TIA9e_ch06_answer_key

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Technology in Action, Ni
nth Edition

Answer Key Chapter
6


BUZZ WORDS

W
ord Bank



access

time



c
ache memory



cores



C
PU usag
e

graph



d
ata transfer rate



e
SATA



E
xpress
C
ards



f
ront side bus



G
DDR5



GPU



h
ard drive



HDMI



m
emory module
s



M
oore’s
L
aw



RAID 1



R
AM



s
ound card



S
SD



s
urround sound


I
nstructions:

Fill in the blan
ks using the words from the Word Bank above.

Luis

already has a
desktop PC

but just heard about a great deal on a new one. He decides
to perform
a system evaluation

on his computer to see whether he should keep it or buy
the new one. First, he
watches the
load on the processor using

the
(1)___
CPU usage
graph
______

in Windows.
Because he has a multiple (2) __
cores
__ in his processor,
there are multiple graphs to follow.
Because he is often
having system crashes
, he begins
to suspect his system is suffering f
rom too little (3) __
RAM
________.

He has room for
an additional two

(4) _
memory modules
___ on his motherboard. Adding memory is
something he learned how to do this semester, but would that be enough to make this
machine
fit his

needs?

H
e visits the Intel Web site to check two other important factors on his model of CPU:
the amount of (5) __
cache memory
__ and the speed of the (6) _
front side bus
__. It looks
like the newer i7 processor would be
much faster overall. It seems each generation of
processors is so much faster than the last. That rule, (7) _
Moore’s law
__, is still holding
true!

Luis

continues to evaluate his system by checking out which components he has and
which ones he’ll need. He n
otes the storage capacity of
his mechanical

(8) _
hard drive
_

and decides he needs more room
. Recently, he has been wishing his system had a(n) (9)
__
eSATA
___ port
. As it is, he is running out of space to store files. But the (10) __
access

time
__, or the am
ount of time it takes to retrieve data from the disk drive, on any
mechanical drive is slow compared to the (11) ___
SSD
_____ in the new computer he’s
eyeing, which has no moving parts at
all.
Luis

is really concerned about having a backup
of his work so he
’s going to use two cheaper mechanical drives, connected in (12)
__
RAID_
1
__ to guarantee immediate backup of every change
.

The new video card
include
s

a specialized

(13) __
GPU
_____
that can process 3D data with great speed
. It
would be great if he could ta
ke advantage of the
7
.1 (14) _
surround sound
__ that is on the
gaming software he runs
.

It’s tough to play the games he wants though since
his current system doesn’t meet the
minimum
video
requirements for
the newer games
.
The current video

cards have
blind
ingly fast (15) __
GDDR5
____

memory
, and some
people
even
use multiple cards
.
Overall, with prices dropping, it seems like time to go buy that new system!


MULTIPLE CHOICE

Instructions:

Answer the multiple
-
choice and true/false questions below for more
prac
tice with key terms and concepts from this chapter.

1
.

Which statement about notebook computers is FALSE?

a
.

Notebooks typically have a longer lifespan than desktop computers.

b
.

Note
books are typically less reliable

than desktop computers
.

c
.

Notebooks can be docked to larger monitors.

d
.

Notebook
s

are more difficult to expand or upgrade.

2
.

SSD

is classified as what type of storage?

a
.

Volatile


b
.

Nonvolatile


c
.

Video

d
.

Cache

3
.

To document a problem you are having, you can use

a
.

Disk Cleanup.

b
.

Problem Steps Recorder.

c
.

PC De
c
rapifier.

d
.

Resource Monitor.

4
.

If you want your system to run reliably, you should

a
.

add

all programs
to

the Startup folder.

b
.

save all of your temporary Internet files.

c
.

install programs in the system tray.

d
.

defragment the hard drive.

5
.

Which best describes RAID 0 technology?

a
.

Saved data is spread across two hard drives.

b
.

Data is written to one drive and mirrored to a second drive.

c
.

RAID 0 allows you to store twice the data.

d
.

RAID 0 provides an instant backup of your work.

6
.

CPUs have several internal components, including

a
.

L2 cache.

b
.

ALU.

c
.

Level 1 ca
che memory.

d
.

All of the above
.

7
.

Which is
not

a type of
video port
?

a
.

HDMI

b
.

DVI

c
.

USB 3.
0

d
.

DisplayPort

8
.

A sound card that supports 7.1 surround sound will drive

a
.

7 speakers
.

b
.

1 speaker
.

c
.

8 speakers.

d
.

Dolby headphones
.

9
.

SuperFetch is a memory
-
management technique that

a
.

determines the type of RAM your system requires.

b
.

makes the boot
-
up time for the system very quick.

c
.

preloads the applications you use most into system memory.

d
.

defragments the hard drive to increa
se performance.

1
0.

What is the name for the time it takes a storage device to locate its stored data and
make it available for processing?

a
.

Rotational latency

b
.

Access time

c
.

Data transfer rate

d
.

Seek time

T
rue

False

__
T
___ 1.

A
quad core

CPU
with hyperthreading has eight virtual CPUs
.

__
T
___ 2.

The memory that your operating system uses is referred to as kernel memory.

__
F
___ 3.

SSD hard drives need to be defragged but mechanical hard drives do not
.

__
F
___ 4.

Cache memory is a form of read
-
only memory that can be accessed more
quickly by
the CPU.

__
F
_
_
_ 5.

GDDR5 memory is often used in eSATA drives
.