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Business Computer
Information Systems
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Unit 10
BUSINESS COMPUTER
INFORMATION SYSTEMS
UNIT
ten
Computer Operating Systems
Unit 10 Introduction................................................................................................................................ 1
Unit 10 Goals and Objectives .................................................................................................................. 1
I.
An Introduction to Operating Systems....................................................................................... 3
What is an Operating System?............................................................................................. 3
Utilities................................................................................................................................ 9
II.
Self Test 1: An Introduction to Operating Systems.............................................................. 15
Type of Operating Systems........................................................................................................ 18
Mac.................................................................................................................................. 18
Windows.......................................................................................................................... 23
Linux................................................................................................................................. 30
III.
Self Test 2: Types of Operating Systems.............................................................................. 35
Using the Operating System...................................................................................................... 39
Getting Started–Exploring the Desktop.............................................................................. 39
Using Interface.................................................................................................................. 45
Programs and Files............................................................................................................ 51
Self Test 3: Using the Operating System............................................................................. 57
Project: Customize Your Desktop....................................................................................... 61
IV.
Review Computer Operating Systems....................................................................................... 65
V.
Semester Review......................................................................................................................... 75
Unit 10 Test: Computer Operating Systems.................................................................... Pull-Out
Units 6-10 Semester Exam................................................................................................ Pull-Out
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LIFEPAC Business Computer
Information Systems
Foreword
Business Computer Information Systems is a ten-unit
high school elective that explores the use of technology
applications in both business and personal situations.
Occupations have transitioned from those that primarily
produced things to those that manipulate and manage
information. Whether it is at home, in a factory, at a school,
for a business, or in an office, almost everyone today uses
many forms of technology on a daily basis. This course
will explore the software applications and information
technologies that everyone is likely to use in business
situations.
Production Manager:
Alan Christopherson
Editorial:
Managing Editor:
Alan Christopherson
In this course the students will learn computer
terminology, hardware, software, operating systems and
information systems that relate to the business environment.
The units will concentrate on learning the standard
applications of word processing, spreadsheets, database
management and graphical presentation packages. In
addition, skills in personal and interpersonal communications
and in communication technologies will be studied.
Copy Editor:
Laura Messner
Art, Layout, and Design:
Layout and Design:
Brian Ring, Melissa Fransen
Illustration:
The course is intended to help students arrive at the
following understandings:
Brian Ring, Melissa Fransen
Cover Design:
Ryan Egan
Some images that appear in this unit are © 2009
JupiterImages Corporation.
•
Effective communication skills and productive work
habits can increase employees’ success.
•
Technology solutions can help employees be more
productive and effective.
Keyboarding is a stated prerequisite for this course.
While there are some keyboarding reviews in the course,
there is no keyboarding instruction.
Screen capture(s) created using OpenOffice.org 2.4.1
courtesy of Sun Microsystems Inc. Copyright 2000–2008
Sun Microsystems Inc. Microsoft product screen captures
were reprinted with permission from Microsoft Corporation.
Scribus 1.3.3.12 screen shots are courtesy of the Scribus
Project (www.scribus.net).
Business Computer Information Systems covers topics
from TEKS §120.23 and §120.64.
Business Computer Information Systems contains the
following units:
All trademarks and/or service marks referenced in
this material are the property of their respective owners.
Glynlyon, Inc. makes no claim of ownership to any
trademarks and/or service marks other than its own and
its affiliates’, and makes no claim of affiliation to any
companies whose trademarks may be listed in this material,
other than its own.
LIFEPAC Business Computer and Information Systems –
Unit 10: Computer Operating Systems © 2010 Glynlyon, Inc.
