts, about 15 - 20 seconds there is a blank part. It can play back AUDIO PARTwith the usualmusic CD player, but, the equipment of CDV correspondence is necessary in the playback of VIDEO PART.

Among the specifications of CDV, standard of music CD of the diameter 8cm which frees AUDIO PART, issingleCD standard (CD Single). VIDEO PART was freed was also a standard, "CDV Single" (Video Single Disc), but this went out without spreading.