Proxy or proxy server-A server that sits between a client application, such as a Web browser, and a real server. It intercepts all requests to the real server to see if it can fulfill the requests itself.
WAN-A computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more local-area networks (LANs) .
JAVA-A high-level programming language developed by Sun Microsystems. Java was originally called OAK, and was designed for handheld devices and set-top boxes.
LAN- The technology of using LAN data networks rather than traditional telephone lines and a PBX to carry voice traffic along with the data traffic that is typical of a LAN system.
VRML-Pronounced ver-mal, and short for Virtual Reality Modeling Language, VRML is a specification for displaying 3-dimensional objects on the World Wide Web. You can think of it as the 3-D equivalent of HTML.
HTML-Short for HyperText Markup Language, the authoring language used to create documents on the World Wide Web. HTML is similar to SGML, although it is not a strict subset.
DHTML-Refers to Web content that changes each time it is viewed. For example, the same URL could result in a different page depending on any number of parameters, such as: Geographic location of the reader Time of day Previous pages viewed by the reader Profile of the reader There are many technologies for producing dynamic HTML, including CGI scripts, Server-Side Includes (SSI), cookies, Java, JavaScript, and ActiveX.
Robot-A device that responds to sensory input
Mailbot- A software agent in a mail server that is typically used to send an automatic response to the sender. Mailbots are often used to send out-of-office replies, but can be made to send back any message.
shouting (netiquette)-Chatters and people who post on Usenet will often tell others to stop shouting. It's another way of saying, "TURN OFF YOUR CAPS LOCK." When someone is TYPING AN ENTIRE SENTENCE IN ALL CAPITAL LETTERS, that person is SHOUTING. It is not proper netiquette to TYPE IN ALL CAPS, especially in e-mail.
title bar (what information do you see)-A bar on top of a window. The title bar contains the name of the file or application
beta-A test for a computer product prior to commercial release. Beta testing is the last stage of testing, and normally can involve sending the product to beta test sites outside the company for real-world exposure or offering the product for a free trial download over the Internet.
megabyte-A bar on top of a window. The title bar contains the name of the file or application
DNS (Domain Name Server-Short for Domain Name System (or Service or Server), an Internet service that translates domain names into IP addresses. Because domain names are alphabetic, they're easier to remember.
Cache-Pronounced cash, a special high-speed storage mechanism. It can be either a reserved section of main memory or an independent high-speed storage device.
Sunday, October 10, 2010
Sunday, September 26, 2010
1.Acceptable Use Policy acceptable use policy (AUP; also sometimes acceptable usage policy or Fair Use Policy) is a set of rules applied by the owner/manager of a network, website or large computer system that restrict the ways in which the network site or system may be used.
2.Freeware Copyrighted software given away for free by the author. Although it is available for free, the author retains the copyright, which means that you cannot do anything with it that is not expressly allowed by the author.
3.Copyright The legal right granted to an author, composer, playwright, publisher, or distributor to exclusive publication, production, sale, or distribution of a literary, musical, dramatic, or artistic work.
4.Pop3 Short for Post Office Protocol, a protocol used to retrieve e-mail from a mail server. Most e-mail applications (sometimes called an e-mail client) use the POP protocol, although some can use the newer IMAP
5.Search Engine A program that searches documents for specified keywords and returns a list of the documents where the keywords were found. Although search engine is really a general class of programs, the term is often used to specifically describe systems like Google, Alta Vista and Excite that enable users to search for documents on the World Wide Web and USENET newsgroups.
6.Ping A utility to determine whether a specific IP address is accessible. It works by sending a packet to the specified address and waiting for a reply.
7.PDF Short for Portable Document Format, a file format developed by Adobe Systems. PDF captures formatting information from a variety of desktop publishing applications, making it possible to send formatted documents and have them appear on the recipient's monitor or printer as they were intended.
8.Shareware Software distributed on the basis of an honor system. Most shareware is delivered free of charge, but the author usually requests that you pay a small fee if you like the program and use it regularly.
