Il`
Il`
Il`
Il`
TEST BANK FOR INTRODUCTION TO JAVA PROGRAMMING AND DATA STRUCTURES
Il` Il` Il` Il` Il` Il` Il` Il` Il`
COMPREHENSIVE VERSION, 12TH EDITION, Y. DANIEL LIANG
Il`
Il`
Il` Il` Il` Il` Il` Il` Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Il`
Section 1.2 What is a Computer? Il` Il` Il` Il` Il` Il`
1. is the physical aspect of the computer that can be seen.
Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
a. Hardware Il`
b. Software Il`
c. Operating system Il` Il`
d. Application program Il` Il`
Il`
Key:a See the first paragraph in Section 1.2. Il` Il` Il` Il` Il` Il` Il` Il`
# Il`
Section 1.2.1 What is a Computer? Il` Il` Il` Il` Il` Il`
2. Il` Il` is the brain of a computer. Il` Il` Il` Il` Il` Il` Il` Il`
a. Hardware Il`
b. CPU Il`
c. Memory Il`
d. Disk Il`
Il`
Key:b See the first paragraph in Section 1.2.1. Il` Il` Il` Il` Il` Il` Il` Il`
# Il`
3. The speed of the CPU may be measured in
Il` .
Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
a. megabytes Il`
b. gigabytes Il`
c. megahertz Il`
d. gigahertz Il`
Key:cd See the third paragraph in Section 1.2.1. 1 megahertz equals 1 million pulses per second and 1 gigahertz is 1000
Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
Il`
megahertz.
Il` Il`
# Il`
Section 1.2.2 Bits and Bytes Il` Il` Il` Il` Il`
4. Why do computers use zeros and ones?
Il` Il` Il` Il` Il` Il` Il` Il`
a. because combinations of zeros and ones can represent any numbers and characters.
Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
b. because digital devices have two stable states and it is natural to use one state for 0 and the other for 1. c. because
Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
binary numbers are simplest.
Il` Il` Il` Il` Il`
d. because binary numbers are the bases upon which all other number systems are built. Key:b
Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il` Il`
Il`
See the second paragraph in Section 1.2.2.
Il` Il` Il` Il` Il` Il` Il` Il`
# Il`
5. One byte has
Il` bits. Il` Il` Il` Il`
a. 4 Il`
b. 8 Il`
c. 12 Il`
d. 16 Il`
Il`
Key:b See the thrid paragraph in Section 1.2.2. Il` Il` Il` Il` Il` Il` Il` Il`
, # Il`
5. One gigabyte is approximately
Il` Il` bytes. Il` Il` Il` Il`
a. 1 million Il` Il`
b. 10 million Il` Il`
c. 1 billion Il` Il`
d. 1 trillion Il` Il`
Key:c See the fifth paragraph in Section 1.2.2.
Il` Il` Il` Il` Il` Il` Il` Il`