Computer, Internet, Web, and E-Mail Basics CHAPTER 1 Computer, Internet, Web, and E-Mail Basics

Chapter Contents Section A: Computer Basics Section B: Internet Basics Section C: Web Basics Section D: E-Mail Basics Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

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

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

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

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

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

Personal Computer Systems Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

Application Software and Operating System Basics 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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

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

Internet Resources Web sites Search engines Downloads and uploads P2P file sharing CLICK TO START Chapter 1: Computer, Internet, Web, and E-Mail Basics

Internet Resources E-mail Bulletin boards Blogs Usenet Blogs Chat groups and instant messaging Chapter 1: Computer, Internet, Web, and E-Mail Basics

Internet Resources Internet telephony E-commerce Broadcasting Remote access and control Chapter 1: Computer, Internet, Web, and E-Mail Basics

Internet Connections Dial-up connection Cable Internet service 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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

User IDs and Passwords Choosing a secure password Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

Browsers Web browsers help you access Web pages Microsoft Internet Explorer Netscape Navigator Mozilla Firefox Chapter 1: Computer, Internet, Web, and E-Mail Basics

Browsers Common browser features Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

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. CLICK TO START Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

Search Engines A topic directory is a list of topics and subtopics Arranged in a hierarchy CLICK TO START Chapter 1: Computer, Internet, Web, and E-Mail Basics

Search Engines Search forms help you enter complex queries Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

Section D: E-Mail Basics E-mail Overview Netiquette Spam E-mail Technology Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

E-Mail Overview Basic e-mail activities Writing Reading Replying Forwarding Chapter 1: Computer, Internet, Web, and E-Mail Basics

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

E-Mail Overview Chapter 1: Computer, Internet, Web, and E-Mail Basics

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

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

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 Chapter 1: Computer, Internet, Web, and E-Mail Basics

Computer, Internet, Web, and E-Mail Basics CHAPTER 1 COMPLETE Computer, Internet, Web, and E-Mail Basics