nn nn
INTRODUCTION TO nn
JAVA
nn
PROGRAMMING
nn
AND DATA
nn nn
STRUCTURES
nn
COMPREHENSIVE
nn
VERSION, 12TH
nn nn
EDITION, Y. DANIEL
nn nn nn
LIANG
nn
, Chapter nn1 nnIntroduction nn to nnComputers, nnPrograms, nn and nn Java
Section nn1.2 nnWhat nnis nna nnComputer?
1. is nnthe nnphysical nn aspect nnof nn the nncomputer nnthat nncan nn be nnseen.
a. Hardware
b. Software
c. Operating nnsystem
d. Application nnprogram
Key:a nnSee nnthe nnfirst nnparagraph nnin nnSection nn1.2.
#
Section nn1.2.1 nnWhat nnis nna nn Computer?
2. is nnthe nn brain nnof nn a n n computer.
a. Hardware
b. CPU
c. Memory
d. Disk
Key:b nnSee nn the nnfirst nnparagraph nnin nnSection nn1.2.1.
#
3. The nnspeed nnof nn the nnCPU nn may nnbe nn measured nn in .
a. megabytes
b. gigabytes
c. megahertz
d. gigahertz
Key:cd nnSee nnthe nnthird nnparagraph nnin nnSection nn1.2.1. nn1 nnmegahertz nnequals nn1 nnmillion nnpulses nnper nnsecond nnand nn1
nngigahertz nnis nn1000 nnmegahertz.
#
Section nn1.2.2 nnBits nnand nnBytes
4. Why nndo nncomputers nnuse nnzeros nnand n n ones?
a. because nncombinations nnof nn zeros nnand nnones nncan nn represent nnany nnnumbers nn and nn characters.
b. because nndigital nndevices nnhave nn two nnstable nnstates nnand n n it nnis nnnatural nnto nnuse nn one nn state nnfor nn0 nnand nn the nnother
nnfor nn1.
c. because nnbinary nnnumbers nnare nnsimplest.
d. because nnbinary nnnumbers nnare nnthe nnbases nnupon nnwhich nnall nnother nnnumber nnsystems
nnare nnbuilt. nnKey:b nnSee nnthe nnsecond nnparagraph nnin nnSection nn1.2.2.
#
5. One nnbyte nnhas bits.
a. 4
b. 8
c. 12
d. 16
Key:b nnSee nn the nnthrid nn paragraph nnin nnSection nn1.2.2.
#
5. One nngigabyte nn is nnapproximately bytes.
a. 1 nnmillion
b. 10 nnmillion
c. 1 nnbillion
d. 1 nntrillion
Key:c nnSee nnthe nnfifth nnparagraph nnin nnSection nn1.2.2.
© 2020 Pearson Education, Inc., Hoboken, NJ. All rights reserved. This material is protected under all copyright laws as they currently exist.
,#
Section nn1.2.3 nnMemory
6. A nnprogram nnand nn its nn data nnmust nnbe nn moved nninto nnthe nncomputer's before nnthey nncan nn be nn executed nnby nnthe
nnCPU.
a. memory
b. hard nndisk
c. CPU
d. CD-ROM
Key:a nnSee nnthe nnfirst nnparagraph nnin nnSection nn1.2.3.
#
Section nn1.2.4 nnStorage nnDevices
6. nnA nncomputer's is nnvolatile; nnthat nnis, nnany nninformation nnstored nn in nnit nnis nnlost nn when nnthe nnsystem's nnpower nnis
nnturned nnoff.
a. memory
b. hard nndisk
c. flash nnstick
d. CD-ROM
Key:a nnSee nnthe nnfirst nnparagraph nnin nnSection nn1.2.4.
#
6. Which nnof nnthe nnfollowing nn are nnstorage nndevices?
a. portable nndisk
b. hard nndisk
c. flash nnstick
d. CD-ROM
Key:abcd nnSee nn the nnsecond nnparagraph nnin nnSection nn1.2.4.
#
Section nn1.2.5 nnInput nnand nnOutput nnDevices
7. The specifies nnthe nnnumber nnof nnpixels nn in nnhorizontal nnand nn vertical nndimensions nnof nnthe nndisplay
nndevice.
a. screen nnresolution
b. pixel
c. dot nnpitch
d. monitor
Key:a nnSee nnthe nnthird nnlast nn paragraph nnin nnSection nn1.2.5.
#
Section nn1.2.6 nnCommunications nnDevices
7. is nna nndevice nnto nnconnect nna nn computer nnto nn a nn local n n area nnnetwork nn(LAN).
a. Regular nnmodem
b. DSL
c. Cable nnmodem
d. NIC
Key:d nnSee nnthe nnbullet nnitems nnin nnSection nn1.2.6.
#
Section nn1.3 nnProgram nnLanguages
8. are nninstructions nnto nnthe nncomputer.
a. Hardware
b. Software
c. Programs
d. Keyboards
Key:bc nnSee nnthe nnKey nnPoint nnin
© 2020 Pearson Education, Inc., Hoboken, NJ. All rights reserved. This material is protected under all copyright laws as they currently exist.
, nn Section nn1.3. nn#
© 2020 Pearson Education, Inc., Hoboken, NJ. All rights reserved. This material is protected under all copyright laws as they currently exist.