Transcript Microsoft Office 2003 Introductory Concepts and Techniques, 2nd Edition Essential Introduction to Computers How to Purchase a Personal Computer.

Microsoft
Office 2003
Introductory Concepts and
Techniques, 2nd Edition
Essential
Introduction to
Computers
How to Purchase a Personal
Computer
Objectives
• Define the term computer and discuss the four
basic computer operations: input, processing,
output, and storage
• Define data and information
• Explain the principal components of the
computer and their use
• Describe the use of hard disks, USB flash
drives, floppy disks, and other storage media
• Discuss computer software and explain the
difference between system software and
application software
Essential Introduction to Computers, 6th Edition
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Objectives
• Identify several types of personal computer
application software
• Discuss computer communications channels
and equipment and the Internet and World Wide
Web
• Define e-commerce
• Explain how to purchase a personal computer
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What Is a Computer?
• A computer is an electronic
device, operating under
the control of instructions
stored in its own memory,
that can accept data
(input), process the data
according to specified
rules (process), produce
results (output), and store
the results (storage) for
future use
• Information Processing
Cycle
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What Are the Components
of a Computer?
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Input Devices
• Any hardware component that allows you
to enter data, programs, commands, and
user responses into a computer
• Input Device
Examples
– Keyboard
– Mouse
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System Unit
• The motherboard, or system board, is the main circuit
board of the system unit
• The processor, also called the central processing unit
(CPU), interprets and carries out the basic instructions
that operate a computer
• The control unit interprets the instructions
• The arithmetic/logic unit performs the logical and
arithmetic processes
• Memory, also called random access memory, or RAM,
consists of electronic components that store data,
instructions, and information, as needed by the
processor
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System Unit
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Output Devices
• Output devices make the information
resulting from processing available for use
• Output Device Examples
– Printers
• Impact
• Nonimpact
• Photo
– Display Devices
• CRT
• LCD
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Storage Devices
• Used to store
instructions, data,
and information when
they are not being
used in memory
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Storage Devices
• Magnetic disks use
magnetic particles to
store items on a disk’s
surface
– Floppy disks
– Zip disks
– Hard disks
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Storage Devices
• Optical discs
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–
–
–
–
–
–
CD-ROM
CD-R
CD-RW
DVD-ROM
DVD-R
DVD+R
DVD-RW
DVD+RW
DVD+RAM
• Tape
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Storage Devices
• Miniature mobile storage
media
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Communications Devices
• A communications device is a hardware
component that enables a computer to
send (transmit) and receive data,
instructions, and information to and from
one or more computers
• Communications occur over transmission
media, such as telephone lines, cables,
cellular radio networks, and satellites
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Computer Software
• System software consists of programs to control
the operations of computer equipment
• Instructions in the operating system tell the
computer how to perform the functions of
loading, storing, and executing an application
program and how to transfer data
• When a computer is turned on, the operating
system is loaded into the computer’s memory
from auxiliary storage, a process called booting
• Most computers use an operating system that
has a graphical user interface (GUI)
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Computer Software
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Computer Software
• Application software consists of programs
that tell a computer how to produce
information
– Word processing software
– Spreadsheet software
– Database software
– Presentation Graphics software
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Computer Software
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Networks and the Internet
• A network is a collection of computers and
devices connected via communications
media and devices
• A local area network (LAN) connects
computers in a limited geographic area
• A wide area network (WAN) covers a large
geographical area
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Networks and the Internet
Local Area Network (LAN)
Essential Introduction to Computers, 6th Edition
Wide Area Network (WAN)
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Networks and the Internet
• The world’s largest
network is the
Internet
• Most users connect
to the Internet in
one of two ways:
– Internet service
provider
– Online service
provider
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The World Wide Web
• One of the more popular segments of the Internet is the
World Wide Web, also called the Web
• A Web page is a document that contains text, graphics,
sound, and/or video and has built-in connections, or
hyperlinks to other Web documents
• A Web site is a related collection of Web pages
• You access and view Web pages using a software
program called a Web browser
• A Web page has a unique address, called a Uniform
Resource Locator (URL)
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The World Wide Web
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Electronic Commerce
• When you conduct business activities
online, you are participating in electronic
commerce, also known as e-commerce
• Business to consumer (B2C) involves the
sale of goods to the general public
• Consumer to consumer (C2C) involves
one consumer selling directly to another
• Business to business (B2B) provides
goods and services to other businesses
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How to Purchase
a Personal Computer
• Do you want a desktop computer, mobile
computer, or personal mobile device?
