URL

Uniform Resource Locator. A standard way of specifying the location of an object, such as an HTML document, on the Internet. Examples of URLs include the following:

http://www.dell.com

http://support.dell.com

ftp.dell.com

mailto:info@dell.com

The part before the first colon specifies the access scheme or protocol. Commonly implemented schemes include FTP and http. The part after the colon is interpreted according to the access scheme and can introduce an IP address, indicate a path or file on a server, or locate a particular position within a specified document.

USB

Universal Serial Bus. An interface for devices such as keyboards, joysticks, scanners, speakers, or printers, that provides a maximum transfer speed of

12Mb/second. Devices plug directly into a four-pin connector on your computer or into a multiport hub that connects to your computer. USB is hot- swappable, and up to 127 devices can be connected in daisy-chain manner.

UTP

Unshielded twisted pair. A common type of copper wiring used for telephone systems and Ethernet networks. To reduce electromagnetic induction between pairs of wires, sometimes called "crosstalk," two insulated copper wires are wound around each other to form a "twisted pair." See also STP.

V

Volt. A measurement of electric potential and electromotive force. If one volt is applied to a resistance of one ohm, a current of one ampere will flow across the resistance.

VAC

Volt(s) alternating current (AC).

VDC

Volt(s) direct current (DC).

VRM

Voltage regulator module. A component installed on the system board that senses the voltage requirements for a microprocessor and ensures that the correct voltage is maintained.

W

Watt. A measurement of electrical power that equals 1 ampere of current flowing at 1 volt.

WBEM

Web-Based Enterprise Management. A set of systems management and Internet standard technologies developed to unify the management of computing environments. The core set of WBEM standards, developed by DMTF, include a data model, the CIM standard, a coding specification, and an http transport mechanism.

WfM

Wired for management. A specification developed by Intel to improve the manageability of desktop, mobile, and server computers. WfM defines software, hardware, and other capabilities that enhance computer network operations and reduce support costs by allowing remote management application programs to access client computers over a network. WfM technology is used in a client computer, in such components as circuitry, power supply, network adapter, and so on. Remote management application programs can use WfM technology to access a client computer and gather information about it, monitor its status, or change its operational state. WfM standards include DMI, PXE, and Remote Wake Up. WfM is also compatible with current and emerging industry specifications, such as ACPI, CIM, SMBIOS, SNMP, and WBEM.

WOL

Wake-on LAN. Technology that allows a computer on a network to be remotely turned on or awakened from

Glossar y

269

Page 269
Image 269
Dell 530 manual Url, Usb, Utp, Vac, Vdc, Vrm, Wbem, Wol