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Internet Basics. The World Wide Web. Web Basics. The World Wide Web. The Web is a collection of files organized as a giant hypertext Many of these files produce documents called Web pages Web site - location on a computer somewhere on the Internet that stores a collection of Web pages - PowerPoint PPT Presentation
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Internet Basics
The World Wide Web
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Web Basics
The World Wide Web
• The Web is a collection of files organized as a giant hypertext
• Many of these files produce documents called Web pages
• Web site - location on a computer somewhere on the Internet that stores a collection of Web pages– http://www.yahoo.com
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Web Basics
What is the Web?
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Web Basics
What is the Web (World Wide Web)?
• Web server - computer with special software for transmitting Web pages over the Internet– Domain names prefixed with www
• Home page - identifies the site and contains links to other pages at the site
• Web sites are composed of a series of Web pages– Each page stored as a file– Referred to by a unique URL
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Web Basics
What is the Web?
• URL (Uniform Resource Locator) - an Internet address of a document on a computer– Begins with http://
• HTTP stands for Hypertext Transfer Protocol - the protocol that allows Web browsers to communicate with Web servers
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Web Basics
Browsers
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Web Basics
What is a browser?
• Web browsers provide Internet users with all-purpose client software for accessing many types of servers– Internet Explorer– Netscape– Mozilla
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Web Basics
Exactly what does a browser do?
• A browser fetches and displays Web pages
• The server sends your computer data that’s stored
• The data consists of information that you want to see and HTML tags, codes that tell your browser how to display it
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Web Basics
Exactly what does a browser do?
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Web Basics
• URL box• Navigation buttons• Home button• Print• Save
• Copy• History List• Favorites or
Bookmarks• Stop button• Find
Which features are common to most browsers?
Web Basics
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Web Basics
Which features are common to most browsers?
To highlight a passage of text, hold down the mouse button while dragging the I-beam pointer from the beginning of the passage to the end of it.
Click to start
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Web Basics
What is a search engine?
• Search engine – popularly refers to a Web site that provides a variety of tools to help you find information– A software program that helps you locate web
pages on certain topics– Enter keywords or descriptions– AltaVista, Google, Yahoo, etc.
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Web Basics
Search Engines
The search enginedisplays the totalnumber of relevantpages.
Underlined links make it easy toquickly connect to any of the Webpages in the list.
The search was forrailroad cars.
Search results are typicallyarranged in order ofrelevancy, so that the mostpromising Web pagesshould be at the top of thelist. A brief description of thepage helps you determinewhether you want to view it.
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Web Basics
Exactly what is a query?
• Describes information you want to find• You can enter more than one search term.
Separate each term with a space or search operator– A search operator is a word or symbol that describes a
relationship between keywords and thereby helps you create a more focused query
• AND, OR, and NOT• Quotation marks• NEAR• Wildcards• Field Searches
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Web Basics
• A topic directory is a list of topics and subtopics
How do I use a topic directory?
Click to start
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Web Basics
How do I use a form to find information?
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Web Basics
Can’t I just ask a single question and get an answer?
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E-mail Basics
E-mail Overview
Messagebody
Attachment
Subject line
Recipients’ names or e-mail addresses
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E-mail Basics
Who can use e-mail?
• Any person with an e-mail account
• An e-mail account provides the rights to a storage area or “mailbox”
• Each mailbox has a unique address– [email protected]
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E-mail Basics
Exactly what is an e-mail message?
• An e-mail message is a document that is composed on a computer and remains in digital form so that it can be transmitted to another computer
• Every message includes a message header and the body of the message, usually displayed in a form
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E-mail Basics
What can I do with basic e-mail?
• Basic e-mail activities– Writing– Reading– Replying To– Forwarding
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E-mail Basics
What can I do with basic e-mail?
ReplyOriginalmessage
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E-mail Basics
How does forwarding an e-mail work?
• After you receive a message, you can use the Forward feature to pass it on to other people
• When you initiate the forward process, the original message is copied and then you can enter the address of the person to receive the message, and even add a note about why you are passing it along
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E-mail Basics
What’s an e-mail attachment?
• An e-mail attachment is a file that travels with a message to the recipient
• A conversion process called MIME provides a way of disguising the file as plain ASCII text that can travel over the Internet
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E-mail Basics
How does HTML relate to e-mail?
• Most e-mail software allows you to create messages in HTML
• This allows your messages to contain fancy formatting and multimedia aspects
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E-mail Basics
– Address book– Group e-mails– Carbon copy– Assign a priority to
your e-mail– Find a message– Enlarge text size
– Sort messages– Refuse messages– Automate replies– Automatic fetching– Spell checking
What other advanced e-mail features are available?
E-mail Basics
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E-mail Basics
Is e-mail different than other types of communications?
• E-mail is similar to old-fashioned letters
• E-mail is faster than post office, but lacks immediacy of a telephone conversation
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E-mail Basics
Is e-mail different than other types of communication?
• Netiquette is online jargon for “Internet etiquette. It is a series of customs or guidelines for maintaining civilized and effective communications on-line
Notify recipients of virusesStay alert for viruses
Explain all attachmentsDon’t send huge attachments
Don’t send replies to “all recipients”Use the Bcc function for group mailings
Use smileys cautiously : - )Be cautious with sarcasm and humor
Be conciseBe polite
Be careful what you sendCheck spelling
Use uppercase and lowercase lettersPut a meaningful title on the subject line
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E-mail Basics
E-mail Technology: What is an e-mail system?
• An e-mail system is the equipment and software that carries and manipulates e-mail messages
• E-mail servers sort, store, and route email
• Store-and-forward technology – a communications method in which data that cannot be sent directly to its destination will be temporarily stored until transmission is possible
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E-mail Basics
E-mail Technology: What is an e-mail system? (Continued)
• The possible transmission methods are:– POP– SMTP– Web-based e-mail
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E-mail Basics
How do I use Web-based e-mail?
E-mail Basics
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E-mail Basics
How do POP and IMAP work?
• POP server – a computer that stores your incoming messages until they can be transferred to your hard disk
• Using POP requires e-mail client software
• Outgoing mail is routed by an SMTP server
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E-mail Basics
How do POP and SMTP work?
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E-mail Basics
Does e-mail client software work only for offline e-mail tasks?
• You can use it offline and on-line
• It can automatically send messages out over the Internet when online
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E-mail Basics
Is POP mail better than Web-based e-mail?
• Requires e-mail client software
• Transfers e-mail to your computer
• Consider the following when deciding:– Control– Security– Travel
