Summary week 3 slide 45- 60

- Virtual Reality
o Use of computers to simulate real or imagined environment

- Plug-ins
o Programs that extend the capability of a browser

- Web publishing
o Development and maintenance of Web pages

- E-commerce (electronic commerce)
o Business transaction that occurs over the Internet

- E-mail (electronic mail)
o The transmission of messages and files via a computer network

- E-mail address
o Unique name that consists of a user name and domain name that identifies the user

- HOW DOES AN E-MAIL TRAVEL:
o Step 1. Using e-mail software, you create and send message
o Step 2. Your software contacts software on your service provider’s outgoing mail server
o Step 3. Software on outgoing mail server determines best route for data and sends message, which travels along Internet routers to recipient’s incoming mail server
o Step 4. When recipient uses e-mail software to check for e-mail messages, the message transfers from incoming mail server to recipient’s computer

- IM (instant message)
o A real-time Internet communications service that notifies you when one or more people are online and allows you to exchange messages or files

- Chat
o Real-time typed conversation that takes place on a computer
o Chat room is location on server that permits users to discuss topics of interest

- VoIP (voice over IP)
o Enables users to speak to other users over the Internet

Summary week 3 slide 35- 45

- The guidelines for evaluating the value of a Web site:
o Affiliation
o Audience
o Authority
o Content
o Currency
o Design
o Objectivity

- Multimedia:
o Application combining text with other media elements
 Graphics
 Animation
 Audio
 Video
 Virtual reality
 Plug-ins

- Graphics formats are used on the Web:
o BMP
o GIF
o JPEG
o PNG
o TIFF

- Thumbnail:
o Small version of a larger graphic—used to improve Web page display time

- Animation:
o Appearance of motion created by displaying a series of still images in sequence

- Audio:
o Music, speech, or any other sound
o Individual compressed sound files that you download from the Web to your computer

- Streaming audio:
o The process of transferring audio in a continuous and even flow
o Enables you to listen to music as it downloads to your computer

- Video:
o Consists of full-motion images, most with sound, that are played back at various speeds
o MPEG (Moving Pictures Experts Group) is popular video compression standard