804 N. 2nd Ave. E.
Rock Rapids, IA 51246-1789
ii
Unit 1 — Communication Skills
Unit 2 — Business Technology
Unit 3 — Word Processing
Unit 4 — Spreadsheets
Unit 5 — Databases
Unit 6 — Telecommunications Technology
Unit 7 — Desktop Publishing Technology
Unit 8 — Presentation Technology
Unit 9 — Computer Networks
Unit 10 — Computer Operating Systems
Unit 10: Computer Operating Systems
Introduction
In this unit, you will learn about your computer’s operating system—the most important program installed on your
computer. The operating system (OS) makes it possible for you to interact with your computer.
Your goals for the unit include the following:
•
Describe the purpose and function of computer operating systems.
•
Compare different computer operating systems.
•
Discuss how to use the Windows interface to work productively.
In Section One you will learn about computer operating systems. The chapter focuses on operating system functions and
their utility programs.
Section Two focuses on the most commonly used operating systems—Windows, Mac, and Linux. You will explore their
development and compare their features.
Section Three focuses on the interface of the Windows operating system—the OS most commonly used by businesses.
You will learn your way around the desktop, how to use menus and dialog boxes, and where to find help. You will also learn
file management procedures to enable you to efficiently work with the documents you create using your computer.
The objectives for this unit include the following:
•
Explain the functions of the computer operating system.
•
Identify and describe the components of common GUIs.
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Identify common operating system utilities and describe their functions.
•
Trace the development of operating systems.
•
Compare Windows, Mac, and Linux.
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Explain the purpose of the items on the Windows desktop.
•
Describe the significance of symbols found in Windows menus.
•
Identify places you can go in Windows to get help.
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Explain file management procedures—organizing, opening, printing, saving, and deleting.
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I.An Introduction to Operating Systems
What is an Operating System?
What part of your body is most like a computer operating system? If you answered your central nervous system,
you’re right! Without your central nervous system, you would be little more than a bunch of body parts—bones,
organs, muscles, etc. Your central nervous system ties these parts together, telling them what they need to do and how
to work together to keep you alive and functioning.
Similarly, without an operating system a computer would be little more than an expensive box. It couldn’t do any of
the things you rely on it to do—open programs, connect to the Internet, send your documents to the printer, etc.
In this lesson, you will learn about the operating system’s role in running your computer.
Objectives:
• Explain the functions of the computer operating system.
• Identify and describe the components of common GUIs.
Vocabulary:
command - instructions that tell a computer what to do.
desktop - the background screen on a computer; the main work area.
GUI - graphical user interface enabling users to easily interact with their computers.
menu - list of commands.
multitasking - performing more than one task at a time.
window - rectangular area on a computer screen where the action takes place.
Although the computer is the device most commonly
associated with operating systems, other items are
controlled by operating systems as well. Emerging
technologies such as MP3 players, cell phones, and
personal digital assistants all have operating systems.
What Does an Operating System Do? The OS is
the boss of your computer—it is in charge of everything
your computer does. Without an OS, a computer would
be a useless machine. The main functions the OS provides
include:
What Is an Operating System? Your computer runs
two different types of software—application software
and system software. You are probably most familiar
with application software. This type of software includes
word processing, drawing, spreadsheets, and other
applications. The operating system (OS) is system software
that is installed on a computer to control and organize
its component parts—memory, hardware, and software.
Most of the computers used in businesses come with an
OS already installed. The most commonly used operating
systems are the Windows series. Other commonly used
OS’s include Macintosh and Linux.
All the devices shown below have something in
common. Do you know what that is?
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isplaying the Graphical User Interface (GUI);
d
managing application software;
coordinating the interaction of hardware and
software;
handling data storage and retrieval.
GUI. The OS’s of most computers used in businesses,
schools, and the home function in a graphical user
environment that makes it relatively simple for people
to interact with their computers. In the early days of
computers, the computing environment was much less
user-friendly. Computers were controlled in a command-
3
based environment. In this type of environment, users
had to remember a series of commands and type them
after what was called a command prompt to tell the
computer what to do.
command from a menu. In the example below, selecting
the E-mail icon opens MS Outlook.
Please refer to the media
CD to view Menus.