9.Protocol An agreed-upon format for transmitting data between two devices. The protocol determines the following: the type of error checking to be used data compression method, if any how the sending device will indicate that it has finished sending a message how the receiving device will indicate that it has received a message
10.Commercial Software An agreed-upon format for transmitting data between two devices. The protocol determines the following: the type of error checking to be used data compression method, if any how the sending device will indicate that it has finished sending a message how the receiving device will indicate that it has received a message
11.Public Domain Refers to any program that is not copyrighted. Public-domain software is free and can be used without restrictions.
12.Dedicated connection Reserved for a specific use. In communications, a dedicated connection is a line reserved exclusively for one type of communication.
13.Dedicated Line In computer networks and telecommunications, a dedicated line is a communications cable or other facility dedicated to a specific application, in contrast with a shared resource such as the telephone network or the Internet.
14.Cookie A message given to a Web browser by a Web server. The browser stores the message in a text file
15.IMAP Short for Internet Message Access Protocol, a protocol for retrieving e-mail messages. The latest version, IMAP4, is similar to POP3 but supports some additional features.
Extra Credit:
2.Freeware Copyrighted software given away for free by the author. Although it is available for free, the author retains the copyright, which means that you cannot do anything with it that is not expressly allowed by the author.
3.Copyright The legal right granted to an author, composer, playwright, publisher, or distributor to exclusive publication, production, sale, or distribution of a literary, musical, dramatic, or artistic work.
4.Pop3 Short for Post Office Protocol, a protocol used to retrieve e-mail from a mail server. Most e-mail applications (sometimes called an e-mail client) use the POP protocol, although some can use the newer IMAP
5.Search Engine A program that searches documents for specified keywords and returns a list of the documents where the keywords were found. Although search engine is really a general class of programs, the term is often used to specifically describe systems like Google, Alta Vista and Excite that enable users to search for documents on the World Wide Web and USENET newsgroups.
6.Ping A utility to determine whether a specific IP address is accessible. It works by sending a packet to the specified address and waiting for a reply.
7.PDF Short for Portable Document Format, a file format developed by Adobe Systems. PDF captures formatting information from a variety of desktop publishing applications, making it possible to send formatted documents and have them appear on the recipient's monitor or printer as they were intended.
8.Shareware Software distributed on the basis of an honor system. Most shareware is delivered free of charge, but the author usually requests that you pay a small fee if you like the program and use it regularly.
9.Protocol An agreed-upon format for transmitting data between two devices. The protocol determines the following: the type of error checking to be used data compression method, if any how the sending device will indicate that it has finished sending a message how the receiving device will indicate that it has received a message
10.Commercial Software An agreed-upon format for transmitting data between two devices. The protocol determines the following: the type of error checking to be used data compression method, if any how the sending device will indicate that it has finished sending a message how the receiving device will indicate that it has received a message
11.Public Domain Refers to any program that is not copyrighted. Public-domain software is free and can be used without restrictions.
12.Dedicated connection Reserved for a specific use. In communications, a dedicated connection is a line reserved exclusively for one type of communication.
13.Dedicated Line In computer networks and telecommunications, a dedicated line is a communications cable or other facility dedicated to a specific application, in contrast with a shared resource such as the telephone network or the Internet.
14.Cookie A message given to a Web browser by a Web server. The browser stores the message in a text file
15.IMAP Short for Internet Message Access Protocol, a protocol for retrieving e-mail messages. The latest version, IMAP4, is similar to POP3 but supports some additional features.
Extra Credit:
- What happened in 1969 in Internet History? ARPANET was brought online
- packet A piece of a message transmitted over a packet-switching network.
- 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.
- 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.
- newsgroup Same as forum, an on-line discussion group. On the Internet, there are literally thousands of newsgroups covering every conceivable interest.
- 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.
- Network A group of two or more computer systems linked together. There are many types of computer networks,
- 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.
- 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.
- 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.
- 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.
- 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.
- 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:
For example,
- 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.
- 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.
- 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.
1. IP Address An identifier for a computer or device on a TCP/IP network. Networks using the TCP/IP protocol route messages based on the IP address of the destination. The format of an IP address is a 32-bit numeric address written as four numbers separated by periods.
