A network is two or more computer link together to share resources(such as printer) exchange files.
network link through cables, telephone lines, radio waves, satellites, or infrared light beams.
Types of Networks
LAN- Local area network,covered small geographical area.
WAN-Wide Area Network,covered large geographical area such as the federal
government.
Metropolitan Area network (MAN)
Wireless LAN (WLAN)
Storage Area Network (SAN)
Networking Typologies
Bus Topologyallows information to be directed from one computer to the other.
Ring Topology
Uses a token to pass information from 1 computer to the other. A token is attached to the message by the sender to identify which computer should receive the message. as the message moves around the ring,each computer examines the token. if the computer identifies the token as its own, then it will process the information.