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Fast Ethernet - International standard networking
technology for wired implementations with a speed of 100 Mbps.
Firewall - A system that secures a network and
prevents network access by unauthorized users.
FireWire - The IEEE 1394 standard for input/output
technology for connecting high speed multimedia peripherals to a PC.
Forward Error Correction (FOE) - A class of technologies
for improving communications bandwidth by correcting data bit parity errors
on the receiving side of a communications transaction rather than requiring
retransmission of data from the sending side of the transaction. Acronym
"FEC" also used to be common.
Frame Relay - An efficient WAN technology that
transmits data in packets or envelopes in bursts at standard speeds of
56Kbps.
Frequency- A measure
of radio waves in cycles per second.
Gateway -Hardware and software for connecting networks
using different technologies, such as Ethernet and powerline networks.
Gigabit - One billion bits.
1 Gigabit Ethernet - There are two standards within
the 1 Gigabit Ethernet specification: 802.3z standard 1000Base-X, which
uses fiber optic media; and 802.3ab 1000Base-T, which uses twisted pair
(copper) media. The maximum nominal data transfer rate is 1,000 megabits
per second.
Gigahertz (GHz) - A measure of frequency in one
billion cycles per second.
Hertz (Hz)- A measure of frequency in one cycle
per second.
High-bit Rate Digital Subscriber Line (HDSL) -
A version of digital subscriber line technology with a range of 12,000
feet that transmits over two twisted pair cables at a rate of 1.544 Mbps.
Home network -A home-based Local Area Network (LAN).
Home Phoneline Networking Alliance (HomePNA) -A
networking industry group of companies working towards standardization
of specifications for phoneline networking products and an expansion in
market demand for such products.
Home Radio Frequency Working Group (HRFWG)- A networking
industry group of companies working toward standardization of specifications
for radio frequency networking products and an expansion in market demand
for such products.
HomePlug Powerline Alliance (HomePlug)- A networking
industry group of companies working toward standardization of specifications
for powerline networking products and an expansion in market demand for
such products.
Hops Count- A measure between two points on a network
based on the number of adapter cards a transmission crosses.
Hub - A multi-port device used to connect PCs to
a network. Each networked PC using Ethernet or Fast Ethernet is cabled
to a hub, which can have 4,5,8,12,16, or 24 ports and can transmit data
at either 10 Mbps or 100 Mbps or 10/100 dual speed. A hub transmits packets
it receives to all ports. Hubs can be cabled together for network expansion.
A hub's primary advantage is that its LEDs signal problems with any networked
PC, while a network's operation is not impacted by problems on any one
PC.
Industry Standard Architecture (ISA) card- An adapter
that fits into an ISA slot of a PC motherboard.
Industry Standard Architecture (ISA) slot - An
expansion bus for adapter cards used in PCs since the IBM AT model. ISA
slots do not automatically assign IRQs to enable plug and play functionality.
Infrared Data Association (IrDA) - An international
non-profit organization that develops and promotes technical standards
for electronic data exchange between computing devices via wireless infrared
light.
Institute of Electrical and Electronic Engineers (IEEE)
- An international organization that sets electronic and electrical standards.
Integrated Services Digital Network (ISDN) - An
ITU B64standard for bidirectional transmission of voice, data, and video
signals over public or private telephone digital networks.
International Telecommunications Union (ITU) -
A global organization whose mission is to adopt telecommunications treaties,
regulations, and standards
Internet appliance - A computer that is intended
primarily for Internet access via dial-up, cable, or network access. The
devices are simple to set up and do not support installation of third-party
software. They generally offer customized browsing, touch screen navigation,
PIM applications and possibly PDA synchronization.
Internet Protocol (IP) address - A string of numbers
assigned to each PC on a network. The IP address is used by the Internet
Protocol to locate each device on the network.
Internet Service Provider (ISP) - A company that
provides Internet access to individuals and businesses, either fee-based
or for free.
Internet Sharing Software (ISS) - An application
that allows all PCs on a network access the Internet simultaneously through
a single modem and Internet Service Provider (ISP) account.
IP Telephony -Technology that supports voice, data,
and video transmission via IP-based LANs, WANs, and the Internet. Voice
Over IP is one technology protocol in the broader concept of IP Telephony.
The promise and advantage of IP Telephony is that applications will be
less media and location dependent as with Public Switched Telephone Network
(PSTN) telephony.
Jitter - Signal distortion on an analog communication
line.
Kilobits per second (kbps)- A measure of data transmission
speed over communication lines in one thousand bits per second.
Kilobytes per second (Kbps) - A measure of data
transmission speed over communication lines in one thousand bytes per
second.
Latency -A measure of packet transmission time
from the time a data transmission request is made by a device to the time
the data is actually transmitted.
Local Area Network (LAN) -A system of connecting
PCs and other devices within the same physical proximity for sharing resources,
such as an Internet connections, printer, files, and drives
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