Glossary(Q-Z)

Glossary >Q-Z

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R(top)

Remote Network Access

Remote Network Access ; Terminology being used for the hardware/software for connecting remote workers, offices, customers and suppliers through non-dedicated (dial-up/ISDN) connections. - Remote Network Access ; Terminology being used for the hardware/software for connecting remote workers, offices, customers and suppliers through non-dedicated (dial-up/ISDN) connections.

Roaming

The ability to access a network anywhere and move freely while maintaining an active link through a wireless connection to a network. Roaming usually requires a handoff when a node (user) moves from one cell to another. The ability to access a network anywhere and move freely while maintaining an active link through a wireless connection to a network. Roaming usually requires a handoff when a node (user) moves from one cell to another.

Router

A device that interconnects networks that are either local area or wide area. A device that interconnects networks that are either local area or wide area.

S(top)

Symmetric Multiple Processing

Processor hardware architecture that allows multiple processors to share processing workload, using common memory. Symmetric Multiple Processing - processor hardware architecture that allows multiple processors to share processing workload, using common memory.

SMS ( Short Message Service)

Short Message Service is a two-way text-based message service on primarily GSM network in Europe. EMS (Enhanced Message Service) allows graphics, images, ring tones, etc. EMS provides an important evolutionary step between SMS and full Multimedia Messaging Service (MMS) of future.

SNMP( Simple Network Management Protocol )

An application layer protocol that facilitates the exchange of management information between network devices. It is part of the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite. SNMP enables network administrators to manage network performance, find and solve network problems, and plan for network growth.

T(top)

TDMA (Time Division Multiple Access)

A technology for shared medium (usually radio) networks. It allows several users to share the same frequency by dividing it into different time slots. The users transmit in rapid succession, one after the other, each using their own timeslot. This allows multiple users to share the same transmission medium (e.g. radio frequency) whilst using only the part of its bandwidth they require. Used in the GSM, PDC and iDEN digital cellular standards, among others. TDMA is also used extensively in satellite systems, local area networks, physical security systems, and combat-net radio systems.

U(top)

UDP (User Datagram Protocol)

A protocol that defined to make available a datagram mode of packet-switched computer communication. This protocol provides a procedure for application programs to send messages to other programs.

Unicode

Character encoding scheme allowing characters from major world languages including standard compression schemes and a wide range of typesetting information.

Uplink

It is the connection from a mobile device to the base station of a GSM network.

V(top)

VoIP(Voice Over Internet Protocol)

A protocol that takes voice signals and encodes them using IP. In addition, the VOIP reduces the total bandwidth.

VSAT (Very Small Aperture Terminal )

A satellite ground station with an antenna dish that is smaller than 3 meters, as compared to around 10 meters for other types of satellite dishes. VSAT is most commonly used for point of sale transactions including credit cards and RFID applications such as Mobil Speedpass.

W(top)

WAN (Wide Area Network)

A computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more local-area networks (LANs).Computers connected to a wide-area network are often connected through public networks, such as the telephone system. They can also be connected through leased lines or satellites. The largest WAN in existence is the Internet.

WAP(Wireless Application Protocol)

A protocol that defines how applications on wireless devices. It consists of several sub-parts including WML (like HTML for cell phones), WMLScript (like JavaScript), and WTAI, the Wireless Telephony Application Interface.

WML (Wireless Markup Lanuage )

A simplified version of HTML is built for portable Internet-enabled devices. It is mainly built to simplify navigation for users with small screens and limited input devices.

X(top)

XHTML (eXtensible HyperText Markup Language)

Reworking of HTML 4.0 as an application of XML. It allows to create sets of markup tags for providing a foundation for device-independent Web access.

XML (eXtensible Markup Language )

It defines a standard format to add markup to documents for openning standard documents containing structured information.

Y(top)

Yield

Rate of output of any of factors of production applies in loss packet during the data transmission.

Z(top)

Zero Defects

A goal of "Total Quality Management" for no errors in a product or process.