Mobile Computing Definitions

This glossary explains the meaning of key words and phrases that information technology (IT) and business professionals use when discussing mobile computing and related software products. You can find additional definitions by visiting WhatIs.com or using the search box below.

  • G

    Google Play (Android Market)

    Google Play, formerly known as Android Market, is the official distribution storefront for Android applications and other digital media, such a music, movies and books, from Google.

  • Google Voice

    Google Voice allows registered members to link their mobile phones, IP telephony applications and land line phones to a single Google Voice phone number. 

  • GPRS (General Packet Radio Services)

    General Packet Radio Services (GPRS) is a packet-based wireless communication service that promises data rates from 56 up to 114 Kbps and continuous connection to the Internet for mobile phone and computer users.

  • GPS messaging (Global Positioning System messaging or mid-air messaging)

    GPS (Global Positioning System) messaging is a wireless messaging system for location-specific rather than recipient-specific messages.

  • ground-plane antenna

    A ground-plane antenna is a variant of the dipole antenna, designed for use with an unbalanced feed line such as coaxial cable.

  • GSM (Global System for Mobile communication)

    GSM (Global System for Mobile communication) is a digital mobile network that is widely used by mobile phone users in Europe and other parts of the world.

  • H

    handheld

    A handheld computer is a computer that can conveniently be stored in a pocket (of sufficient size) and used while you're holding it.

  • handie talkie (HT, walkie talkie, handheld)

    A handie talkie, often referred to by its abbreviation, HT, is a handheld, portable two-way radio transceiver.

  • handoff

    In a cellular telephone network, handoff is the transition for any given user of signal transmission from one base station to a geographically adjacent base station as the user moves around.

  • Handspring

    Handspring was a company that manufactured portable computer/organizer hardware.

  • handtop (ultra personal computer)

    A handtop is a full-featured portable computer that is slightly larger than a PDA, but much smaller than a laptop.

  • HDML (Handheld Device Markup Language)

    HDML (Handheld Device Markup Language) - often compared to Wireless Markup Language (WML) - is a language that allows the text portions of Web pages to be presented on cellular telephones and personal digital assistants (PDA) via wireless access.

  • helical antenna

    A helical antenna is a specialized antenna that emits and responds to electromagnetic fields with rotating (circular)polarization.

  • hertz

    Hertz is a unit of frequency (of change in state or cycle in a sound wave, alternating current, or other cyclical waveform) of one cycle per second.

  • Hierarchical Mobile IPv6 (HMIPv6)

    Hierarchical Mobile IPv6 (HMIPv6) is the proposed enhancement of Mobile Internet Protocol versions 6 (MIPv6) that is designed to reduce the amount of signaling required and to improve handoffspeed for mobile connections.

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