Windows. When you use application software, the
program opens in a window. Like a window in your
home, a window on your computer can open and close.
A window is an opening on the computer screen where
the action takes place. When you use a program, it opens
in a rectangular window. The window may take up the
entire screen or just a portion of the screen. The window
can be resized.
Just as you can have more than one window open at
a time in your home, most operating systems in use today
allow you to have more than one window open at one
time. In fact, it is common for workers to have several
open windows running different applications at once.
This is called multitasking. Workers can even resize the
windows so they can work on more than one at the same
time.
Dylan, for example, is using a word processing
program to draft the monthly sales report. He needs to
include figures from a spreadsheet he created, so he
opens that file. The spreadsheet opens in a new window.
He can switch back and forth between the documents.
In the GUI environment, the OS makes it possible
for you to make your computer perform a number of
different functions just by clicking your mouse. You are
probably very familiar with the GUI. It is most likely how
you tell your computer what you want it to do. Common
features provided by most GUIs include:
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icons;
desktop;
menus;
windows.
Icons. The GUI provides you with pictures called
icons that represent different commands, or actions that
you want the computer to perform, such as opening a
program, or printing a document. A pointing device, such
as a mouse, is used to click an icon. Clicking on the icon
causes the computer to perform a task.
The desktop. The demonstration below shows
you a computer desktop. The icons displayed on most
desktops represent resources stored on the computer—
files, folders, application software, and printers. Another
icon commonly found on the desktop is a place to discard
items.
Users can open programs and files from their
desktops. They can also modify their desktops in a
number of ways including adding and deleting icons from
it. For this reason, desktops of computers running the
same operating system may appear different.
Please refer to the media
CD to view Windows.
Managing application software. The OS provides
a way for you to use the programs you want. It serves as
an interface, or translator between the commands you
give and the computer’s resources—memory, software,
or printer. Application software provides instructions to
your operating system. These instructions are known
as “system calls” because they call on your system to
provide services.
Let’s take a look at some of the services the OS
provides for application software. If you want to open
a spreadsheet you saved earlier, you might launch your
spreadsheet program and select Open from the File
menu. When you do this, your spreadsheet software must
request a service from your OS. Your OS generates a list
of files from which you can choose the one you want.
After you select the file you want, the OS loads the file
into the computer’s memory so it is available for you to
work with. When you’re done working on the file, you
will save it. Your spreadsheet program will also request
this service from your OS. Your OS saves your file in an
appropriate location so that you’ll be able to use it again.
Please refer to the media
CD to view The Desktop.
Menus. Another common feature of most GUIs is
the menu. Menus are another way you can tell your
computer what to do. Menus are screens that display
a list of commands. Users can tell their computers to
perform a number of different actions by selecting a
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Coordinating the interaction of hardware and
software. The OS manages how application software
works with other software programs as well as with the
computer’s hardware—the central processing unit (CPU),
random access memory (RAM), mouse, keyboard, printer,
etc. The OS allocates the computer’s resources to enable
it to perform the actions you request, such as entering
information into a word processing document, printing
a spreadsheet, opening your presentation, querying your
database, or saving your DTP layout. This coordination is
very important as there is a lot of activity going on behind
the scenes when you are working on your computer.
As was discussed earlier, OS’s let you multitask. You
can have several different programs open at once. It is the
job of the OS to allocate RAM to the open applications
so they function properly. When you use the mouse or
keyboard to communicate with the computer or the
application you are using, the OS interprets these actions
so that you get the results you want. Clicking on an
icon causes an action to take place, such as opening a
program or a file. Pressing keys on your keyboard will
cause characters to appear in the open window. The OS
also provides you with the ability to copy information
from one document to another. When you want to print
your file, your spreadsheet program will request printing
services from the OS. The OS sends your job to the
printer.
