Assignment 7
Terminology

1. Go to http://www.w3.org and find an answer to this question: What is the W3C World Wide Web Consortium.
   W3C(World Wide Web Consortium) is an international organization that promotes a better Web environment by developing Web standards and guidelines. They seek compatibility of any hardware and software and pursue a long-term growth of the Web.
   
   
2. Find and write simple explanations for the following terms.
   
   a. Cyberspace
   The term is originated by William Gibson in his novel "Neuromancer". It refers to the online world, the imaginary place where electronic information exists and people communicate with one another through computer networks.
   
   b. download
   Downloading is the process of moving data to a smaller computer system from a larger one.
   
   c. upload
   Uploading is the opposite of downloading. It refers to transferring data from the local computer to a larger computer system.
   
   d. GIF
   GIF stands for ¡°Graphics Interchange Format¡±. It is a common graphic file format, often used on the World Wide Web to store graphic images. It is not recommended when using color photos since it provides a limited range or colors.
   
   e. JPG
   JPG is the abbreviation of ¡°Joint Photographic Group¡±. It is also commonly used as a format for storing photographic and color-rich images. One might lose some details while compressing the image.
   
   f. PNG
   PNG stands for ¡°Portable Network Graphics¡±. It is another type of a graphic format that is approved as a standard by W3C so that any software can work with PNG images.
   
   g. login (as a noun and a verb)
   As a noun, it refers to an account name used for getting access to one¡¯s computer. It also refers to the act of accessing a computer system by entering a username and password.
   
   h. mailing lists (listserv and majordomo)
   It refers to a list of e-mail addresses of people with similar interests, allowing them to share messages and discuss them together. The message one send to the main address is automatically copied and sent to all the subscribers¡¯ e-mails.
   
   i. newsgroups
   
   
   • What are they?
     It is an online discussion group consisting of related articles about many different subjects. It¡¯s like a worldwide bulletin board where you can post notes on certain topics, and share ideas with other users around the world.
     
     
   • How are newsgroups different from mailing lists?
     Newsgroups basically use web board as a public forum so that one can receive members¡¯ posts through an internet site, whereas mailing lists distribute each post via e-mail on a daily basis.
   
   
   j. packet switching
   It is a process of breaking up data into chunks called packets. When the chunks of data arrive its destination, it¡¯s put together again. This allows packets from many different locations to be on the same lines and directed to different routes.
   
   k. router
   It is a device that connects two or more networks. Located at gateways, it functions as a sorter and interpreter as it receives packets, decides their routes, and passes them on.
   
   l. cookie
   A cookie is a small file automatically sent to one¡¯s PC from a Web server. Your personal information such as your username, password, or preferences is stored in the cookie; thus it provides an easy access to the server and makes the Web pages more personalized for each customer.
   
   m. IP address
   It is an address code expressed in numbers to identify the location of every computer or network on the Internet. It¡¯s format, for example, is like this: 1.160.10.240. But it is shown as a domain name for users.
   
   n. Domain name
   It is the unique name that identifies IP addresses. It includes several parts separated by dots. For example, ewha.ac.kr is the domain name belonging to the Ewha Womans University computer system.
   
   o. head or header of an HTML document
   A header of HTML document is a part that goes before the main file content, describing the length of the content, the file size, the date the file was made, or other characteristics of the document.
   
   p. nesting
   Nesting is to place something within something else of the same kind. In computer programming, it refers to programming commands that are inside of another command, combining different structures and application. For instance, a table within a table is a nested table.
   
   q. PDF document
   PDF(Portable Document Format) is a file format created by Adobe Acrobat Reader. One can view and print the document in any applications since it appears the same regardless of the types of program.
   
   r.
   
   • query
     Query is a question or a request for information, data, or other responses in a search engine.
     
     
   • query box
     Query box is a type of dialog box where you can reply to a certain question. In search engines, you can get information by entering a keyword in it.

Home | About Me | Assignments | E mail me