This slide looks at the types of networks that organizations use. Ask students what the differences are between digital and analog signals. Ask students to describe and distinguish between LANs, CANs, WANs, and MANs, and also to talk about their different range of operation. Note that a network can be defined by the way the clients interact (client/server versus peer-to-peer), the type of physical medium to carry signals (Ethernet, Fast Ethernet, etc.), and the way in which computers are connected and send signals to each other (topology).