Handling data storage and retrieval. The OS
manages the computer’s filing system. It controls how
information is stored on the computer and how it is
accessed. Your computer has two types of files—program
files and data files. Program files are the components
that make your application software run. They provide
the information to your word processing or spreadsheet
program that tells it what to do. Typical programs may
contain hundreds or even thousands of files. The image
below shows you the folders and files that make up MS
Office, a popular application used by many businesses.
and spreadsheet documents are data files. Managing
the program and data files is a very important service
the OS provides. This service is essential to the effective
functioning of your application software. It also makes it
possible to access the data files you have created.
Keeping track of these files is a big job. To perform
this task, the OS makes an index of all the files stored on
the computer. This index is called a File Allocation Table
(FAT). The OS updates the FAT every time a file is created,
renamed, moved, or deleted. Additionally, to keep things
organized, the OS assigns letters to the computer’s disks
or drives to make the storage and retrieval of computer
resources easier.
Your Turn
In this lesson, you learned about operating systems.
Now it’s your turn to explore your computer to learn a bit
more about it.
Please refer to the media
CD to complete Explore
Your Computer.
Lets Review!
In this lesson you learned about computer operating
systems—the brains of the computer. The OS controls
and organizes the computer’s parts—memory, hardware,
and software. It performs a number of essential functions,
including:
Keep in mind that each of the folders also contains a
number of files. Generally computers have a number of
different applications on them.
However, program files aren’t the only files the OS
is responsible for. You will recall that there is another
type of file stored on computers. Data files are files
created by the computer’s users. Your word processing
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displaying the GUI;
managing application software;
coordinating the interaction of hardware and
software; and
handling data storage and retrieval.
Multiple Choice
1.1
What OS is most commonly used by businesses?______
A.Linux
B.Macintosh
C.Microsoft
D.Windows
1.2
This provides an easy method for workers to use their computers._____
A.DOS
B.FAT
C.GUI
D.RAM
Multiple Select
1.3
Select the application software.__________________________
A. graphical user interface
B. random access memory
C.spreadsheet
D. word processing
Multiple Choice
1.4
What is the function of the GUI?______
A.
B.
C.
D.
1.5
These are pictures that you can click on to tell your computer what to do.______
A.menus
B.icons
C.peripherals
D.FATs
coordinates the interaction of the computer’s hardware and software
loads application software into the computer’s memory
provides an interface between the user and the OS
updates the File Allocation Table
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1.6
A(n)______is a list of commands that tell your computer what to do.
A.menu
B.GUI
C.icon
D.FAT
True or False
1.7
True/False
The desktops of computers running the same OS all look the same.
Multiple Choice
1.8
When you open your word processing program, it opens in a______.
A.field
B.form
C.menu
D.window
1.9
The instructions for the OS provided by application software are known as______.
A.GUIs
B.interfaces
C.RAMs
D. system calls
1.10
How does the OS make multitasking possible?______
A.
B.
C.
D.
1.11
The index used by the OS to manage computer files is called a(n) ______.
A.API
B.FAT
C.GUI
D.RAM
by allocating RAM to open applications
by creating the FAT
by providing a GUI
by sending commands to the printer
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Multiple Choice
1.12
This type of file is created when you save your word processing document._______
A.access
B.data
C.program
D.system
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Utilities
If you’re like many students your age, you probably have a cell phone. Most basic cell phones let you make and
receive telephone calls and text messages. Most also provide organizational tools such as a calendar, alarm clock, and
calculator. Does your cell phone do more? Many cell phones have extra features that enhance cell phone capabilities
or even enable it to perform additional functions. Ring tones are an example of an enhancement. They provide more
options for how a phone will sound when it rings. The ability to surf the Net or take pictures are examples of added
features that increase the jobs a cell phone is able to do.
The utility programs you will learn about in today’s lesson are much like the added cell phone features—not
necessary to basic function, but rather an enhancement or addition to the tasks the computer’s operating system is able
to perform.
Objectives:
• Identify common operating system utilities.
• Describe the function of common operating system utilities.
