DAO
1. DATA ACCESS OBJECT: access to Microsoft (MICROSOFT) JET database engine (DATABASE ENGINE) of the object (OBJECT), typically used in VB programming languages (PROGRAMMING LANGUAGE) to access the database (DATABASE) .2. DISK AT ONCE: When recording CD-R write-once all the information approach.
DAS directly to storage devices (Direct Attached Storage)
DAS is the first company to use the Online storage devices. A traditional storage environment, all storage devices are directly connected to the server host to provide system operation by servers and data storage space.
DAS consists mainly of the host adapter to connect two parts and storage devices. If the server built-in IDE or SCSI interface to connect a variety of hard drive capacity, or an external SCSI interface for connection of disk arrays, tape equipment, all belong to the scope of direct storage devices.
Since direct storage devices and servers directly connected to, can establish a more secure storage environment and possess the ability to expand the system storage space, but also the relative lack of storage efficiency. If the business plan to access the other hosts connected to the data to another host, then the data transmission must be through a local area network and the host will not only delay the whole local area network transmission speed, the same will increase the server's work volume. The advent of SAN and NAS recently, DAS has been gradually into the background, multi-use as a special storage needs.
DAT Digital Audio Tape
The use of helical scan (HELICAL SCAN) mode-recorded tape (TAPE), commonly used DAT format is called DDS.
Data Center
Data center, also known as IDC (Internet Data Center), is a center of information and data repository available to surrounding businesses or organizations networked storage, management and transmission of information scattered. Data center takes a lot of space for storage is information server, so most large vendors such as IBM or HP, or the construction of small and medium sized companies formed a joint venture.
Data Center can also refer to ASP or a network management company for the storage site and providing information to other clients of the specialized facilities. This Data Center may include a network operations center (network operations center), it is the kinds of automation systems, will be Constantly monitors the servo activities and Web site traffic and network performance, and anomalies of various sizes to provide a report To make the relevant personnel can take preventive measures before problems occur
Data Center A third meaning refers to the management of a company's data processing and network a group of persons living or facilities. |
