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CdmaOne
Reading : Seedy - m a one
Field :
Portable telephone 3G cdmaOne |
Mark division multiplex connection(CDMA) system was utilized, portable telephone standard of the 2.5th generation (2.5G) one.
Cdma One standard is decided international economic organization CDG , the American continent and Asia such as America, Korea and Japan to the center.
In Japanthe portable telephoneservice where au of KDDI utilizescdmaOne is offered.
As for c, in addition data communication128kbpsand high speed (9.6kbps) etc. has feature until recently at the time of packet transmission utilization. In addition, because cdmaOne is introduced in world nations,internationalroaming is easy to actualize, (it is utilized with the name, "global passport").
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CD-MRW Mt.Rainier
Field :
Storage optical disk CD CD-MRW |
The SONY Philips corporationMicrosoft corporation and the like has propelled,toCD-RWstandardin order to do packet light/write entry.
CD-RW rewriting being possible, is expected furthermore from the fact that diffusion rate is high,as external memory medium of the personal computer which is substituted to the floppy disk, but presentlytothe floppy disk and the like packet light/write standard because the equalusing selfishnessis actualizedhas separated everyCD-R lighter/writer software.
Mt.Rainier asthispacket light/write standard is standardized,is the standard whichdesignates thatit mountspacket light/write entry functionas the standard function of OS as purpose.
With Mt.Rainier,in order to promote the correspondence on OS side,instruction set of driveside is standardized,e.g.,drive takes charge ofthe management of the bad sector, the kind of consideration where the
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CDN Contents delivery network
Full spelling : Contents Delivery Network
Field :
Internet backbone CDN
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It is the network which is optimizedin orderto transmitthe digital contents whose file size is large by way ofthe network. It constructs & uses CDN, it is
It points to the network whichcorresponds tothe large quantity transmission of the digital content ston arrow sense, in a broad sense,it points to the system which the function which is necessaryforthe distribution and saleof the digitalcontents one sort is arranged from management of the distribution point of the file to the rating certification system.
When as for the digital contents such asmusicand animated picture,size is large in comparison with the HTML fileand the like whichcirculates until recently on Internet,does transmission with the network crossing overgreat load falls on network.
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CD-R
Reading : Seedy - earl
Full spelling : Compact Disk Recordable
Field :
Storage optical disk CD CD-R
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CD where just one time can writethe data. It cannot eliminate the data which was written once.
Capacity the sameasusual CD 650MB (music 74 phase splitting this) ones and 700MB which recently appears (music 80 phase splitting are this) 2 types.
As for CD-R the organic pigment of gold and blue green color is applied by the record aspect, irradiates laser light to this and burns the pigment and records the data. The scorch hits the pitof usualCD (minute unevenness).
Method of data read-out being the sameas usual CD, irradiating laser light to the surface, plays back the data by the fact that you grasp reflected light.CD and CD-R method of grasping for simultaneous,withCD drive can also grasp CD-R,the personal computer use with the CD radio-cassette tape recorder play back CD-R which records music also can. |
CD-R FS
Reading : Seedy - earl f s
Full spelling : Compact Disk Recordable File System
Field :
Storage optical disk CD CD-R FS |
The file system for CD-R which SONYdeveloped.Whenentry is done in , wrote at a stroke, but in the system which corresponds to CD-R FSentry and postscript and deletion at the file unit (the false deletion which is by designating the data as invisibility) it is possible to do,it is possibleas othermemory mediumeasily such as hard disk to handle in the same way. Presently UDF has becomede facto standardasthe filesystemfor CD-R, because also SONY has supported this, CD-R FS has finished function.
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