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Data VHS <D-VHS>
Alias:
Data VHS
Field:
Multimedia > home appliance /AV equipment > Data VHS
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Nippon Victor developed, image recording type of the video tape recorder for national welfare of digital system. Digital edition of the VHS format which with the system which is recorded to the tape the image signal as a digital data, presently in the world most has spread.
To correspond to record such as BS digital broadcast and ground wave digital broadcast, HS mode (high picture quality mode) with maximum of 4 hours, STD mode (standard mode) with record to maximum of 8 hours is possible. With HS mode with digital hi-vision broadcast and STD mode digital broadcast of standard picture quality can be recorded without deteriorating picture quality.
But in addition there is time of 2 time - 7 times that the respective STD mode can record, picture quality decreases because bit rate becomes low |
D/A converter <DAC>
Field:
Semiconductor > basis technology > D/A converter
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| The circuit which converts the digital signal to the analog signal. In the personal computer, converting the digital data of the analog signal, although it transmits to display, you use. |
DB <Database>
Alias:
database
Field:
Software > database > DB |
| It is data aggregate is shared by the plural application software or the user. In addition, when that management system is included, it is. The word, database provided to be used in 1950 age by the US military. But the gathering of the data in the form in the chart main current, recently, the object database which it handles data aggregate, has started being utilized with procedure and as gathering of the object which unifies the data the large-scale system etc. The software in order it operates the database and it maintains and to manage is called DBMS, in the large-scale system Oracle of the Oracle corporation, in the small-scale system Access of the has occupied the large portion of the respective market |
DB2
Reading: D B two
Field:
Software > database > DB2 |
Relational database management system of and series name of related software. RDBMS which is core is called the (DB2 UDB) with.
For various UNIX and for Windows, in addition, mainframe OS of the same company () business such as OS/400 is prepared, corresponds to the wide platform.
The related software which adds various performance to DB2 UDB is done, to be many release names generically the whole and are also times when it is called the
By the way, at the same company other than DB2, you inserted in the hand with purchase of the Informix corporation, it is “Informix” database management system and the related product group.
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