chapter 1000-1 csc
TRANSCRIPT
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Chapter 1 Objectives
Recognize the importance ofcomputer literacy
Identify the components ofa computer
Discuss the uses of the Internet andWorld Wide Web
Identify the categories of software
Describe the categories of computers
Identify the types ofcomputer users
Discuss various computerapplications in society
Next
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What Is a Computer? How is a computerdefined?
p. 3
Produces and stores results
Next
Electronic device operating under the control of
instructions stored in its own memory
Processes data intoinformation
Data that is organized,meaningful, and useful
Acceptsdata
Raw facts, figures, andsymbols
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Storage
Communications
Advantages and Disadvantages
of Using Computers
What are the advantages of using computers?
p. 5
Speed
Reliability
Next
Consistency
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Advantages and Disadvantages
of Using Computers
What are the disadvantages of using computers?
p. 5 Next
Violation of
Privacy
Impact on
Environment
Impact on
Labor Force
Health Risks
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What Is a Computer? What is the information processing cycle?
p. 5 Fig. 1-2 Next
Input
Process
Output
Storage Communication
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The Components of a Computer What is an input device?
p. 6 Fig. 1-3
Hardware used
to enter data
and instructions
Next
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The Components of a Computer
What is an output device?
p. 7 Fig. 1-3
Hardware that
conveysinformation
to one or more
people
Next
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The Components of a Computer
What is the system unit?
p. 7 Fig. 1-3 Next
Box-like case
containing
electronic
components
used to process
data
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The Components of a Computer
What are two main components on the motherboard?
p. 7
Central Processing Unit (CPU)
Also called a processor
The electronic component that interprets and carriesout the basic instructions that operate the computer
Next
Memory
Consists of electronic components that store
instructions waiting to be executed and data needed by
those instructions
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The Components of a Computer
What is storage?
p. 7
Storage media
Physical material on which data, instructions,
and information are stored
Storage device
Records and retrieves items to and from
a storage medium
Next
Holds data, instructions, and information
for future use
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The Components of a Computer
What is storage media?
p. 7 Next
Floppy Disks
Memory Cards
DVDs
CDs
Hard Disks
USB Flash Drives
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Retrieves
(reads)
items fromstorage
media
Records (writes)
items to storagemedia
The Components of a Computer
What is a storage device?
p. 7 Next
Often function
as a source
of input
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The Components of a Computer What is a floppy disk?
p. 7 Next
Thin, circular,
flexible disk
enclosed in rigid
plastic shell
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The Components of a Computer
What is a USB flash drive?
p. 7 Next
Provides much
greater storage
capacity than a
floppy disk orZip disk
Small and
lightweight enough
to be transported
on a keychain or
in a pocket
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The Components of a Computer
What is a hard disk?
p. 7 Fig. 1-4 Next
Provides greater storage
capacity than a
floppy disk, Zip disk, or
USB flash drive
Most are housed inside
of the system unit
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The Components of a Computer
What is a compact disc?
p. 7 Fig. 1-5 Next
Flat, round, portable metal disc
CD-ROM
DVD-ROM
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The Components of a Computer
What is a communications device?
Nextp. 8
Hardware component that
enables a computer tosend and receive data, instructions,
and information
Occurs over cables, telephonelines, cellular radio networks,
satellites, and other
transmission media
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To share
Networks and the Internet
A network is a collection of computers and devicesconnected together
p. 8
Resources
Hardware
devices Software
programsData
To save
time
and
money
Information
Next
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Networks and the Internet
What is the Internet?
p. 8 Fig. 1-6 Next
Worldwide collection of networks that connects
millions of businesses, government agencies,
educational institutions, and individuals
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Networks and the Internet
p. 9 Fig. 1-7
Why do users access the Internet?
2. Information
3. Shopping
4. Banking and Investing
5. Classes
6. Entertainment
Next
1. Communications
7. Download Music8. Share Information
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Networks and the Internet
What is the Web?
p. 10
A Web site isa collection of
related Web pages
A Web page containstext, graphics, audio,
video, and links to
other Web pages
You can share
information bycreating Web pages
or posting photos on
a photo sharing
community
Next
Billions of documents, called Web pages, available to
anyone connected to the Internet
A blog consists of time-
stamped articles in
a journal format
A podcast is
recorded audiostored on a Web site
that can be
downloaded
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Consists of a seriesof instructions that
tells the computer
what to do
Computer Software
What is software?
p. 10 Next
Also called a
program
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Computer Software What is a graphical user interface (GUI)?
p. 10 Fig. 1-8 Next
Allows you to
interact with the
software using
graphics and icons Controls how you
enter data and how
the screen displays
information
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Computer Software What is system software?
p. 10 - 11
Operating System (OS)is a set of programs
that coordinates all
activities among
computer hardware
devices and allowsusers to run
application software
Utility Programsallow the user toperform maintenance-type tasks
usually related to managing a
computer, its devices or its programs
Next
Programs that control or maintain the operations of
the computer and its devices
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Computer Software
What is application software?
p. 11 Fig. 1-9
Presentation
Graphics
Spreadsheet
Database
Word
Processing
Programs that perform
specific tasks for users
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Computer Software
How do you install and run programs?
p. 11 - 12 Fig. 1-10 Next
Step 1: INSTALL
When you insert a greeting
card program disc
in the CD drive for the first
time, the computer
begins the procedure of
installing the greetingcard program on the hard
disk.
