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ViewSonic
3-in-1 Access Point
42
PCI (Peripheral Component Interconnect).
A high-performance I/O
computer bus used internally on most computers. Other bus types include
ISA and AGP. PCIs and other computer buses enable the addition of
internal cards that provide services and features not supported by the
motherboard or other connectors.
PCMCIA (Personal Computer Memory Card International Association).
Expansion cards now referred to as "PC Cards" were originally called
"PCMCIA Cards" because they met the standards created by the PCMCIA.
Peer-to-peer network.
A wireless or wired computer network that has no
server or central hub or router. All the networked PCs are equally able to act
as a network server or client, and each client computer can talk to all the
other wireless computers without having to go through an access point or
hub. However, since there is no central base station to monitor traffic or
provide Internet access, the various signals can collide with each other,
reducing overall performance.
PHY (Physical Layer).
The lowest layer within the OSI Network Model. It
deals primarily with transmission of the raw bit stream over the Physical
transport medium. In the case of wireless LANs, the transport medium is
free space. The PHY defines parameters such as data rates, modulation
method, signaling parameters, transmitter/receiver synchronization, etc.
Within an actual radio implementation, the PHY corresponds to the radio
front end and base band signal processing sections.
Proxy server.
Used in larger companies and organizations to improve
network operations and security, a proxy server is able to prevent direct
communication between two or more networks. The proxy server forwards
allowable data requests to remote servers and/or responds to data requests
directly from stored remote server data.
Range.
How far will your wireless network stretch? Most Wi-Fi systems will
provide a range of a hundred feet or more. Depending on the environment
and the type of antenna used, Wi-Fi signals can have a range of up to mile.
Residential gateway.
A wireless device that connects multiple PCs,
peripherals and the Internet on a home network. Most Wi-Fi residential
gateways provide DHCP and NAT as well.
RJ-45.
Standard connectors used in Ethernet networks. Even though they
look very similar to standard RJ-11 telephone connectors, RJ-45 connectors
can have up to eight wires, whereas telephone connectors have only four.
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