1.The difference between analog and digital technologies is that in analog technology, information is translated into electric pulses. In digital technology, information is translated into binary format (zero or one)
2. modem?
A dial-up modem converts a digital signal into analog signals for data transmission over telephone lines. At the receiving computer, another modem converts the analog signals back into digital signals that the computer can process
3. A LAN network stands for a Local Area Network. A Local Area Network is different to a Wide Area Network (WAN) because it covers a geographically smaller space.
4. The advantages of using a network are...
Facilitating Communications: people can communicate efficiently and easily via email, Facebook, instant messaging, chat rooms, video telephone calls, wireless, messaging services and videoconferencing.
Sharing Hardware: Each networked computer can access and use hardware on the network. E.g: Printer or Server

Sharing Data and Information: In a networked environment, any authorized computer user can access data and information stored on other computers in the network. The capability of providing access to and storage of data and information on shared storage devices is an important feature of many networks.

Sharing Software: Users connected to a network can access software (programs) on the network. To support multiple-user access of software, most software vendors sell network versions of their software. In this case,