Vocabulary:
defragmentation - process of uniting split-up files so the pieces are saved next to each other on the hard
drive.
encryption - scrambling data so that it can be safely transmitted over the Internet.
fragmented - broken up computer file saved in multiple parts in different places on the hard drive.
multimedia - combination of text, graphics, animation, audio and video in one file.
SOHO - group of networked computers in a small office or home office; small office home office.
sound card - computer device that records and plays digital audio files.
utility - a program that provides a service for a computer.
File Management and Security
items it needs are all stored together, it can find, access,
and retrieve them faster and more efficiently.
You’ve probably heard your parents talk about
utilities and may be wondering what utilities have
to do with computing. Like the utilities used in your
home—gas, water, electric, or phone—utility programs
provide services for your computer. The most common
types of services provided by utility programs include file
management, security, communication, accessibility, and
entertainment.
When you press the save button on your computer,
your document is stored in your computer’s memory. If
the file is small enough, it will be saved in one location on
your computer’s hard drive. However, if the file is large,
it will be broken up, or fragmented. Portions of the file
will be saved where there is room on the disk. After a
period of time, computers become fragmented. When
this occurs, the files the computer needs to access are
stored in different places on the hard drive and it takes
the OS longer to find and retrieve them when you open
the file. As a result, computer operations are slowed
down.
File Management
One of the main purposes of your computer is to
store, maintain, and retrieve data. File management
utilities help keep your computer and its files in
good working order. Some of the most common file
management utilities are described below.
The following picture provides an example of a
fragmented file. The file is represented by the red area.
Notice that the file is split into two parts and is saved in
different places on the hard drive.
Defragmentation. When you are rushing to get
ready for school in the morning, you will probably be able
to get dressed quicker if your clothes are all together. If
some are in the closet, some are under the bed, some
are in the living room, and still others are in the laundry
room, the process will take longer. Your computer’s
operating system (OS) works the same way. When the
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File compression. This type of utility reduces the size
of a file by taking out unnecessary pieces of information.
When this data is removed, the files are smaller; they are
compressed. Compressed files can be up to 70 percent
smaller than the original files. They take up less room on
your computer and can be transmitted faster when they
are sent as e-mail attachments. Common file compression
programs include WinZip and StuffIt.
Backup. You’ve probably heard the expression,
“don’t put all your eggs in one basket.” The logic behind
this expression is that if you have all of your eggs in one
basket and something happens to that basket, you won’t
have any eggs left. Well, the same thing is true for the
files on your computer. If you keep all your files in one
place (your hard disk) and something happens to it (like it
crashes), all your files will be lost. For this reason, backing
up data is essential.
Fortunately, operating systems come with utility
programs that can be run to defragment a computer.
When defragmentation utilities are run, they find the
pieces of the files that are stored in different locations on
the computer’s disk and move data around so that the
pieces of files can be stored together.
To improve the performance of their computers
and increase their productivity, many workers keep their
computers tuned-up by “defragging” them on a regular
basis.
Most businesses have backup utility programs
scheduled to run at regular intervals to protect the
organizations’ data. Backup utilities save numerous files
to another storage device—an external hard drive, a
magnetic tape drive, or compact disks.
Cleaners. As the name implies, cleaning utilities
“clean up” your hard drive, providing more space. They
get rid of unnecessary files. These programs generally
remove temporary files that are installed on your
computer when you surf the Web, delete temporary
files created by the OS, and empty the Recycling Bin.
Disk Clean Up is the name of the cleaner used by the
Windows OS. Workers using this OS can access this
utility through the System Tools menu, located within
the Accessories menu. If your computer is running the
Windows OS, you can see how much space you could
free up by running this utility.
Vocabulary
Defragging is a term that people often use
to indicate the running of a defragmentation
program.
To improve the performance of their computers
and increase their productivity, many workers
keep their computers tuned-up by “defragging”
them on a regular basis.
