Virgin Mobile 2200 guide

●●DNS — Domain Name System. A system for converting host names and domain names into IP addresses on the Internet or on local networks that use the TCP/IP protocol.

●●EDGE — Enhanced Data for GSM Environment or Enhanced Data rates for Global Evolution. A faster version of GSM wireless service, it allows data to be delivered at rates of 384 Kbps and enables the delivery of multimedia and other broadband applications. EDGE became available in 2001.

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ESN — Electronic Serial Number. A unique 32-bit number embedded in a wireless device that identifies the device.

ExpressCard — PCMCIA’s hardware standard for high-performance expansion of notebook computers. Intended to replace the PC Card (formerly PCMCIA card) standard.

Firewall — A hardware or software boundary that protects a network or single computer from unwanted outside traffic.

Firmware — A computer program embedded in an electronic device. Firmware usually contains operating code for the device.

●●FTP — File Transfer Protocol. A network protocol for exchanging files over a TCP network.

●●Gateway — A network point that acts as an entrance to another network that uses a different protocol.

●●GPRS — General Packet Radio Services. A system used by GSM mobile phones for transmitting IP packets. It also provides support for WCDMA based 3G networks.

●●GSM — Global System for Mobile communication. A digital mobile telephony system widely used in Europe and other parts of the world. GSM was first launched in 1991 and is the most widely used of the three digital wireless telephony technologies (TDMA, GSM, and CDMA). GSM uses a variation of TDMA.

●●GPS — Global Positioning System. A radio-based navigation system that allows users to determine their location. The device uses satellite data to calculate its position. Commonly used in mapping and navigation systems.

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Host Name — The unique name by which a network-attached device is known on a network.

Hotspot — A Wi-Fi (802.11) access point or the area covered by an access point. Used for connecting to the Internet.

Hot-Swappable— The ability to safely remove and replace a component (for example, a memory card or USB device) from a device or computer while it is powered on.

●●HSDPA — High Speed Downlink Packet Access. HSDPA is an enhanced version of WCDMA that supports broadband connections with download speeds up to 7.2 Mbps. This enhanced 3G technology enables the download of high-bandwidth multimedia files, high resolution graphics, and other complex files, and allows viewing email attachments at broadband-like speeds.

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HSPA — High Speed Packet Access. A family of 3G services that is available to GSM carriers. It is a major enhancement from WCDMA.

HSPA+ — HSPA Evolution or HSPA Evolved. A 3G mobile telephony protocol with up-link speeds up to 11 Mbps and downlink speeds up to 42 Mbps.

●●HSUPA — High Speed Uplink Packet Access. A 3G mobile telephony protocol with up-link speeds up to 5.76 Mbps and downlink speeds up to 7.2 Mbps.