• For what purposes will you use the
computer?
• Should the computer be compatible with
the computers at school or work?
• Should the computer be a Mac or PC?
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How to Purchase
a Desktop Computer
• Determine the specific software you want to use
on your computer
• Look for bundled software
• Avoid buying the least powerful computer
available
• Consider upgrades to the mouse, keyboard,
monitor, printer, microphone, and speakers
• Determine whether you want to use the
telephone lines or broadband (cable or DSL) to
access the Internet
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How to Purchase
a Desktop Computer
• If you are using a dial-up or wireless connection to
connect to the Internet, then select an ISP or OSP
• Use a worksheet to compare computers, services, and
other considerations
• If you are buying a new computer, consider your several
purchasing options
• If you are buying a used computer, stay with name
brands such as Dell, Gateway, Hewlett-Packard, and
Apple
• If you have a computer and are upgrading to a new one,
then consider selling or trading in the old one
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How to Purchase
a Desktop Computer
•
•
•
•
Be aware of hidden costs
Consider more than just price
Avoid restocking fees
Use a credit card to purchase your new
computer
• Consider purchasing an extended
warranty or service plan
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How to Purchase
a Notebook Computer
• Purchase a notebook computer with a
sufficiently large active-matrix screen
• Experiment with different keyboards and
pointing devices
• Make sure the notebook computer you
purchase has a CD and/or DVD drive
• If necessary, upgrade the processor,
memory, and disk storage at the time of
purchase
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How to Purchase
a Notebook Computer
• The availability of built-in ports on a notebook
computer is important
• If you plan to use your notebook computer for
note-taking at school or in meetings, consider a
notebook computer that converts to a Tablet PC
• Consider purchasing a notebook computer with
a built-in wireless card to connect to your home
network
• If you are going to use your notebook computer
for long periods without access to an electrical
outlet, purchase a second battery
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How to Purchase
a Notebook Computer
• Purchase a well-padded and well-designed
carrying case
• If you travel overseas, obtain a set of electrical
and telephone adapters
• If you plan to connect your notebook computer
to a video projector, make sure the notebook
computer is compatible with the video projector
• For improved security, consider a fingerprint
scanner
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How to Purchase
a Tablet PC
• Make sure the Tablet PC fits your mobile
computing needs
• Decide whether you want a convertible or
pure Tablet PC
• Be sure the weight and dimensions are
conducive to portability
• Port availability, battery life, and durability
are even more important with a Tablet PC
than they are with a notebook computer
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How to Purchase
a Tablet PC
• Experiment with different models of the Tablet
PC to find the digital pen that works best for you
• Check out the comfort level of handwriting in
different positions
• Make sure the LCD display device has a
resolution high enough to take advantage of
Microsoft’s ClearType technologies
• Test the built-in Tablet PC microphone and
speakers
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How to Purchase
a Tablet PC
• Consider a Tablet PC with a built-in PC
video camera
• Review the docking capabilities of the
Tablet PC
• Wireless access to the Internet and your
e-mail is essential with a Tablet PC
• Review available accessories to purchase
with your Tablet PC
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How to Purchase a
Personal Mobile Device
• Determine the programs you plan to run
on your device
• Consider how much you want to pay
• Determine whether you need wireless
access to the Internet and e-mail or mobile
telephone capabilities with your device
• For wireless devices, determine how and
where you will use the service
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How to Purchase a
Personal Mobile Device
• Make sure your device has enough
memory
• Practice with the touch screen,
handwriting recognition, and built-in
keyboard before deciding on a model
• Decide whether you want a color display
• Compare battery life
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How to Purchase a
Personal Mobile Device
• Seriously consider the importance of
ergonomics
• Check out the accessories
• Decide whether you want additional
functionality
• Determine whether synchronization of
data with other devices or personal
computers is important
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Summary
• Define the term computer and discuss the four
basic computer operations: input, processing,
output, and storage
• Define data and information
• Explain the principal components of the
computer and their use
• Describe the use of hard disks, USB flash
drives, floppy disks, and other storage media
• Discuss computer software and explain the
difference between system software and
application software
Essential Introduction to Computers, 6th Edition
38
Summary
• Identify several types of personal computer
application software
• Discuss computer communications channels
and equipment and the Internet and World Wide
Web
• Define e-commerce
• Explain how to purchase a personal computer
Essential Introduction to Computers, 6th Edition
39
Microsoft
Office 2003
Introductory Concepts and
Techniques, 2nd Edition
Essential
Introduction to
Computers
Complete