Index
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location. The location accuracy is anywhere from 100 to 10 meters for most equipment.
Accuracy can be pinpointed to within one (1) meter with special military-approved
equipment. The GPS is owned and operated by the U.S. Department of Defense but is
available for general use around the world.
Hand-Held Devices
Small computing appliances, such as palmtops, personal digital assistants and pen-based
computers.
Hertz (Hz)
A frequency unit equal to one cycle per second.
Home Agent
The carrier responsible for routing data from your home network to your computer.
Nextel is your Home Agent.
Internet
A series of interconnected local, regional, national and international networks, linked
using TCP/IP. The Internet links many government, university, research and commercial
sites. It provides e-mail, Web browsing and file transfer services.
Internet Service Provider (ISP)
Provides your computer with Internet access. Also known as Service Provider.
Intranet
A network based on TCP/IP protocols (an internet) belonging to an organization, usually
a corporation, accessible only by the organization’s members, employees or others with
authorization. An Intranet’s Web sites look and act just like any other Web sites, but the
firewall surrounding an intranet fends off unauthorized access.
Kbps
Kilobits per second. Generally represented at 1000 bits per second.
Laptops
Portable computers, such as notebooks and subnotebooks.
Local Area Network (LAN)
A computer network that spans over a relatively small. Most LANs are confined to a
single building or group of buildings.
Mobile IP
An IP enhancement that provides forwarding of traffic to moving users. It uses agents in
the user’s home network and in all foreign networks. When logging on to a remote
