2. a. Networks enable people to share computer hardware resources, reducing costs and making it possible for more people to take better advantage of powerful computer equipment.
b. Networks enable people to share data and software programs, increasing efficiency and productivity.
c. Networks enable people to work together, or collaborate, in ways that are otherwise difficult or impossible.
6. a. Terminal emulators: A program that emulates a video terminal within another form of display.
b. File transfer programs: Transmitting files over a computer network or the internet.
7. It can be used to share files over a network to each student's computer station. A software licensing issue that might be raised by using a file server in a student lab is that although the stations are connected through a network, you must still get a separate software license for each student's computer.
8. a. Email is transmitted from the sender’s computer to server and from there to the recipients server from where it can either be viewed or downloaded. IM is short for Instant Messaging and needs the users to be logged in to the same server. Messages are delivered instantly.
b. Email can be read independent of the software that was used to create it whereas the IM requires the users to use the same client.
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