Bedienungsanleitung Grundig 40GFW6060 (Seite 93 von 99) (Englisch)

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ENGLISH

GLOSSARY

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LNB

Low Noise Block is located in the center of

a parabolic antennae.

E.g. It implements the satellite frequencies

that are between 10.7–11.75 or 11.8–12.75

GHz in 950 to 2150 MHz and ensures cable

transmission with coaxial cables (and with

fiber-optic cables recently) and reception with

satellite receivers.

MP3

Compressed audio file format.

NAS (network attached storage)

The abbreviation NAS is used for devices that

provide data from a hard drive to a network.

Network mask

The network mask or net mask, sometimes also

referred to as a subnet mask, is a bit mask that

separates an IP address into a network part and

a device/host part. It is used in IP networks to

make routing decisions.

Network name (SSID)

The network name (SSID – service set identifier)

is the term used for the identification of a

wireless network that is based on IEEE 802.11.

Every wireless LAN has a configurable SSID,

which uniquely identifies the wireless network.

The character sequence of the network name

can be up to 64 characters in length. It is

configured in the base station (access point)

of a wireless LAN and set on all clients which

access it.

Noise Reduction

Reduces the noise coming from the signal. It

should therefore be used minimally provided

that a good picture material is present.

Perfect Clear

Improves the general image by means of a

gentle blue hue (giving the appearance of

greater sharpness) and improves the black level

by setting this entirely to black from a specific

level of greyness. This reduces the visible grey

values in the dark areas of the picture.

Special IP Address

Private IP addresses belong to the particular

IP address ranges that are not routed in the

Internet. They can be used by anybody for

private networks, such as LANs. Many computer

networks require complete connectivity at IP

level, but only limited access to the Internet.

If such a computer network has a private IP

address range, it forms an Intranet which

cannot be accessed from the Internet as the

Internet routers ignore private address ranges.

A gateway or router that is placed in this private

network and which has a public address in

the Internet as well as a private IP address

makes the connection to the Internet. This can

be performed by a proxy or using NAT/PAT/

masquerading. As the address range used can

only be viewed within the private network, the

same range can also be used in other private

networks. The unique nature of an IP address

required by the Internet protocol is ensured by

this restricted visibility.

Proxy server

A proxy or proxy server is a service program

for computer networks that administers data

transfer. It makes data transfer faster, and can

also increase security by implementing access

control mechanisms. The transfer is conducted

between computers or programs in computer

networks. On the server side, the proxy acts as

a client; on the client side, it acts as a server.

Router

A router is a network component that links

several computer networks. Router analyzes

(on the basis of layer 3 information) the

network packages of a protocol it receives and

forwards it to the intended destination network.

Conventional routers work on layer 3 of the

application layer. A router has an interface

for every network connected to it. When data

is received, the router determines the correct

path to the destination and thereby the suitable

interface via which the data can be transferred.

For this it uses a locally available routing table

that specifies via which router connection a

particular network can be reached.

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