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U
Reading: U
Field:
Enterprise information system > computer system > large-scale system > U
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1 divisions of 19 inch rack it is thickness of the equipment which can be installed, the unit which means 44.5mm.
It depends on also the size of the rack, but as for the equipment of 1U size to the maximum of 45 units because it is possible, to receive to one rack, in the basic office work which uses the network equipment in large quantities it can use the equipment of 1U size well.
As for the equipment of thickness 89mm as for name it changes with the number of divisions which are possessed e.g., it is called 2U size. In addition, also thing of 1 divisions itself of 19 inch rack calls 1U. |
UAAG
Reading: U a a Gee
Full spelling: User-Agent Accessibility Guideline
Field:
WWW > Production > design > UAAG |
The guideline in order to develop the application software of the Web browser and the like which it is easy to utilize even with the handicapped person and the senior citizen et. al. It was advised 2002 December, by W3C which does the standardization of Web-related technology.
As for UAAG, user such as Web browser and media player has stipulated a some indication and the accessibility function etc which the software which does operation should have, it diverges, contents such as thing and the correspondence to the calling off software which can operate with only the keyboard. That the client who corresponds to the obstacle of all types is drawn up it has become the contents which are urged to the developer.
W3C in addition release has done in for the Web contents implementor as advice in for the authoring tool developer, the Web accessibility of the handicapped person you have aimed toward the fact that it improves with three guidelines which adjust UAAG.
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UATA <Ultra ATA>
Alias:
Ultra DMA, ATA-33, Ultra ATA/33, UDMA and DMA-33
Field:
Personal computer > I/O > IDE/ATA > UATA
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Extended specification of IDE (ATA) standard which the Quantum corporation and the Intel corporation announced in 1996, connect the personal computer and the storage unit of the hard disk and the like. In the succession specification of EIDE which is standardized as ATA-2, it was standardized in with ANSI. The highest data rate is 33MB/s. The Quantum corporation calls Ultra ATA, but there are also times which the Intel corporation calls is called ATA-33 or DMA-33 etc to in addition to.
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UATA/100 <Ultra ATA/100>
Alias:
Ultra DMA/100, ATA-100, UDMA/100 and DMA-100
Field:
Personal computer > I/O > IDE/ATA > UATA/100
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IDE which the Quantum corporation and the Intel corporation announced in 2000, connect the personal computer and the storage unit of the hard disk and the like (ATA) extended specification of standard. Also is called. Transfer rate being maximum, 100MB/s and Ultra ATA (/33) has reached 3 times. The connector uses those of 80 pins which are used even with Ultra ATA/66. Downward compatibility is guaranteed, can connect also the hard disk of Ultra ATA specification and EIDE specification. The schedule where by the way the formal calling with “Ultra DMA Mode 5”, formally is standardized with ATA-6 which presently is in the midst of deliberating with ANSI as portion of ATA standard.
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UATA/66 <Ultra ATA/66>
Alias:
Ultra DMA/66, ATA-66, Fast ATA-2, UDMA/66 and DMA-66
Field:
Personal computer > I/O > IDE/ATA > UATA/66 |
IDE which the Quantum corporation and the Intel corporation announced in 1998, connect the personal computer and the storage unit of the hard disk and the like extended specification of standard. Alsoand so on is called. Transfer rate being maximum, has reached the two times the 66.6MB/s and Ultra ATA. The connector has used the same 40 pin connectors until recently, but the signal conductor has become with 80 of times. Downward compatibility is guaranteed, can connect also the hard disk of Ultra ATA specification and EIDE specification. By the way the formal calling with is standardized formally as a portion of the ATA-5 standard of ANSI.
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