CIS 123 Written assignment 2 (Chapters 3, 4)

1. There is a lot of confusion between the terms efficiency and productivity (as defined in the text). Briefly define the terms efficiency and productivity as they are used in the text. (2 pts)
2. What is the point of creating a prototype? (1 pt)
3. What does the acronym JIT stand for? (1 pt)
4. An important concept in computers is the client/server architecture. What does a client do that makes it a client? What does a server do that makes it a server? (2 pts) Note: A single computer can be both a client and a server since these roles depend upon software. It is common for a computer which is normally a server to also act as a client with some other server.
5. What qualities does primary memory have that are different than secondary memory? You should list at least two differences. (2 pts) Note: The text refers to primary memory as internal and secondary memory as external. That is incorrect. Secondary memory includes the internal hard drive of computer systems. So please don't use the terms internal or external in your list of differences.
6. RFID is a great technology, but there is a lot of misunderstanding about how it works. Some people have suggested they could implant RFID chips in their cars or children and then use GPS satellites to locate them when they get lost. Why doesn't that idea work? (2 pts)