Axis 247S Uživatelský manuál stáhnout pdf (Strana 42)

AXIS 247S - Glossary

Switch - Whilst a simple hub transmits all data to all devices connected

to it, a switch only transmits the data to the device it is specifically

intended for.

TCP/IP - Transmission Control Protocol/Internet Protocol. A suite of

network protocols that determine how data is transmitted. TCP/IP is

used on many networks, including the Internet. TCP keeps track of the

individual packets of information and IP contains the rules for how the

packets are actually sent and received.

UDP - The User Datagram Protocol is a communications protocol that

offers a limited amount of service when messages are exchanged

between computers in a network that uses the Internet Protocol (IP).

UDP is an alternative to the Transmission Control Protocol (TCP) and,

together with IP, is also known as UDP/IP.

Unicast - Communication between a single sender and a single receiver

over a network. A new connection is established for each new user.

URL - Uniform Resource Locator. An “address" on the network.

Varifocal - A varifocal lens provides a wide range of focal lengths, as

opposed to a lens with a fixed focal length, which only provides one.

WAN - Wide-Area-Network. Similar to a LAN, but on a larger

geographical scale.

Web server - A program on a computer that delivers the resources

(usually web pages) requested by the web user (the client).

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Axis 247S Uživatelský manuál Strana 42