Step 3: USE
The greeting card program
executes. Using this program,
you can create custom greeting
cards.
Step 2: RUNOnce installed, you can
instruct the computer to run
the greeting card program.
The computer transfers
instructions from the hard
disk to memory.
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Computer Software What is a programmer?
p. 12 Fig. 1-11 Next
Someone who developsapplication or systemsoftware
Programmer writesthe instructions todirect the computer to
process data intoinformation
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Categories of Computers
p. 13 Next
What are the categories of computers?
Personal Computers
(desktop)
Mobile Computers and
Mobile Devices
Game Consoles
Servers
Mainframes
Supercomputers
Embedded Computers
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Personal ComputersWhat are the two most popular series ofpersonalcomputers?
p. 14 Figs. 1-13
1-14 Next
PC and compatibles
use the Windows
operating system
Apple Macintosh
uses the Macintosh
operating system(Mac OS)
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Personal Computers
What is a desktop computer?
p. 14 Fig. 1-13 Next
Designed so all of the components fit on or under
a desk or table
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Mobile Computers and Mobile Devices
What is a notebook computer?
p. 14 - 15 Fig. 1-15 Next
Portable, small enough
to fit on your lap
Also called a laptop
computer
Generally more
expensive than a desktop
computer
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Mobile Computers and Mobile Devices
What is a Tablet PC?
p. 15 Fig. 1-16 Next
Especially useful for taking
notes
Resembles a letter-sized slate
Allows you to write on thescreen using a digital pen
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Mobile Computers and Mobile Devices What is a handheld computer?
p. 15 Next
Used
by mobile
employees such as
meter readers and
delivery people
Small
enough to fitin one
hand
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Mobile Computers and Mobile Devices
What is a personal digital assistant (PDA)?
p. 15 Fig. 1-17 Next
Provides personal organizer functions
Calendar
Appointment book
Address book
Calculator
Notepad
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Mobile Computers and Mobile Devices
What are smart phones?
p. 16 Figs. 1-18 Next
A smart phone isan Internet-enabled
telephone that usually
provides PDA capabilities
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Game Consoles What are game consoles?
p. 16 Fig. 1-19 Next
Mobile computing device designed for
single-player or multiplayer video games
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Servers
What types of servers are there?
p. 16 - 17 Figs. 1-20
1-22
Mainframe Very powerful,
expensive computer that supports
thousands of computers
Supercomputer The fastest, most
powerful, most expensive
computer. Used for applicationsrequiring complex mathematical
calculations
Next
A server controls access to network
resources and provides centralized
storage
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Embedded Computers
What is an embedded computer? A special-purpose computer that functions as a
component in a larger product
p. 17 - 18 Fig. 1-23 Next
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Examples of Computer Usage
What are five categories of computer users?
Home User
Small Office/Home Office User
Mobile User
Power User Large Business User
p. 18 Next
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Examples of Computer Usage
What software is available for a home user?
Personal Finance Management
Web access
CommunicationsEntertainment
p. 18 - 19 Fig. 1-24 Next
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Examples of Computer Usage
What software is available for a smalloffice/home office (SOHO) user?
p. 20 Fig. 1-25
Productivity
software
Specialtysoftware
Web usage
E-mail
Next
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Hardware Notebook computers
PDAs
Smart phones Tablet PCs
Examples of Computer UsageWhat is available for
a mobile user?
p. 20 Fig. 1-26
Software Word processing
Spreadsheet
Presentation graphicssoftware
Next
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Examples of Computer Usage What are the needs of a power user?
p. 21 Fig. 1-27 Next
Speed and large amounts of storage
Types of power users
Engineers
Architects Desktop publishers
Graphic artists
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Examples of Computer Usage
What are the needs of the large business user?
p. 21 - 22 Figs. 1-28
1-29 Next
Payroll
Inventory
E-commerce
Desktop
publishing
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Computer Applications in Society
What are some examplesof computer applications
in society?
p. 22-25 Figs. 1-30
1-37 Next
Education
Finance
Government Healthcare
Science
Publishing
Travel Manufacturing
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Summary of Introduction to Computers
The computer and its components
What is a network?
The Internet and theWorld Wide Web
Types of software
Categories of computers
Types of computer users
Computer applications in society
Chapter 1 Complete