Virgin Mobile MIFI 2200 - Manual (Page 74)

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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.
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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.
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ExpressCard — PCMCIA’s hardware standard for high-performance expansion of notebook computers.
Intended to replace the PC Card (formerly PCMCIA card) standard.
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Firewall — A hardware or software boundary that protects a network or single computer from
unwanted outside traffic.
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Firmware — A computer program embedded in an electronic device. Firmware usually contains
operating code for the device.
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FTP — File Transfer Protocol. A network protocol for exchanging files over a TCP network.
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Gateway — A network point that acts as an entrance to another network that uses a different
protocol.
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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.
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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.
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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.
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Hotspot — A Wi-Fi (802.11) access point or the area covered by an access point. Used for connecting
to the Internet.
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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.
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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.
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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.
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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.