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Network Hardware - Coggle Diagram
Network Hardware
Modem
A modem converts digital data from a computer to an analogue format, usable for telephone lines or radio.
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Hub
A hub is a device that connects multiple computers together in a network, allowing them to share data packets.
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IP/MAC
Each computer running on an TCP/IP network has a unique IP address, allowing computers to communicate with each other by sending data packets containing destination IP addresses.
A MAC (Media Access Control) address is the unique 48-bit binary code assigned to a network card or Wi-Fi adapter, which identifies the card and its manufacturer.
Switch
A network switch prevents data collisions from taking place, by storing the destination addresses of every device that is connected to it.
As a data packet comes into the switch, its destination address is examined and a direct connection is made between the two machines.
Bridge
A bridge joins two networks together, making it seem like one large network.
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Router
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It operates by reading a data packet's destination address, searching every path possible to get to that address, and sending the packet along the least congested path.
Firewall
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A firewall monitors incoming and outgoing network traffic, establishing barriers between trusted and untrusted networks.
Data Packets
When data is sent over a computer, it is not sent all at once. Instead, the data is split into many small packets.
A packet usually contains the source and destination addresses, in addition to the data itself.