1.3 Computing Networks, Connections and Protocols

• A group of two connected computers or more

• A diagram to display connections

• The client requests actions from the server. • The server responds to the requests of the client.

• Circles on a graph representing connections • Lines on a graph representing connections

• Efficient • Data openable across devices • Data uploadable across devices

• Expensive • Specialist management • Cyber attacks

• Devices can act as both the client and server

• Cheap • Efficient • Non dependant on a server

• No backup system • No security • Overloading of requests

• Clients make requests to a server

• Multiple requests • Central storing • Easy backups • Easy maintance • A client computer breaking wouldn’t effect the network

• Expensive • Specialist management • If the server fails, everyone is disrupted

• Personal area network • Single user with multiple connected devices

• Local area network • Multi-user network with multiple connected devices • Owned by a small organisation

• Wide area network • Multiple LANS connected together

• Wireless access point • Provides wireless access to the internet • Sometimes built into router

• Moves data from one network to another • Commonly used to connect to internet

• Wired connection of devices

• Wired connection of devices • Data is broadcasted

• Network interface card • Enables connections between devices

• Connects a LAN to another LAN • Reduces internet traffic

• Media access control • Used to identify devices in a network

• A type of arrangement in a network design

• Central node with all other nodes connected to it