Windows is the OS used in most businesses. Workers
can access the Disk Defragmenter utility through the
System Tools menu from the Accessories menu. Once
they access the program, they can see how much free
space is available. They can also see how much space
they will have after running the application.
Most operating systems come with disk
defragmenters. However, sophisticated defragmenting
programs can be purchased. These applications do a
better job of rearranging fragmented data and using
vacant disk space.
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Firewall. This utility program provides a barrier
between a computer or a computer network and external
harmful agents. Firewalls examine data before it is sent
from or comes into a computer or a computer network.
If the data violates the rules that have been set up, the
firewall will not let the data pass.
Antivirus. Viruses are small programs that can spread
through a computer or computer network and interfere
with its functioning. Antivirus utilities scan the system for
viruses and remove any that are found.
Data encryption. Have you ever seen a spy movie
in which espionage agents send messages using a secret
code that only authorized recipients can decipher? Data
encryption utilities work in a similar fashion. Computers
today transmit lots of sensitive data such as social security
and credit card numbers. Data encryption utilities put
this information into a special code when information
is transmitted and saved. When the data is opened by
authorized users, it is decoded so that it can be read.
File wiping. Did you know that when you delete a
file, it is not permanently removed from your computer?
When you delete a file, the OS marks the space on your
hard drive where the file is stored as available. The file
that you deleted can still be accessed until new data is
saved in its place on your hard drive. File wiping utilities
write over deleted files several times, making sure that
they are no longer accessible.
Security
If a computer has access to the Internet, security is a
serious concern. Although surfing the Web makes many
resources readily available, it also exposes computers to
security threats. Computers in the workplace and the
home use a number of security utilities to keep their
computers safe. Some of the more common of these are
described below.
Please refer to the media
CD to view Deleting and
Wiping Files.
11
Multiple Select
1.13
The most common types of utility programs fall into these categories. ____________________
A.accessibility
B.calculation
C.communication
D. data entry
E.entertainment
F. file management
G.security
Multiple Choice
1.14This type of utility moves data around so that the pieces of files can be stored next to each other on a
computer disk.______
A.defragmentation
B.encryption
C.firewall
D.reader
1.15Mariah was working on a multimedia presentation that included both video and audio files. The file was
huge, and she wanted to send it to her coworker in another office. She needed to reduce the size of the
file so that it could be transmitted faster. The utility she used to do this was______.
A.antivirus
B.defragmentation
C. file compression
D.reducer
1.16Cameron, in the payroll department, works with sensitive employee information such as social security
numbers and annual salaries. He knows that this information is safe because his computer has this type of
utility._______
A.antivirus
B.cleaner
C. data encryption
D. file wiping
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Communication, Accessibility, and
Entertainment
Speech recognition. People using this utility speak into
a microphone to tell their computers what to do. This utility
enables people to open applications, enter text, save files,
and print documents using voice commands. In order to use
this utility, however, people must first “train” the software
to correctly interpret the way they speak—their accent and
speech patterns.
Communication
Computers have become a heavily relied-on
communication tool. You probably get a lot of information
through your computer—from the Internet, blogs, wikis,
podcasts, or e-mail. In business, computers are an essential
communications device. Communication utilities make sure
that data can be successfully sent and received by computers
and computer networks. Some of the most widely used
utility programs are discussed below.
Remote control. If you’re like most people, you
probably use remote control devices every day. The most
popular of these is the one that is used to operate the
television set while sitting on the couch. Similarly, remote
control utilities let people operate one computer from
another computer. This is useful for IT personnel who may
be trying to solve a problem on a worker’s computer. It is
also helpful for teachers who are trying to demonstrate a
skill to a student.
Many workers telecommute, doing their jobs from a
location outside of the workplace, such as their homes.
In many instances, workers who telecommute use remote
control to access their computers in the office. They can log
onto the network, run programs, and access files.
Network setup. Many small offices and homes have
more than one computer. These computers often need to
share files, Internet connections, printers, and faxes. Small
Office/Home Office (SOHO) network utility programs make
it possible for computers near each other to share resources.
