Wired and Wireless networks

Wired and Wireless networks

1. Peer-to-peer

   • files are shared across hosts
   • easy to set up
   • no special software is required
   • suitable for small offices

2. Client server network

   • has a central server
   • suitable for many organisations
   • all data can be backed up centrally
   • users can log in to any computer on the system
   • safer cos its all stored in one place

3. LAN

   • covers a small geographical area
   • used for small companies and schools

4. WAN

   • covers a large geographical area
   • the internet
   • used for large companies like Google

5. Networks

   • Star
     • multiple terminals plugged into one server
   • bus
     • many all in a line

6. Protocols and Layers

   • HTTP (hypertext transfer protocol)
     • accessing and receiving web pages
   • HTTPS (secure protocol)
     • encrypts information so that it cannot be understood if it is hacked

7. wired and wireless networks

   • A wired network connects devices to the Internet or other network using cables. The most common wired networks use cables connected to Ethernet ports on the network router on one end and to a computer or other device on the cable's opposite end

8. the internet

   • a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols
   • transfers packets of data across routes provided by routers
   • is the global system of interconnected computer networks

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