Chapter 13

Discovering Computers 2011 : Living in a Digital World Answer

True/False

1.   True
2.   True
3.   True
4.   True
5.   True
6.   False
7.   False
8.   True
9.   False
10. False

Multiple Choice

1. B
2. C
3. C
4. A
5. A
6. C
7. B
8. B

Matching

1.  G
2.  D
3.  J
4.  I
5.  C
6.  E
7.  A
8.  H
9.  B
10. F

Short Answer

1. A) A compiler translates all of the lines of program before executing it, while interpreter translates one line and execute it immediately.

B) The advantage : if it find errors, it displays a feedback so a programmer can correct the error before it translates the next line of code. The disadvantage is it doesn’t run as fast as compiled programs

2. A) It can reuse and modify existing objects

B) The programmer writes only a segment of the program then implements it instead of waiting until the program is completed.

3. A) Tools for building graphical user interfaces, an editor for entering program code, a compiler and/or interpreter, and a debugger

B) It uses graphical interface to create all source code. The graphical interface is called visual programming environment that allows users to drag and drop to develop program

4. A) XML is used to develop a website whose content can be formatted to display appropriately on various devices

B) RSS 2.0 (Really Simple Syndication) and ATOM both are kind of web feed used to publish frequent works, such as blogpost / news headline

5. A) review the program code and review all the documentation

B) it reduces the amount of time a new programmer need to learn about existing programs