chapter 01 revised

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


See for Detailed Objectives

4

A World of Computers

• Computers are everywhere


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


Page 6

Information Processing Cycle

6

What Is a Computer?


Figure 1-2

7

The Components of a Computer

• A computer contains many electric, electronic, and mechanical components known as hardware


Pages 6 - 8

8

The Components of a Computer


Page 7 Figure 1-3

9

What input devices do you use?


Page 7 Figure 1-3

10

What output devices do you use?


Page 7 Figure 1-3

11

Which of these is NOT a storage device:


Page 7 Figure 1-3

A. DVDB. Memory cardC. USB flash driveD. Motherboard

12

Which of these is NOT a storage device:


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

http://www.scsite.com/dc2010cp/ch1/weblink/


15

Networks and the Internet

• A network is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media



16

What networks do you use?

• Public places?• At work?• At home?


17


• The Internet is a worldwide collection of networks that connects millions of businesses, government agencies, educational institutions, and individuals


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


• People use the Internet for a variety of reasons:



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

26


• A social networking Web site encourages members to share their interests, ideas, stories, photos, music, and videos with other registered users


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


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



32

Computer Software

• A programmer develops software or writes the instructions that direct the computer to process data into information


Page 18 Figure 1-13

33

How do you know if software will run on your computer?


Page 18 Figure 1-13

34

Which of the following is a kind of program that allows a user to perform

maintenance-type tasks?


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?


Page 18 Figure 1-13

A. ApplicationB. SystemC. UtilityD. Graphical

36

Categories of Computers


Page 19

37

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


Page 19 Figures 1-15 - 1-16

38

Is this computer a:


Page 18 Figure 1-13

A. TowerB. UprightC. CompactD. All-in-oneE. Netbook

39

Mobile Computers and Mobile Devices


Pages 20 - 23

40



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



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


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


Page 25 Figure 1-25

44

Types of Servers:

• Print Servers• File Servers• Terminal Servers• Application Servers


Page 24 Figure 1-24

45

Mainframes

• A mainframe is a large, expensive, powerful computer that can handle hundreds or thousands of connected users simultaneously


Page 25 Figure 1-26

46

Supercomputers

• A supercomputer is the fastest, most powerful computer– Fastest supercomputers are capable of processing

more than one quadrillion instructions in a single second


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


Page 26

48

Embedded Computers


Page 26 Figure 1-28

49

Embedded computers usually are large with extensive hardware.


Page 7 Figure 1-3

A. TrueB. False

50

Embedded computers usually are large with extensive hardware.


Page 7 Figure 1-3

A. TrueB. False

51

Which of these can accommodate two to thousands of simultaneously connected

users?


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?


Page 7 Figure 1-3

A. Embedded computerB. ServerC. Game consoleD. Personal computer

53

Elements of an Information System


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


Page 27 Figure 1-29

55

Examples of Computer Usage


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


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


58

Computer Applications in Society


Pages 34 - 36 Figures 1-36 – 1-39

59

Computer Applications in Society


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


CLICK TO START

61

Quiz: scsite.com/dc2010/ch1/quizObjectives 8-11


Page 39

Living in a Digital World

Discovering Computers 2010

62Chapter 1 Complete

chapter 01 revised

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