Network - A group of connected things or people., Graph - A diagram that is used to show the connections between things or people in a network. , Edges - The lines on a graph that are used to show the connections between the nodes., Node - The circles on a graph that represent the item that forms the connection., Computer network - Two or more computers connected together, sharing resources. , Client - Requests data, information, and actions from the server., Server - Responds to requests from the client. , Peer-to-peer - A type of connection where each device has equal responsibility. They can act as both client and server. , Client-server - There are two main roles: the client and the server. Clients make requests and servers fulfil the requests., PAN - A network of computers that connects devices within the locality of a person., LAN - A network of computers that covers a small locality., WAN - A network of computers that covers a large geographical area., Wireless access point (WAP) - Connects to a wired network and provides a wireless network radio signal for wireless devices to connect to., Router - Responsible for moving data from one network to another., Switch - Required if there are multiple wired connections on the network. Responsible for connecting data to the correct wired device., Hub - Can be used to connect multiple wired devices together. Will take any incoming data and broadcast (copy and send) it to all other devices connected., Network interface card (NIC) - Enables a wired network connection between a computer and another networked device., Bridge - Used to connect a LAN to another LAN., Media access control (MAC) address - This unique, physical address is used to locate devices on the network., Bluetooth - A form of wireless transmission media. It uses radio frequencies to transmit data., Fibre optic - A type of wired transmission media that uses light pulses as signals to transmit data., Copper cable - A type of wired transmission media that uses electrical signals to transmit data., WiFi - A collection of standards that allow the transmission of data through radio signals., Bandwidth - The amount of data that can be transferred within a defined time period., Latency - The time delay from sending data to when it is received. , Range - The maximum distance that data can travel along the transmission media., The internet - A global network of networks. , Centralised network - All data and resources are connected through a single location., Distributed network - All data and resources are shared through multiple locations and paths throughout the network., Protocols - Sets of rules used for communication.,

ICD2O Unit 4 Networks

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