1. Computer, Internet, Web, and E-Mail Basics C HAPTER 1

2. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics2 Chapter Contents  Section A: Computer BasicsComputer Basics  Section B: Internet BasicsInternet Basics  Section C: Web BasicsWeb Basics  Section D: E-Mail BasicsE-Mail Basics

3. 1 SECTION A Chapter 1: Computer, Internet, Web, and E-Mail Basics3 Section A: Computer Basics  A Computer Is…  Computer Categories  Personal Computer Systems  Data, Information, and Files  Application Software and Operating System Basics

4. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics4 A Computer Is…  Device that accepts input, processes data, stores data, and produces output

5. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics5 A Computer Is…  A stored program means that a series of instructions for a computing task can be loaded into a computer’s memory –Allows you to switch between tasks –Distinguishes a computer from other simpler devices

6. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics6 Computer Categories  Computers are categorized based on criteria such as usage, cost, size, and capability –Microcomputer –Personal computer –Desktop computer –Notebook computer –Tablet computer

7. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics7 Computer Categories –Handheld computer PDA –Workstation Computer network LAN –Videogame console Nintendo’s GameCube Sony’s PlayStation Microsoft’s Xbox

8. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics8 Computer Categories –Mainframe computer Processes data for hundreds of thousands of users –Supercomputer One of the fastest computers in the world –Server Supplies client computers with data

9. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics9 Personal Computer Systems  A computer system refers to a computer and all the input, output, and storage devices that are connected to it

10. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics10 Personal Computer Systems

11. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics11 Personal Computer Systems  Peripheral devices enhance the functionality of a computer

12. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics12 Data, Information, and Files  Data becomes information when it is presented in a format that people can understand and use –Digital format  A file is a named collection of data that exists on a storage medium –Data and executable files –File names and file extensions

13. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics13 Application Software and Operating System Basics  Application software –Set of computer programs that helps a person carry out a task  System software –Helps the computer system monitor itself and function efficiently –Operating systems Microsoft Windows Mac OS

14. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics14 Application Software and Operating System Basics  Two of the most popular personal computer platforms are PCs and Macs  PCs –Based on the design for the IBM PC  Macs –Based on a proprietary design for the Macintosh  PC and Mac platforms are not compatible

15. 1 SECTION B Chapter 1: Computer, Internet, Web, and E-Mail Basics15 Section B: Internet Basics  Internet Resources  Internet Connections  Internet Service Providers  User IDs and Passwords

16. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics16 Internet Resources  The Internet is a collection of linked computer networks  Main communication routes referred to as the Internet backbone –TCP/IP

17. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics17 Internet Resources  Web sites  Search engines  Downloads and uploads  P2P file sharing

18. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics18 Internet Resources  E-mail  Bulletin boards –Usenet  Blogs  Chat groups and instant messaging

19. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics19 Internet Resources  Internet telephony  E-commerce  Broadcasting  Remote access and control

20. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics20 Internet Connections  Dial-up connection –Simple and inexpensive –Signals travel over phone lines –Voiceband modem  Cable Internet service –Computer signals travel over cable TV lines –Cable modem –Always-on connection

21. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics21 Internet Connections To determine whether a computer has a modem, look for a place to plug in a standard phone cable.

22. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics22 Internet Connections  ISDN (Integrated Services Digital Network) –Speeds are marginally better than dial-up  DSL (Digital Subscriber Line) –Up to 125 times faster than dial-up  DSS (Digital Satellite Service) –Average seed is 500 Kbps

23. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics23 Internet Service Providers  Maintains equipment to provide Internet access to subscribers  Where to locate a list of ISPs –Yellow Pages –www.thelist.com –Your computer may contain a directory

24. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics24 Internet Service Providers  How to choose an ISP: –Geographical coverage –Type of service –Quality of service –Cost of monthly service –Cost of equipment and installation –Extra services –Customer service

25. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics25 User IDs and Passwords  Designed to provide access for authorized users –A user ID serves as a person’s unique identifier –A password verifies your identity –Case sensitive

26. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics26 User IDs and Passwords  Choosing a secure password

27. 1 SECTION C Chapter 1: Computer, Internet, Web, and E-Mail Basics27 Section C: Web Basics  The World Wide Web  Browsers  Search Engines

28. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics28 The World Wide Web  Collection of files that can be linked and accessed using HTTP  The World Wide Web consists of: –Web pages –Links –Web sites –Web servers

29. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics29 The World Wide Web  Every Web page has a unique address, or URL  HTML is the standard format for Web documents

30. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics30 Browsers  Web browsers help you access Web pages –Microsoft Internet Explorer –Netscape Navigator –Mozilla Firefox

31. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics31 Browsers  Common browser features

32. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics32 Browsers  Browsers fetch and display Web pages  HTML tags tell the browser how to display information on the Web page

33. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics33 Browsers To copy a passage of text from a Web page, highlight the text, click the Edit menu, then select Copy. Next, switch to your own document and use the Paste option.

34. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics34 Search Engines  Web site that helps you find information  Different search engines return different results

35. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics35 Search Engines  A query describes the information you want to find –Keywords describe the information you’re trying to find –Search operators describe the relationship between keywords

36. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics36 Search Engines  A topic directory is a list of topics and subtopics –Arranged in a hierarchy

37. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics37 Search Engines  Search forms help you enter complex queries

38. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics38 Search Engines  Some search engines accept natural language queries –“Where can I find a review of The Producers?”

39. 1 SECTION D Chapter 1: Computer, Internet, Web, and E-Mail Basics39 Section D: E-Mail Basics  E-mail Overview  Netiquette  Spam  E-mail Technology

40. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics40 E-Mail Overview  Any person with an e-mail account can send and receive e-mail messages

41. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics41 E-Mail Overview  Basic e-mail activities –Writing –Reading –Replying –Forwarding

42. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics42 E-Mail Overview  E-mail attachments are files that travel with an e-mail message –E-mail software converts e-mail attachments to MIME  HTML-compliant e-mail software  Additional e-mail features

43. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics43 E-Mail Overview

44. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics44 Netiquette  Internet etiquette –Meaningful subject –Use uppercase and lowercase letters –Check spelling –Be careful what you send –Be polite –Be cautious with sarcasm and humor

45. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics45 Netiquette –Use smileys and text messaging shorthand cautiously –Use the Bcc function for group mailings –Don’t send replies to all recipients –Don’t send huge attachments –Explain attachments –Stay alert for viruses –Notify recipients of viruses

46. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics46 Spam  Unwanted electronic junk mail –Don’t reply –Don’t link –Guard your e-mail address –Use spam filters Automatically routes advertisements and other junk mail to appropriate folder –Report spam –Change your e-mail address

47. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics47 E-mail Technology  E-mail systems carry and manipulate e-mail messages –E-mail servers –Based on store-and-forward technology  Three types of e-mail systems widely used today: –POP –IMAP –Web-based e-mail

48. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics48 E-mail Technology  Web-based e-mail accounts allow you to use a browser to access your e-mail messages

49. 1 Chapter 1: Computer, Internet, Web, and E-Mail Basics49 E-mail Technology  A POP server is a computer that stores your incoming messages until they can be transferred to your hard disk –E-mail client software –SMTP server

50. C HAPTER 1 C OMPLETE Computer, Internet, Web, and E-Mail Basics