Networks

Network: it’s a group of computer systems and other hardware devices are linked together through communication channels to facilitate communication and resource-sharing Among a wide range of users

There are 4 main types of networks
LAN: a computer network that can be connected to other LANs over a distance
MAN: a computer network that spans a entire city or campus
WWW: a computer network online that have a lot of every type of information
WAN: a connection that exist over a large-scale geaographical area