,Computer Networks
A system of interconnected computers and computerized peripherals
such as printers is called computer network.
This interconnection among computers facilitates information sharing
among them. Computers may connect to each other by either wired or
wireless media.
, router
workstation
Computer Network server
mobile
A set of communication elements connected local ISP
by communication links
Communication elements
◦ Computers, printers, mobile phones, …
regional ISP
◦ Routers, switches, ...
Communication links
◦ optic fiber
◦ coaxial cable
◦ twisted pair
◦ wireless (radio, microwave, satellite) company
Topologies network
◦ Ring, Star, Bus, Tree, Mesh
, Types of Networks
1. Local Area Network
2. Wide Area Network
3. Metropolitan Area Network
4. Hybrid Network
5. Personal/Home Area Network
6. Internetwork
7. Peer to Peer Networks
8. Virtual Private Network
A system of interconnected computers and computerized peripherals
such as printers is called computer network.
This interconnection among computers facilitates information sharing
among them. Computers may connect to each other by either wired or
wireless media.
, router
workstation
Computer Network server
mobile
A set of communication elements connected local ISP
by communication links
Communication elements
◦ Computers, printers, mobile phones, …
regional ISP
◦ Routers, switches, ...
Communication links
◦ optic fiber
◦ coaxial cable
◦ twisted pair
◦ wireless (radio, microwave, satellite) company
Topologies network
◦ Ring, Star, Bus, Tree, Mesh
, Types of Networks
1. Local Area Network
2. Wide Area Network
3. Metropolitan Area Network
4. Hybrid Network
5. Personal/Home Area Network
6. Internetwork
7. Peer to Peer Networks
8. Virtual Private Network
