| Bit |
A binary digit used in binary numbering systems. Can be 0 or 1. |
| Byte |
Term used to refer to a consecutive number of Binary digits that are operated on as a unit. Example: 8 bits = 1 byte. |
| Crossover |
Network cable is wired with the "receive" and "transmit" wires swapped to enable direct connection without a hub. Routers often have their network port wired as a crossover already, so they must plug into the crossover or uplink port of the hub |
| DHCP |
Dynamic Host Control Protocol, stest up network addresses of client computers automatically so you can simply plug and play |
| DNS |
Domain Name Server |
| DOS |
Disk Operating System (actually not true DOS for Windows NT, 2000 and XP, but a command line interface using mostly the same commands) |
| DSL |
The synchronous version of ADSL. Maximum download speed is slower but uploads are done at the same speed; useful where servers are uploading to internet or between buildings |
| IP |
Internet Protocol (the basic core of internet) |
| Gb |
Gigabit |
| GB |
Gigabyte |
| Gbps |
Gigabits per second |
| GBps |
Gigabytes per second |
| Kb |
Kilobit |
| KB |
Kilobyte |
| Kbps |
Kilobits per second |
| KBps |
Kilobytes per second |
| LAN |
Local Area Network. It's what you have if you connect two or more local computers directly together. Most common method for doing this today is by Ethernet, over a UTP network cable with RJ45 plugs, often using a hub or Ethernet switch |
| NAPT |
Incoming traffic can be setup for specific port numbers to redirect to a "virtual server" listening for internet traffic inside the LAN |
| Mb |
Megabit |
| MB |
Megabyte |
| Mbps |
Megabits per second |
| MBps |
Megabytes per second |
| NAT |
Network Address Translation. The router has an external IP number for internet, and redirects incoming traffic to the computer that originally requested it |
| PPP |
Point to Point Protocol |
| PPPoA |
PPP over ATM (Telecom's WAN uses ATM instead of Ethernet) |
| RJ11 |
same classification standard for a 4 wire modular plug, connecting directly to the phone/modem end of a phone cable or filter. You can recognise it as the small clear plug |
| RJ45 |
American classification standard that specifies a 8-wire modular network plug |
| TCP |
Transport Control Protocol |
| UTP |
Unshielded Twisted Pair, the most common form of network cable. Each colour-coded pair of wires (+ and -) is twisted to reduce electromagnetic interference. The minimum standard for 100base networks is CAT.5
|
| WAN |
Wide Area Network, similar to a Local Area Network (LAN), but it's a lot bigger. Unlike LANs, WANs are not limited to a single location. Many wide area networks span long distances via telephone lines, fiber-optic cables, or satellite links. They can also be composed of smaller LANs that are interconnected. The Internet could be described as the biggest WAN in the world. |
© 2010 WorldNet Services Limited. All rights reserved.