# What's a computer network?
It's a set of interconnected technological devices which can share data, resources, information and services between them and allow economising and improving management.
# What kind of computing networks are there?
- According to administration: P2P(Peer to Peer) or Client-Server
- According to size of the area: WAN(Wide), MAN(Metropolitan), LAN(Local) or PAN(Personal)
- According to connection mean: Wired, wireless or mixed.
- According to topology: Bus, star, ring, tree, mesh or VPN(Virtual Private Network)
# What characteristics do computer networks have?
- They communicate computers through a protocol with unique numerical addresses called IP addresses, with four groups of numbers between dots and between 0 and 255.
- Each network device has a network card with an unique MAC address assigned by the manufacturer which works as interface between the device and the network cable, that can be a twisted pair cable or an optical fiber cable (faster and better communicator).
- Some devices as the hub, the switch or the router control the network traffic or distribute data between the network devices.
This is some of the information I can give you as abstract, but this is a broad topic so you'd never stop learning about computer networks. In addition, we continue developing IT's daily, so there's an infinite world of surprises and advantages for you to discover. Have a great weekend and see you at next post ;P
