| A | B |
|---|
| Communications Network | A Network which is created to support communications and activity within a community or group |
| community | a group of people with some common interest or objectives |
| network user | a person who is known to the network operating system |
| network resource | any resource we share using the communications network |
| workgroup printing | the ability to share printers among network users to enable a business, group or community to reduce the total number of devices needed |
| print job | Created when a document is to be printed. It is 'spooled' to the printer and added to the printer queue. It is then printed by the printer in queue order. |
| network administrator | person who configures and manages network settings |
| network permissions | enables users to access shared documents and databases at different levels of authorisation |
| protocol | an agreed method of communication between two communicating devices |
| dynamic IP address | addresses which are assigned to computers each time they log on to a network. They ma be different each time the computer connects |
| static IP address | addresses which are assigned permanently to computers, e.g. servers |
| packet | some of the data we are sending, surrounded by all the 'postal' data we need to make sure the packet gets to its destination, i.e. the destination IP address. |
| error detection | allows a system to re-send any corrupted data |
| baud | the number of signals or data symbols that can be transmitted each second |
| bps | the rate of actual data transfer. |
| bits per second | the rate of actual data transfer. |
| bandwidth | the maximum rate of transfer over a link to the Internet, usually measured in Kbps, Mbps or Gbps |
| local area network | a network which connects computers and networking components in a small area, such as a single building or group of buildings |
| LAN | a network which connects computers and networking components in a small area, such as a single building or group of buildings |
| wide area network | networks which connect single computers or LANs over a wide geographical area, such as between cities or even countries |
| WAN | networks which connect single computers or LANs over a wide geographical area, such as between cities or even countries |
| router | a device which forwards packets along a network and can be configured to protect the network from security threats |
| client | an application that runs on a computer and works with a server to perform some operations |
| server | a computer which runs a network operating system and is designed to communicate with client software to perform a range of tasks for the network users. |
| workgroup | an informal collection of computers on a network where a server takes a limited role, if any. |
| domain | a group of computers which share a common directory. |
| hub | a network connection device used to interconnect two or more computers |
| port | a physical socket into which a cable can be connected. |
| topology | the way in which a network is shaped or laid out, which affects the way it is connected |
| network operating system | a combination of parts or subsystems which enable a network to function properly |
| permission | level of access granted on objects, such as 'full control', 'read-only', 'write', etc. It determined what you can do with that resource. |
| encrypt | using a secret code to transform data so that it cannot be read |
