|
| Main
| A
| B
| C
| D
| E
| F
| G
| H
| I
| J
| K
| L
| M
| N
| O
| P
| Q
| R
| S
| T
| U
| V
| W
| X
| Y
| Z |
Daemon
A program that runs in the background whenever needed, carrying out tasks for the user. They 'sleep' until something comes along which needs their help; most commonly found on Linux & Unix systems.
See Also:Linux, UNIX
Dark Fibre
Optic fibre cable without the necessary equipment to transmit a telecommunication signal over the fibre.
A telecommunication network operator can sell the right to use their dark fibre to other carriers or directly
to end users, who have the obligation of supplying the necessary electronics to transmit on the fibre.
See Also:Optical Fibre,
Fibre Optics
DHCP (Dynamic Host Configuration Protocol)
Please see the TechDesk Article NAT and DHCP
Dialup
'Dialup Access' or a 'Dialup Account' is when a modem is used to gain access to the Internet via a network.
Digital Certificates
Please see the TechDesk Article Digital Certificates and Digital Private/Public Key Pairs
Digital Signatures
Please see the TechDesk Article Digital Signatures
Domain Name
Unique address identifying each site on the Internet, usually of two or more segments separated by full stops.
See Also:Lawyers Online Site - Domain Names FAQ
Domain Name Server
Computers connected to the Internet whose job it is to keep track of the IP Addresses and Domain Names of other machines. When called upon, they take the Domain Name and convert it to the relevant numeric IP Address.
Domain Name System
Allows users to relate to computers on the Internet by using textual addresses (eg. www.theplanet.net) for ease of use, rather than the IP Address system.
DOS
1. (Disk Operating System) simple operating system developed by Microsoft, allows extensions by other programs.
2. (Denial Of Service) occurs when a website or other server recieves an invalid request or flood of requests that prevents further requests from working.
Download
When you transfer information off a remote machine connected to the Internet onto your local machine, you are downloading data.
See Also:Upload
DSL
DSL stands for Digital Subscriber Line, a local loop access technology that provides high-speed connections over copper wire to
deliver data, voice and video information over a dedicated digital network. The two common variations of DSL services are known as
ADSL and SDSL. DSL is a more popular alternative to ISDN and low end Leased Lines, being faster than ISDN and less costly than
traditional Leased Lines.
See Also:Broadband, ADSL,
SDSL
DSLAM
Stands for Digital Subscriber Line Access Mutiplexor, the equipment that contains a high concentration of central office splitters,
DSL modems and other electronics to connect data traffic from the local loop to a WAN. This equipment is commonly contained within the
local telephone exchange.
See Also:Broadband, ADSL,
SDSL, Central Office
| Main
| A
| B
| C
| D
| E
| F
| G
| H
| I
| J
| K
| L
| M
| N
| O
| P
| Q
| R
| S
| T
| U
| V
| W
| X
| Y
| Z |
|
