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NOTE: Answers to questions can be found at the end of this file.

ExamName___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

1)


A binary digit is referred to as a


1)


_______ A)


number.


B)


byte.


C)


digit.


D)


bit. 2)


Which of the following is TRUE?


2)


_______ A)


There is one system for encoding data. B)


Information used by a computer uses the decimal number system. C)


Binary code cannot be used to represent sounds. D)


Binary code can be used to represent colors. 3)


Hexadecimal represents numbers using which base?


3)


_______ A)


2


B)


10


C)


16


D)


8 4)


A byte an be interpreted by the computer as all of the following EXCEPT


4)


_______ A)


an entire file.


B)


a letter. C)


a number.


D)


a character. 5)


In the RGB system, when all three component colors are set to zero, what is the result?


5)


_______ A)


The decimal and hexadecimal values differ. B)


The resulting color is white. C)


The resulting color is black. D)


The light for each color is turned on. 6)


How many primary colors are used in the RGB system?


6)


_______ A)


2


B)


an unlimited number C)


3


D)


255 7)


Four digits in a binary number are equivalent to how many digits of a hexadecimal number?


7)


_______ A)


2


B)


1


C)


16


D)


10

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

8)


The _______________ numbering system uses base 10.


8)


_____________ 9)


A computer stores information using on-off switches. In a binary numbering system, which number represents an ON switch?


9)


_____________

10)


A computer stores information using on-off switches. In a binary numbering system, which number represents an OFF switch?


10)


_____________


11)


For each numbering base, the _________________ digit represents a value of one.


11)


_____________

12)


________________ numbers are used as a compromise because binary numbers are difficult to read.


12)


_____________

13)


A binary digit is referred to as a _________________.


13)


_____________

14)


In a hexadecimal number, each place value digit is ________________ times greater that the place digit to its right.


14)


_____________

15)


When all RGB primary colors on a computer display are set to zero, the resulting color is ________________.


15)


_____________

16)


In the binary numbering system, each digit can have ________________ possible values.


16)


_____________

17)


In a decimal number, each digit is ten times ________________ than the digit to its left.


17)


_____________

18)


The ______________ system is used to represent the amount of red, green, and blue in a color.


18)


_____________

19)


What do the letters RGB stand for in the RGB system for displaying colors?


19)


_____________

20)


Match the following terms to their meaning.

I. binary A. number thatrepresents the value of each digit

II. hexadecimal B. numbering system that uses 0s and 1s

III. decimal C. coding system for displaying colors on a computer

screen

IV. RGB D. people normally use this numbering system

V. base E. numbering system that uses base 16


20)


_____________


1)


D 2)


D 3)


C 4)


A 5)


C 6)


C 7)


B 8)


decimal 9)


1, one 10)


0, zero 11)


last, right 12)


Hexadecimal 13)


bit 14)


16, sixteen 15)


black 16)


2, two 17)


smaller, less 18)


RGB 19)


red, green, blue 20)


B, E, D, C, A

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