Words H-K

 

*   Hacker: A person who delights in having an intimate understanding of the internal workings of a system, computers and computer networks in particular.

*  Header: The portion of a packet, preceding the actual data, containing source and destination addresses and error-checking fields. Also the top of an E-mail message that contains the TO, FROM, SUBJECT, etc. sections of the message. Headers should not be confused with word processing headers and footers. Header is also one of the elements within a Web page that is located at the top of the page to introduce the reader of the page to its contentand use.

*  Helper Applications: See Viewer Applications.

*  Hits: A term used to describe a match of a search term.

*  Home: The term home is used when describing a starting point for Internet exploration. It refers to the first menu a user sees when a Gopher client is started or the first page a user sees when WWW Web browser is started.

*  Host: A computer that allows a user to communicate with other host computers on a network.

*   HTML: See Hypertext Markup Language.

*   HTTP: See Hypertext Transfer Protcol.

*  Hyperlink: Hyperlinks are text and images that are used within a Web page as links to other Web pages and Internet resources. Clicking on one of these hyperlinks will load another Web page into the Web browser display area, or download the media type associated with the link. In some cases, a hyperlinked image, when clicked on, will load a larger version of the image. In other cases, clicking on different areas of a single image may return different results. The use of hyperlinked text and images allow you to progress, or branch, to other Web pages of interest in a non-linear manner.

*  Hyperlinked Text: See Hypertext.

*  Hypertext: A term coined by computer author Ted Nelson around 1965. Unlike sequential text (that found in a typical book or newspaper article), hypertext contains links to other text, sound, video, animation, and graphic images.

 

*   Hypertext Markup Language (HTML): The code used to create a page of information seen by a Web browser.

*  Hypertext Transfer Protocol (HTTP): The protocol used to transfer HTML pages across the Internet.

*  IMAP: See Internet Mail Access Protocol.

*  IMHO: Acronym for "in my humble opinion," this usually accompanies a statement that may bring about personal offense or strong disagreement within an E-mail message, mailing list posting, or Newsgroup posting.

*  Information Superhighway: A term generally used to describe a future, seamless web of communications networks, computers, databases, and consumer electronics that will place vast amounts of information at the fingertips of residential and business consumers. Often erroneously used as a synonym to describe the Internet.

*  Integrated Systems Digital Network (ISDN): See ISDN.

 

*   Internet: The world's largest computer network, connecting many campus, state, regional and national networks together. The Internet is sometimes referred to as a "network of networks".

*  Internet Explorer: A Web browser created by the Microsoft corporation. Provides many of the same functions and features of Netscape Navigator.

*  Internet Mail Access Protocol (IMAP): A protocol allowing a client to access and manipulate electronic mail messages on a server. It permits mani/pulation of remote message folders (mailboxes), in a way that is functionally equivalent to local mailboxes. IMAP does not specify a method for posting messages.

*   Internet Number: The dotted quad (see Dotted Quad) address used to specify a certain computer system. Each computer on the Internet is assigned a unique IP number. A resolver is used to translate between hostnames and Internet addresses.

*  Internet Protocol (IP): A system used to connect the various computers within the Internet. Every computer connected to the Internet has its own IP number. An IP number is actually four different numbers, all separated by periods, similar to:

127.0.0.1

*  IP numbers allow a packet or unit of data to be sent through several networks before it gets to its final destination.

*  Internet Service Provider (ISP): Sometimes also referred to as an Internet "Access" Provider, an ISP is to the merging Internet industry as local cable television providers are to home television access. ISPs are your "launchpad" or "front door" to the Internet. ISP accounts are generally paid for on a monthly basis, but can also be purchased quarterly or annually (individual companies have very different policies). Average cost for an ISP is between $20 and $60 per month. When seeking an ISP, you should ask the following questions: What is the average number of users per modem? Does the standard account include Newsgroups? How many technical support personnel do they employ? What is the maximum speed of a dialup (modem) or direct connection to that particular ISP?

*    Internet Society: The Internet Society (ISOC) is a non-government, international organization for global cooperation and coordination for the Internet. The Society's individual and organizational members have a common goal of maintaining the viability and global scaling of the Internet. ISOC members are the companies, government agencies, and foundations that created the Internet, as well as new entrepreneurial organizations which make ongoing contributions.

*   InterNIC: The Internet Network Information Center, based in Virginia. The InterNIC is responsible for approving and granting Internet domain names to organizations. Domain name registrations. Domain name registration with InterNIC is free.

*  IP Number: See Internet Number.

*   Internet Relay Chat: Also known as IRC, it is a multi-user live chat protocol. There are a number of major IRC servers around the world which are linked to each other. Anyone can create a "channel" and anything that anyone types in a given channel is seen by all others in the channel. Private channels can (and are) created for multi-person "conference calls".

*    ISDN: Integrated Systems Digital Network. A type of direct connection to the Internet through a high speed telephone line. ISDN speeds range from 64kbps to 128kbps.

*   ISOC: See Internet Society.

*   JAVA: A programming language used to create independent programs or "applets" - small applications that can be downloaded from the Web. The programs and applets are platform-independent, meaning users of Windows, Unix, Macintosh, etc. can all use the same applet.

*   Java Script: A scripting language that can add further functionality to Web pages by being inserted into HTML documents. Completely separate from the JAVA programming language.

 

 

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