1. What happened in 1969 in Internet History? ARPANET was brought online

2. packet A piece of a message transmitted over a packet-switching network.

3. bookmark To mark a document or a specific place in a document for later retrieval. Nearly all Web browsers support a bookmarking feature that lets you save the address (URL) of a Web page so that you can easily re-visit the page at a later time.

4. Look up the following filename extensions:

.jpgShort for Joint Photographic Experts Group, and pronounced jay-peg. JPEG is a lossy compression technique for color images. Although it can reduce filessizes to about 5% of their normal size, some detail is lost in the compression.

.gifPronounced jiff or giff (hard g) stands for graphics interchange format, a bit-mapped graphics file format used by the World Wide Web, CompuServe and many BBSs. GIF supports color and various resolutions.

.pngShort for Portable Network Graphics, and pronounced ping, a new bit-mapped graphics format similar to GIF. In fact, PNG was approved as a standard by the World Wide Web consortium to replace GIF because GIF uses a patented data compression algorithm called LZW.

5. newsgroup Same as forum, an on-line discussion group. On the Internet, there are literally thousands of newsgroups covering every conceivable interest.

6. Consumer Report.org Consumer Reports is an American magazine and web page published monthly by Consumers Union. It publishes reviews and comparisons of consumer products and services based on reporting and results from its in-house testing laboratory. It also publishes cleaning and general buying guides.

7. Network A group of two or more computer systems linked together. There are many types of computer networks,

8. bitmapA representation, consisting of rows and columns of dots, of a graphicsimage in computer memory. The value of each dot (whether it is filled in or not) is stored in one or more bits of data. For simple monochrome images, one bit is sufficient to represent each dot, but for colors and shades of gray, each dot requires more than one bit of data. The more bits used to represent a dot, the more colors and shades of gray that can be represented.

9. hyperlink An element in an electronic document that links to another place in the same document or to an entirely different document. Typically, you click on the hyperlink to follow the link. Hyperlinks are the most essential ingredient of allhypertext systems, including the World Wide Web.

10. hypermedia An extension to hypertext that supports linking graphics, sound, and videoelements in addition to text elements. The World Wide Web is a partial hypermedia system since is supports graphical hyperlinks and links to sound and video files.

11. hypertext An extension to hypertext that supports linking graphics, sound, and videoelements in addition to text elements. The World Wide Web is a partial hypermedia system since is supports graphical hyperlinks and links to sound and video files.

12. Router A device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP’s network.

13. e-mail address A name that identifies an electronic post office box on a network where e-mailcan be sent. Different types of networks have different formats for e-mailaddresses. On the Internet, all e-mail addresses have the form:
    @<domain name >

    For example,

    webmaster@sandybay.com

14. button In graphical user interfaces, a button is a small outlined area in a dialog box that you can click to select an option or command.

15. dial-up Refers to connecting a device to a network via a modem and a public telephone network. Dial-up access is really just like a phone connection, except that the parties at the two ends are computer devices rather than people.

16. WWW The WWW prefix (short for World Wide Web) that precedes URL addresses is an indication that the Web address exists on the vast network of the World Wide Web. Sometimes in a URL the "WWW" is followed by a number, such as "WWW1" or "WWW2." The number that follows the "WWW" indicates that the data being retrieved by the Web browser is gathering the information from a different Web server than the one that serves the typical "WWW" address.