Discovering Computers 2011 - Arif Sariarifsari.net/comp108course/Lecture1.pdf · 2012-02-11 ·...
Transcript of Discovering Computers 2011 - Arif Sariarifsari.net/comp108course/Lecture1.pdf · 2012-02-11 ·...
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Living in a Digital World
Discovering
Computers 2011
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Objectives Overview
Discovering Computers 2011: Living in a Digital World
Chapter 12See Page 3
for Detailed Objectives
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Objectives Overview
Discovering Computers 2011: Living in a Digital World
Chapter 13See Page 3
for Detailed Objectives
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A World of Computers
• Computers are everywhere
Discovering Computers 2011: Living in a Digital World
Chapter 14Pages 4 - 5
Figure 1-1
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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
Discovering Computers 2011: Living in a Digital World
Chapter 15Page 6
Information Processing Cycle
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What Is a Computer?
Discovering Computers 2011: Living in a Digital World
Chapter 16Page 6
Figure 1-2
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The Components of a Computer
• A computer contains many electric, electronic, and
mechanical components known as hardware
Discovering Computers 2011: Living in a Digital World
Chapter 17Pages 6 - 8
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The Components of a Computer
Discovering Computers 2011: Living in a Digital World
Chapter 18Page 7
Figure 1-3
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Advantages and Disadvantages
of Using Computers
Advantages of Using Computers
Disadvantages of Using Computers
Discovering Computers 2011: Living in a Digital World
Chapter 19Pages 9 - 10
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Advantages and Disadvantages
of Using Computers
• Green computing involves reducing the electricity
consumed and environmental waste generated when
using a computer
• Strategies include:
– Recycling
– Regulating manufacturing processes
– Extending the life of computers
– Immediately donating or properly disposing of replaced computers
Discovering Computers 2011: Living in a Digital World
Chapter 110Page 10
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Networks and the Internet
• A network is a
collection of computers
and devices connected
together, often
wirelessly, via
communications
devices and
transmission media
Discovering Computers 2011: Living in a Digital World
Chapter 111Pages 10 - 11
Figure 1-6
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Networks and the Internet
• The Internet is a worldwide collection of networks that
connects millions of businesses, government agencies,
educational institutions, and individuals
Discovering Computers 2011: Living in a Digital World
Chapter 112Page 11
Figure 1-7
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Networks and the Internet
• People use the Internet for a variety of reasons:
Discovering Computers 2011: Living in a Digital World
Chapter 113Pages 12 - 13
Figure 1-8
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Networks and the Internet
• A social networking Web site encourages
members to share their interests, ideas, stories,
photos, music, and videos with other registered
users
Discovering Computers 2011: Living in a Digital World
Chapter 114Page 14
Figure 1-9
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Computer Software
• Software, also called a program, tells the
computer what tasks to perform and how to
perform them
Discovering Computers 2011: Living in a Digital World
Chapter 115Pages 15 - 16
Figures 1-10 - 1-11
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Computer Software
• Installing is the process of setting up software to
work with the computer, printer, and other
hardware
Discovering Computers 2011: Living in a Digital World
Chapter 116Pages 16 - 17
Figure 1-12
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Computer Software
• A programmer develops
software or writes the
instructions that direct
the computer to
process data into
information
Discovering Computers 2011: Living in a Digital World
Chapter 117Page 18
Figure 1-13
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Categories of Computers
Discovering Computers 2011: Living in a Digital World
Chapter 118Page 19
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Personal Computers
• A personal computer can perform all of its input,
processing, output, and storage activities by itself
• Two popular architectures are the PC and the
Apple
– Desktop computer
Discovering Computers 2011: Living in a Digital World
Chapter 119Page 19
Figures 1-15 - 1-16
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Mobile Computers and Mobile Devices
Discovering Computers 2011: Living in a Digital World
Chapter 120Pages 20 - 23
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Mobile Computers and Mobile Devices
Discovering Computers 2011: Living in a Digital World
Chapter 121Pages 20 - 22
Figures 1-17 – 1-20
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Mobile Computers and Mobile Devices
Discovering Computers 2011: Living in a Digital World
Chapter 122Pages 22 - 23
Figures 1-21 – 1-23
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Game Consoles
• A game console is a
mobile computing
device designed for
single-player or
multiplayer video
games
Discovering Computers 2011: Living in a Digital World
Chapter 123Page 24
Figure 1-24
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Servers
• A server controls access
to the hardware,
software, and other
resources on a network
– Provides a centralized
storage area for
programs, data, and
information
Discovering Computers 2011: Living in a Digital World
Chapter 124Page 25
Figure 1-25
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Mainframes
• A mainframe is a large,
expensive, powerful
computer that can
handle hundreds or
thousands of connected
users simultaneously
Discovering Computers 2011: Living in a Digital World
Chapter 125Page 25
Figure 1-26
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Supercomputers
• A supercomputer is the fastest, most powerful
computer
– Fastest supercomputers are capable of processing
more than one quadrillion instructions in a single
second
Discovering Computers 2011: Living in a Digital World
Chapter 126Page 25
Figure 1-27
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Embedded Computers
• An embedded computer is a special-purpose
computer that functions as a component in a
larger product
Discovering Computers 2011: Living in a Digital World
Chapter 127Page 26
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Embedded Computers
Discovering Computers 2011: Living in a Digital World
Chapter 128Page 26
Figure 1-28
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Elements of an Information System
Discovering Computers 2011: Living in a Digital World
Chapter 129Page 27
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Elements of an Information System
Discovering Computers 2011: Living in a Digital World
Chapter 130Page 27
Figure 1-29
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Examples of Computer Usage
Discovering Computers 2011: Living in a Digital World
Chapter 131Pages 28 – 31
Figures 1-30 – 1-32
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Examples of Computer Usage
Discovering Computers 2011: Living in a Digital World
Chapter 132Pages 31 – 32
Figures 1-33 – 1-34
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Computer Applications in Society
Discovering Computers 2011: Living in a Digital World
Chapter 133Pages 34 - 36
Figures 1-36 – 1-39
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Computer Applications in Society
Discovering Computers 2011: Living in a Digital World
Chapter 134Pages 36 - 38
Figures 1-40 – 1-43
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Video: Computer History in a Barn
Discovering Computers 2011: Living in a Digital World
Chapter 135
CLICK TO START
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Summary
Discovering Computers 2011: Living in a Digital World
Chapter 136Page 39
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Living in a Digital World
Discovering
Computers 2011
Chapter 1 Complete