Psion Teklogix 9160 G2 Manual de usuario descargar pdf (Pagina 410)

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D-60 Psion Teklogix 9160 G2 Wireless Gateway User Manual

Appendix D: Glossary

ISP

An Internet Service Provider (ISP) is a company that provides access to the Internet to

individuals and companies. It may provide related services such as virtual hosting, network

consulting, Web design, etc.

Jitter

Jitter is the difference between the latency (or delay) in packet transmission from one node

to another across a network. If packets are not transmitted at a consistent rate (including

Latency), QoS for some types of data can be affected. For example, inconsistent

transmission rates can cause distortion in VoIP and streaming media. QoS is designed to

reduce jitter along with other factors that can impact network performance.

Latency

Latency, also known as delay, is the amount of time it takes to transmit a Packet from sender

to receiver. Latency can occur when data is transmitted from the access point to a client and

vice versa. It can also occur when data is transmitted from access point to the Internet and

vice versa. Latency is caused by fixed network factors such as the time it takes to encode and

decode a packet, and also by variable network factors such as a busy or overloaded network.

QoS features are designed to minimize latency for high priority network traffic.

LAN

A Local Area Network (LAN) is a communications network covering a limited area, for

example, the computers in your home that you want to network together or a couple of

floors in a building. A LAN connects multiple computers and other network devices such as

storage and printers. Ethernet is the most common technology implementing a LAN.

Wireless Ethernet (802.11) is another very popular LAN technology (also see WLAN).

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