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This quiz consists of 5 multiple choice and 5 short answer questions through Chapter 9.

Multiple Choice Questions

1. "Entropy" was first used by what individual to describe the unavailability of energy?
(a) Isaac Newton.
(b) Albert Einstein.
(c) Rudolph Clausius.
(d) Galileo Galilei.

2. There was no "looking up" of information prior to what invention?
(a) Pen and ink.
(b) Printing machines.
(c) Publishing houses.
(d) Writing.

3. What jobs were created to handle the increasing number of telephone calls?
(a) Secretaries.
(b) Switchboard operators.
(c) Office assistants.
(d) Call center personnel.

4. What was Shannon able to theoretically compute by measuring a message in bits? By measuring information in bits, he could theoretically compute the maximum amount of information that could be transmitted through a given channel.
(a) The limits of computing.
(b) The virtual size of the message in microns.
(c) The maximum amount of information that could be transmitted.
(d) The maximum size a message could be.

5. What does the word "entropy" describe in relationship to thermodynamics?
(a) The availability of energy in a system.
(b) The functionality of a system.
(c) The temperature of a system.
(d) The efficiency of a system.

Short Answer Questions

1. Shannon used the term entropy to have what meaning in reference to a message?

2. What was difficult for people to accept about telegraph communications?

3. A new interest in what pursuit arose following the rise of the telegraph?

4. What was the Morse code based on?

5. All known alphabets are based on the original alphabet that emerged about 1500 B.C. in what area?

(see the answer key)

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