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Living in a Digital World
Discovering Computers 2010
2
Objectives Overview
Discovering Computers 2010: Living in a Digital WorldChapter 1
See Page 3 for Detailed Objectives
3
Objectives Overview
Discovering Computers 2010: Living in a Digital WorldChapter 1
See Page 3 for Detailed Objectives
4
A World of Computers
• Computers are everywhere
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 4 - 5 Figure 1-1
5
What Is a Computer?
• A computer is an electronic device, operating under the control of instructions stored in its own memory
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 6
Information Processing Cycle
6
What Is a Computer?
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 6 Figure 1-2
7
The Components of a Computer
• A computer contains many electric, electronic, and mechanical components known as hardware
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 6 - 8
8
The Components of a Computer
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 7 Figure 1-3
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What input devices do you use?
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 7 Figure 1-3
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What output devices do you use?
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 7 Figure 1-3
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Which of these is NOT a storage device:
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 7 Figure 1-3
A. DVDB. Memory cardC. USB flash driveD. Motherboard
12
Which of these is NOT a storage device:
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 7 Figure 1-3
A. DVDB. Memory cardC. USB flash driveD. Motherboard
13
Advantages and Disadvantages of Using Computers
Advantages of Using Computers
Disadvantages of Using Computers
Discovering Computers 2010: Living in a Digital WorldChapter 1Pages 9 - 10
Discovering Computers 2010: Living in a Digital World Chapter 1
14
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
Page 10
Click to view Web Link,click Chapter 1, Click Web Link from left navigation, then click Green Computing below Chapter 1
15
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 2010: Living in a Digital WorldChapter 1
Pages 10 - 11 Figure 1-6
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What networks do you use?
• Public places?• At work?• At home?
Discovering Computers 2010: Living in a Digital WorldChapter 1
17
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 2010: Living in a Digital WorldChapter 1
Page 11 Figure 1-7
Click to view Web Link,click Chapter 1, Click Web Link from left navigation, then click The Internetbelow Chapter 1
18
Networks and the Internet
• People use the Internet for a variety of reasons:
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 12 - 13 Figure 1-8
People connect, learn, and interact through SOCIAL MEDIA sites.
Dictionary
Blogs are ___________Some examples are _____
Dictionary
Blogs are online journals, informalSome examples are wordpress, blogger
Dictionary
Social Media are ___________Some examples are _____
Dictionary
Social Media are tools that enable anyone to publish on the webSome examples are facebook, blogger, linked in, scribd, ezine
Dictionary
Social Networking is ___________Some examples are _____
Dictionary
Social Networking is a type of social media that focuses on building online communities of people who share interests and/or activities, or who are interested in exploring the interests and activities of others. Some examples are facebook, YouTube, twitter, Ning
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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 2010: Living in a Digital WorldChapter 1
Page 14 Figure 1-9
Click to view Web Link,click Chapter 1, Click Web Link from left navigation, then click MySpacebelow Chapter 1
Dictionary
RSS Feeds are ___________
Feed Readers are ________________
Dictionary
RSS Feedsare headlines alerting you to changes made to a website, blog, or social network you subscribe to; they are directed to your email or a feed reader. Some examples of readers are google reader, flock
What, besides, text, can a web page contain?
30
Computer Software
• Software, also called a program, tells the computer what tasks to perform and how to perform them
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 15 - 16Figures 1-10 - 1-11
Click to view Web Link,click Chapter 1, Click Web Link from left navigation, then click Windowsbelow Chapter 1
31
Computer Software
• Installing is the process of setting up software to work with the computer, printer, and other hardware
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 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 2010: Living in a Digital WorldChapter 1
Page 18 Figure 1-13
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How do you know if software will run on your computer?
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 18 Figure 1-13
34
Which of the following is a kind of program that allows a user to perform
maintenance-type tasks?
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 18 Figure 1-13
A. ApplicationB. SystemC. UtilityD. Graphical
35
Which of the following is a kind of program that allows a user to perform
maintenance-type tasks?
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 18 Figure 1-13
A. ApplicationB. SystemC. UtilityD. Graphical
36
Categories of Computers
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 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 2010: Living in a Digital WorldChapter 1
Page 19 Figures 1-15 - 1-16
38
Is this computer a:
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 18 Figure 1-13
A. TowerB. UprightC. CompactD. All-in-oneE. Netbook
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Mobile Computers and Mobile Devices
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 20 - 23
40
Mobile Computers and Mobile Devices
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 20 - 22 Figures 1-17 – 1-20
Click to view Web Link,click Chapter 1, Click Web Link from left navigation, then click Camera Phonebelow Chapter 1
41
Mobile Computers and Mobile Devices
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 22 - 23Figures 1-21 – 1-23
Click to view Web Link,click Chapter 1, Click Web Link from left navigation, then click Digital Cameras below Chapter 1
42
Game Consoles
• A game console is a mobile computing device designed for single-player or multiplayer video games
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 24 Figure 1-24
43
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 2010: Living in a Digital WorldChapter 1
Page 25 Figure 1-25
44
Types of Servers:
• Print Servers• File Servers• Terminal Servers• Application Servers
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 24 Figure 1-24
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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 2010: Living in a Digital WorldChapter 1
Page 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 2010: Living in a Digital WorldChapter 1
Page 25 Figure 1-27
47
Embedded Computers
• An embedded computer is a special-purpose computer that functions as a component in a larger product
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 26
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Embedded Computers
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 26 Figure 1-28
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Embedded computers usually are large with extensive hardware.
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 7 Figure 1-3
A. TrueB. False
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Embedded computers usually are large with extensive hardware.
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 7 Figure 1-3
A. TrueB. False
51
Which of these can accommodate two to thousands of simultaneously connected
users?
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 7 Figure 1-3
A. Embedded computerB. ServerC. Game consoleD. Personal computer
52
Which of these can accommodate two to thousands of simultaneously connected
users?
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 7 Figure 1-3
A. Embedded computerB. ServerC. Game consoleD. Personal computer
53
Elements of an Information System
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 27
Click to view Web Link,click Chapter 1, Click Web Link from left navigation, then click Women in Technology below Chapter 1
54
Elements of an Information System
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 27 Figure 1-29
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Examples of Computer Usage
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 28 – 31Figures 1-30 – 1-32
Click to view Web Link,click Chapter 1, Click Web Link from left navigation, then click Minorities in Technology below Chapter 1
56
Examples of Computer Usage
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 31 – 32Figures 1-33 – 1-34
Click to view Web Link,click Chapter 1, Click Web Link from left navigation, then click Enterprise Computing below Chapter 1
57
What applications do you use?
• Word processing• Personal finance• Reference• Entertainment• Communications• Web browsing
Discovering Computers 2010: Living in a Digital WorldChapter 1
58
Computer Applications in Society
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 34 - 36 Figures 1-36 – 1-39
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Computer Applications in Society
Discovering Computers 2010: Living in a Digital WorldChapter 1
Pages 36 - 38Figures 1-40 – 1-43
Click to view Web Link,click Chapter 1, Click Web Link from left navigation, then click OnStar below Chapter 1
60
Video: Computer History in a Barn
Discovering Computers 2010: Living in a Digital WorldChapter 1
CLICK TO START
61
Quiz: scsite.com/dc2010/ch1/quizObjectives 8-11
Discovering Computers 2010: Living in a Digital WorldChapter 1
Page 39
Living in a Digital World
Discovering Computers 2010
62Chapter 1 Complete
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