Sarujanviews

Introduction to local Area Networks HUB • A hub is the most basic central connecting device. • Hubs enable computer on a network to communicate. • A host sends data to the hub. The hub sends the data to all devices connected to the hub. Switch • Switches work the same way as a hub, but they can identify the intended recipient of the data. • Switches can send and receive data at the same time Router • Routers enable computers to communicate and allow Communication between two networks- such as your home network and the internet. • This communications link between the one network and the others is where the LAN ends. Serial Data Transfer and IP Addresses • Serial data transfer is the transfer of one bit at a time – in other words, transfer in a single-bit stream, like a one lane highway. • On the network cable, data travels in a single bit stream. Data Transfer Rate • Data transfer rate defines...