Entertainment
You may find this difficult to believe, but at one time,
computers delivered information primarily in the form of
text. Pictures were sometimes used to break up the text and
make things a little more interesting.
With the advent of faster computing technology, the
use of computers for entertainment purposes has increased
substantially. Now you can watch videos, tune into your
favorite TV shows, listen to music, or hear the latest podcast
on your computer. Operating systems generally come with
entertainment utilities that make this possible. These utility
programs enable users to create and share multimedia
files—text, graphics, animation, audio, and video. Two of the
most common types of entertainment utilities are discussed
below.
Audio/video file players. These utility programs
let users play multimedia files on their computers. Most
operating systems come with this capability. The most
commonly used program is MediaPlayer that comes with
the Windows OS. The Mac OS uses QuickTime. RealPlayer is
another frequently used program that can be downloaded
for free from the Internet.
Audio recording. Audio recording utilities enable users
with sound cards and microphones to save audio files,
such as speech, music, laughter, clapping, sound effects—
anything that can be heard—to their computers. Some
programs, such as Windows Sound Recorder, let you record,
mix, edit, and play back your sounds.
Accessibility
Accessibility utilities provide tools that make it easier
for people to use their computers. On computers running
the Windows OS, these tools can be opened from the
Accessibility menu on the Accessories menu. Some common
accessibility programs are described below.
Magnifier. This utility enables the user to enlarge the
text on the screen.
Your Turn
In this lesson, you learned about a number of utility
programs that provide services for computers. In this
exercise, you will learn how running one such program could
affect your computer.
Please refer to the media
CD to view Magnifier.
Please refer to the media
CD to complete Utility
Programs.
Reader. This utility program will read the text that
appears on the computer screen. It will also read dialog
boxes, menus, buttons, and characters as they are typed. In
order to use this utility, computers must have a sound card
and speakers.
Onscreen keyboard. This utility displays a keyboard on
the computer screen. People who have difficulty typing using
a regular keyboard can use various pointing devices to select
characters from the keyboard displayed on their computer
monitors.
Lets Review!
In this lesson, you learned that utilities are programs
that provide computer services for your computer. The main
categories of programs include file management, security,
communication, accessibility, and entertainment. This lesson
discussed the most common utility programs within each
category.
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Multiple Choice
1.17Farah works in an office with two other employees. All three share a printer and an Internet connection.
The utility that makes this possible is______.
A.Defragger
B.QuickTime
C.SOHO
D.WinZip
Multiple Select
1.18Examples of utilities that make it possible for people to create and share multimedia files include
________________________ .
A. audio recorders
B.encryptors
C.QuickTime
D.RealPlayer
E. remote controllers
F. video players
Multiple Choice
1.19Lucia has difficulty understanding information that she reads. Things make more sense to her when she
hears them. For this reason, she relies heavily on this computer utility to improve her productivity in the
workplace._____
A.Reader
B. On screen keyboard
C. Speech recognition
D. File wiping
1.20Delia is a special education teacher. In her classroom, students use many different types of utility programs
to make it easier for them to use their computers. This category of utility software is known as____.
A.accessibility
B.automated
C.fragmentation
D.multimedia
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Self Test 1: An Introduction to Operating
Systems
Multiple Choice
1.01
A_____provides an easy way for workers to interact with their computers.
A.FAT
B. command prompt
C. system call
D.GUI
1.02
_____are pictures that you can click on to tell your computer what to do.
A.FATs
B.Menus
C.Applications
D.Icons
1.03
This is a list of commands that tell your computer what to do._____
A.icon
B.FAT
C.GUI
D.menu
1.04
The OS makes multitasking possible by_____.
A.
B.
C.
D.
1.05
The_____is an index used by the OS to manage computer files.
A.RAM
B.FAT
C.API
D.GUI
providing RAM for open applications
creating the FAT
displaying the GUI
queuing print jobs
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