SCSI card

Reading: [sukajikado]
Field:
Personal computer > extended card > SCSI card

In one kind of extended card, the card where the connected terminal in order to connect the peripheral device which corresponds to SCSI standard to the computer is mounted. SCSI standard at high speed, from the fact that many equipment can be connected, is adopted may be the server et. al in comparison with ATAPI standard. As for SCSI standard after Ultra 160 SCSI because full speed has exceeded the bandwidth of 32 bit PCI bus, in the usual personal computer and the like it cannot pull out sufficient efficiency. Because of this, also the SCSI card which corresponds to 64 bits PCI which are utilized with the advanced computer and the like is sold. Because the card of the Adaptec corporation make most it has spread, specification of product of the same company has become in fact standard.

SCSL CSL

Alias:
Sun Community Source License
Field:
Programming > Java > SCSL

The Sun Microsystems corporation programming language of the same company (and its development execution environment) to the license system which is applied “Java 2”.

Until recently, if large amount early cost is not paid, it could not obtain the source code, but as for use and correction of the cord/code being gratuitous basically, it reached the point where it can do. Other companies sharing modification the cord/code which it procures result ones which it developed in the base and the necessity to return progressive technology to Sun without, Sun there are no times when rent is claimed vis-a-vis that.

The source code being gratuitous, it is distributed, anyone freely alteration the license system which adopts the method of thinking the open source software of Linux and the like which re-can be distributed. However, Java 2 (or the derivative) installing in the respective company product, you sell, increases the profit it is, kind of when, because it is necessary to pay the license charge which responds to the profit, the complete open source you cannot say.

SCVP

Reading: S cv tweet
Full spelling: Server-Based Certificate Validation Protocol
Field:
Security > electronic signature > SCVP

The protocol which verifies the effectiveness of the digital certificate in real time. The SCVP server it concentrates manages CA itself and, VA which CRL manages. But as for SCVP, the protocol which has the kind of function which is similar to OCSP, with SCVP verification related to reliance it has reached the point where server side substitutes with OCSP vis-a-vis the client verifying the reliance relationship of the certificate. Because of this, SCVP load of the client to be light (as for server load becomes heavy), is suitable for the utilization with the small-sized equipment conversely. As for SCVP presently draft is open with IETF, continuation standardization job is done.

SDA SD association

Alias:
SD Association, SD card association, SD Card Association
Field:
Mobile > memory card > SDA

The economic organization which assures the guaranty and spread promotion etc of compatibility of standardization and each company product of the technology regarding the SD memory card. With the nonprofit corporation which is established in America, as for the headquarters California state [sanramon]. It is established by 2000 January by 3 corporations of Matsushita Electric Industrial Co., Ltd., Toshiba and the SanDisk corporation, presently nearly 1000 participate.

SD Association

Alias:
SDA, SD card association, SD Card Association
Field:
Mobile > memory card > SD Association

The economic organization which assures the guaranty and spread promotion etc of compatibility of standardization and each company product of the technology regarding the SD memory card. With the nonprofit corporation which is established in America, as for the headquarters California state [sanramon]. It is established by 2000 January by 3 corporations of Matsushita Electric Industrial Co., Ltd., Toshiba and the SanDisk corporation, presently nearly 1000 participate.

SD Card Association

Alias:
SDA, SD card association, SD Association
Field:
Mobile > memory card > SD Card Association

SDH Synchronous digital hierarchy

Reading: S D h
Full spelling: Synchronous Digital Hierarchy
Field:
Network technology > optical communication > SDH

International Standard of the high-speed digital communication method where it was proposed the Bellcore corporation (the present Telcordia Technologies corporation) by, the International Telecommunication Union telecommunications standardization sector (ITU-TS) with was standardized, uses the optical fiber. It is used for the backbone circuit and the like of Internet which ties between Internet service providers. The name, SDH is used mainly in Europe, in north America is known with the name of SONET. In order to avoid confusion, SONET/SDH inscribing has become generally. SDH has stipulated the specification of physical layer mainly, there is many a thing where ATM is used in protocol of data link layer. The system, MAPOS which raises transmission efficiency making use of HDLC it is developed in data link layer depending upon the NTT optical network laboratory.

SDHC memory card

Field:
Mobile > memory card > SDHC

Memory capacity above 4GB is actualized, superior standard of the SD memory card. SD Card Association (SCA) announced in 2006 January.

Also transfer rate improved, high speed above 6MB/s data transfer became possible. It standardizes the guaranteed performance of transfer rate “Class 2” as for the corresponding equipment above 2MB/s, as for “Class 4” above 4MB/s, as for “Class 6” guarantees the speed above 6MB/s as “class”.

The file system from former FAT16 becomes modification to FAT32 attendant upon large increasing capacity, in the former equipment cannot do the reading and writing of the SDHC media. Utilization of the former SD memory card is possible with the SDHC equipment. Furthermore, the product of capacity above 4GB exists even with the former SD memory card, but with respect to of standard because it is not corresponding to only 4GB, is the product outside standard.