Chapter 1

Question 1

Which of the following is true about 1 bit?
a. Can represent decimal values 0 and 9
b can be used to represent on character in the lowercase English alphabet
c. Represents on binary digit
d. Represents four binary digits

Answer 1

c. Represents on binary digit

Question 2

Which of the following terms mean approximately 106 bytes?

a. terabyte
b. megabyte
c. gigabyte
d. kilobyte

Answer 2

b. megabyte

Question 3

Which answer lists the correct number of bits associated with each term?

a. 8 bits per double word
b. 32 bits per word
c. 64 bits per quadruple word
d. 4 bits per byte.

Answer 3

c. 64 bits per quadruple word

Question 4

Which of the following answers are true about random access memory as it is normally used inside a personal computer?
chose two
a. used for short tem memory
b. used for long term memory
c. used to process data
d. connects to the cput over a bus using a cable
e. is installed onto the motherboard

Answer 4

. used for short tem memory

e. is installed onto the motherboard

Question 5

A user has opened a word processor, typed the numbers 123456789, and stored the document as a file called report 1. Which of the following determines, in part what bits the computer stores in the file to represent the text typed into the report?

a. keyboard map
b. Pixel grid
c. Character set
d. the binary equivalent of decimal 123456789

Answer 5

Character set

Question 6

Which of the following is not a feature of a file system that might be used with a hard disk drive?

a. actuator arm
b. a directory
c. a file
d. a place to keep directory information on the hard disk

Answer 6

a. actuator arm

Question 7

Which of the following ansers best describes hw a hard disk drive physically writes a binary 0 or 1
a using an electrical charge
b. using a magnetic charge
c. changing the disk’s surface so that later the light will reflect differently for 0 and 1
d. holding a sound wave in a vacuum

Answer 7

b. using a magnetic charge