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Network Hardware_PK
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Network Hardware_PK
Network Interface Card
- Every device on a network will require a Network Interface of some kind. This can be in the form of a dedicated card or an electronic chip integrated into the motherboard. The purpose of a network interface card (NIC) is to provide a connection to the network. The NIC converts data from the nodes (device on networks) into a format that is compatible with the network. This format is called the 'network protocol' - a set of standard rules that all connected devices must follow.
- Every NIC has a unique address hard-wired or 'burned' into it i.e. configured in the hardware. This is called a mac address (it's media access control
- The MAC address means every node on the network can be uniquely identified so that data is sent to the correct place. It is stored as a 12 digit hexadecimal number
- Every NIC has a unique address hard-wired or 'burned' into it i.e. configured in the hardware. This is called a mac address (it's media access control
- Every device on a network will require a Network Interface of some kind. This can be in the form of a dedicated card or an electronic chip integrated into the motherboard. The purpose of a network interface card (NIC) is to provide a connection to the network. The NIC converts data from the nodes (device on networks) into a format that is compatible with the network. This format is called the 'network protocol' - a set of standard rules that all connected devices must follow.
Hub
- A hub is a hardware device that allows nodes (computers) to be linked together and exchange data. Every node on a wired network is connected to the hub by a cable.
- Data is moved around the network in the form of data 'packets'. A data packet is a small chunk of data that has a destination address included.
- When a data packet arrives at a hub port, it is transmitted to every other port and from there to every node on the network. This is inefficient, since the data is generally intended to reach only one computer and yet a hub will send it to all of them at once.
- A network cable can only have one data packet in it at any instant.
- So if two or more computers want to place a data packet on to the network at exactly the same time, then a 'data collision' will take place. If this happens, the collided data is marked as unusable and the two computers are forced to send their data packets again, at slightly different times. This won't be noticeable with small networks but will become a problem with big networks
- A network cable can only have one data packet in it at any instant.
- When a data packet arrives at a hub port, it is transmitted to every other port and from there to every node on the network. This is inefficient, since the data is generally intended to reach only one computer and yet a hub will send it to all of them at once.
- Data is moved around the network in the form of data 'packets'. A data packet is a small chunk of data that has a destination address included.
- A hub is a hardware device that allows nodes (computers) to be linked together and exchange data. Every node on a wired network is connected to the hub by a cable.
Switch
- Add screenshot of hub vs switch table in here
Router
Cables
WAP
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- Descrição
- Year 10 Computing Mapa Mental sobre Network Hardware_PK, criado por leif monteith em 17-01-2018.
- Criado por
- leif monteith
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- Criado por Paul Kluge · 17 jan 2018
- Copiado por leif monteith · 17 jan 2018
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