Analyzing Technology Issues Unit 2.00 Computer Basics Objectives 2.03 & 2.04 PowerPoint Part B

Advantages and Uses of Telecommunications  Telecommunication involves electronically transferring data. Distance learning Distance learning Allows the user to take classes without being physically present.Allows the user to take classes without being physically present. Teleconferencing Teleconferencing Provides conferencing capabilities from several locations without leaving the office, reduces costs for time and travel.Provides conferencing capabilities from several locations without leaving the office, reduces costs for time and travel. 2.03

What is a browser?  The software program that you use to retrieve documents from the World Wide Web (WWW) and to display them in a readable format.  Examples: Internet Explorer Internet Explorer Netscape Communicator Netscape Communicator 2.03

Title bar  The bar on top of the window that contains the name of the document. 2.03

A horizontal menu that appears on top of a window. A horizontal menu that appears on top of a window. Provides a selection of options related to the Web page. Provides a selection of options related to the Web page. Menu Bar 2.03

 Icons for single-click access to most commonly used menu commands. Tool bar 2.03

 Contains the URL, or address, of the active Web page; also where you type the location for the Web page you want to visit. Address bar 2.03

 Connects you to address displayed in the Address bar. Document Window displays the active Web Page Go button 2.03

 Located at the bottom of the browser; shows the progress of Web page transactions. Status bar 2.03

 A small picture in the upper right corner of the browser; when animated, it means your browser is accessing data from a remote computer. Access Indicator 2.03

 Vertical and horizontal scroll bars; lets you scroll vertically and horizontally if the Web page is too long or too wide to fit within one screen. Scroll bars 2.03

What is ?  , or electronic mail, is similar to regular mail. You have a message, an address, and a carrier that figures out how to get it from one location to another.  is used to stay in touch with family and friends, conduct business, and send attachments such as text and image files. 2.03

Advantages and Uses of  Faster way to communicate and respond  Quick and easy way to send messages  Forward messages to other individuals  Send messages to multiple individuals  Include attachments such as pictures, audio files, and documents 2.03

Terminology  Inbox  Outbox  Sent Items  Deleted Items  Drafts  New Message  Send  Address Book 2.03

Electronic Mail Addresses The address consists of three parts: The user name of the individualThe user name of the individual symbol The user’s domain nameThe user’s domain name Example: 2.03

What is a search engine?  A tool that lets you find Web pages that match a particular word or phrase.  Examples of search engines: Altavista Altavista Google Google HotBot HotBot InfoSeek InfoSeek Excite Excite 2.03

Search Engine Terminology  Search expression  Index  Spiders or bots  Meta tags  Directory  Keyword search  Hyperlink 2.03

Background of the Internet  Early origin in 1960s  Closely tied to a networking project started by a governmental division called the Advanced Research Projects Agency.  Original name: ARPANET  Created so that scientists were able to share information on military and scientific research. 2.04

Features of the Internet  The World Wide Web Began in March 1989 when Tim Berners-Lee wrote a small computer program for his personal use. Began in March 1989 when Tim Berners-Lee wrote a small computer program for his personal use. 2.04

Web Protocols  HTML Hypertext Markup Language Hypertext Markup Language A series of tags that are integrated into text documents and describes how the text should be formatted when a Web browser displays it on the screen.A series of tags that are integrated into text documents and describes how the text should be formatted when a Web browser displays it on the screen.  HTTP Hypertext Transfer Protocol Hypertext Transfer Protocol Standard that defines how messages are formatted and transmitted.Standard that defines how messages are formatted and transmitted. 2.04

Chat Rooms  Using the computer to create real-time communication between yourself and another user or a group of users. Internet Relay Chat (IRC) Internet Relay Chat (IRC) A text-based chat developed by Jarkko Oikarinen in 1988.A text-based chat developed by Jarkko Oikarinen in One of the most widely used chat forums on the Internet today.One of the most widely used chat forums on the Internet today. 2.04

Chat Options  Web chat Incorporates graphics, audio and video Incorporates graphics, audio and video Hosted by search engines such as Yahoo, Snap, and Excite. Hosted by search engines such as Yahoo, Snap, and Excite.  Proprietary chat Requires that you download and install software from a company. Requires that you download and install software from a company. Examples are Microsoft Chat, AOL, and Prodigy. Examples are Microsoft Chat, AOL, and Prodigy.  Buddy lists You specify your list of friends and even tell when they are online. You specify your list of friends and even tell when they are online. Examples are ICQ and AOL Messenger Examples are ICQ and AOL Messenger 2.04

Mailing Lists  A group of people with a shared interest.  Their addresses are collected into a group, and this group is identified by a single name.  When a message is sent to the group, everyone on the list receives that message. 2.04

Newsgroups A discussion forum or a type of bulletin board.A discussion forum or a type of bulletin board. Each board is dedicated to discussion on a particular topic.Each board is dedicated to discussion on a particular topic. USENETUSENET Worldwide network of computers that facilitates the transmission of messages among the news servers.Worldwide network of computers that facilitates the transmission of messages among the news servers. 2.04

Research on the Internet Two basic tools used to find information:Two basic tools used to find information: Search enginesSearch engines Used to search for keywords.Used to search for keywords. Subject directoriesSubject directories Used to find specialized topics.Used to find specialized topics. 2.04

Types of Search Engines  Keyword Search Uses keywords to perform search Uses keywords to perform search  Multimedia Search Engines Used to find graphics, video clips, animation, and MP3 music files. Used to find graphics, video clips, animation, and MP3 music files.  Meta Search Engines Search several major search engines at one time. Search several major search engines at one time.  Subject Directories Organized by subject categories and displayed in a series of menus. Organized by subject categories and displayed in a series of menus. 2.04

Tools and Techniques  Phrase Searching  Search Engine Math  Boolean Operators  Wildcard Searching  Title Searching 2.04

Phrase Searching  A phrase is entered using double quotation marks and only matches those that appear adjacent to each other and in the order in which you specify. Example: “baseball cards” Example: “baseball cards” 2.04

Search Engine Math  Symbols used in formulas to filter out unwanted listings. Use the plus symbol (+) before words that must appear. Use the plus symbol (+) before words that must appear. Also known as an inclusion operator.Also known as an inclusion operator. Use the minus symbol (-) before words that you do not want to appear. Use the minus symbol (-) before words that you do not want to appear. Also known as an exclusion operator.Also known as an exclusion operator. 2.04

Boolean Operators  Boolean logic consists of three logical operators: AND AND NOT NOT OR OR 2.04

Wildcard Searching  The * symbol, called an asterisk, is considered a wildcard character.  Used if you don’t know the spelling of a word Example: N*Ryan to search for Nolan Ryan Example: N*Ryan to search for Nolan Ryan  Used to search plurals or variations of words. 2.04

Title Searching  Searching the title of a web page.  When a web page author creates a Web page, the Web page generally contains a HTML title. 2.04