2. Usenet A worldwide bulletin board system that can be accessed through the Internetor through many online services. The USENET contains more than 14,000forums, called newsgroups, that cover every imaginable interest group. It is used daily by millions of people around the world.
3. Account An established relationship between a user and a computer, network or information service. User accounts are assigned a username. Passwords are optional for computers and networks, but mandatory for registrations and subscriptions to online services.
4. Host (1) A computer system that is accessed by a user working at a remotelocation. Typically, the term is used when there are two computer systems connected by modems and telephone lines. The system that contains thedata is called the host, while the computer at which the user sits is called the remote terminal.
5. FTP Short for File Transfer Protocol, the protocol for exchanging files over theInternet. FTP works in the same way as HTTP for transferring Web pages from a server to a user's browser and SMTP for transferring electronic mail across the Internet in that, like these technologies, FTP uses the Internet's TCP/IPprotocols to enable data transfer.
6. ZIP, EXE, CAB file extensions
8. HTML Short for HyperText Markup Language, the authoring language used to createdocuments on the World Wide Web.
9. Link In hypertext systems, such as the World Wide Web, a link is a reference to another document. Such links are sometimes called hot links because they take you to other document when you click on them.
10. WYSIWYG Short for what you see is what you get. A WYSIWYG application is one that enables you to see on the display screenexactly what will appear when the document is printed. This differs, for example, from word processors that are incapable of displaying different fontsand graphics on the display screen even though the formatting codes have been inserted into the file. WYSIWYG is especially popular for desktop publishing.
11. TXT, DOC, XLS file extensions
12. Bandwidth The amount of data that can be transmitted in a fixed amount of time. Fordigital devices, the bandwidth is usually expressed in bits per second(bps) orbytes per second. For analog devices, the bandwidth is expressed in cycles per second, or Hertz (Hz).
2. Usenet A worldwide bulletin board system that can be accessed through the Internetor through many online services. The USENET contains more than 14,000forums, called newsgroups, that cover every imaginable interest group. It is used daily by millions of people around the world.
3. Account An established relationship between a user and a computer, network or information service. User accounts are assigned a username. Passwords are optional for computers and networks, but mandatory for registrations and subscriptions to online services.
4. Host (1) A computer system that is accessed by a user working at a remotelocation. Typically, the term is used when there are two computer systems connected by modems and telephone lines. The system that contains thedata is called the host, while the computer at which the user sits is called the remote terminal.
(2) A computer that is connected to a TCP/IP network, including the Internet. Each host has a unique IP address.
5. FTP Short for File Transfer Protocol, the protocol for exchanging files over theInternet. FTP works in the same way as HTTP for transferring Web pages from a server to a user's browser and SMTP for transferring electronic mail across the Internet in that, like these technologies, FTP uses the Internet's TCP/IPprotocols to enable data transfer.
6. ZIP, EXE, CAB file extensions
8. HTML Short for HyperText Markup Language, the authoring language used to createdocuments on the World Wide Web.
9. Link In hypertext systems, such as the World Wide Web, a link is a reference to another document. Such links are sometimes called hot links because they take you to other document when you click on them.
10. WYSIWYG Short for what you see is what you get. A WYSIWYG application is one that enables you to see on the display screenexactly what will appear when the document is printed. This differs, for example, from word processors that are incapable of displaying different fontsand graphics on the display screen even though the formatting codes have been inserted into the file. WYSIWYG is especially popular for desktop publishing.
11. TXT, DOC, XLS file extensions
12. Bandwidth The amount of data that can be transmitted in a fixed amount of time. Fordigital devices, the bandwidth is usually expressed in bits per second(bps) orbytes per second. For analog devices, the bandwidth is expressed in cycles per second, or Hertz (Hz).
13. DNS server The amount of data that can be transmitted in a fixed amount of time. Fordigital devices, the bandwidth is usually expressed in bits per second(bps) orbytes per second. For analog devices, the bandwidth is expressed in cycles per second, or Hertz (Hz).
14. Client The client part of a client-server architecture. Typically, a client is an application that runs on a personal computer or workstation and relies on a server to perform some operations. For example, an e-mail client is an application that enables you to send and receive e-mail.
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