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Essiential Guide To Computers
COM14-COM23
36
Business
10th Grade
09/13/2007

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Term
CD-ROM:
Definition
(compact disc read-only memory) is a type of optical disc that users can read but not write on (record) or erase- hence the name read-only. A typical CD-ROM holds from 650 MB to 1 GB of data, instructions, and information.
Term
CD-R:
Definition
(compact disc-recordable) is an optical disc onto which you can record your own items such as text, graphics, and audio. With CD-R, you can write on part of the disc at one time and another part at a later time.
Term
CD-RW:
Definition
(compact disk-rewriteable) is an erasable optical disk you can write on multiple times. A CD-RW overcomes the major disadvantage of CD-R disks, which is that you can write on them only once.
Term
DVD-ROM:
Definition
(digital versatile disk-read-only memory) is a very high-capacity optical disc capable of storing from 4.7 GB to 17 GB----- more than enough to hold a telephone book containing every resident in the United States.
Term
Tape:
Definition
is a magnetically coated ribbon of plastic housed in a tape cartridge capable of storing large amounts of data and information at a low cost.
Term
Miniature Mobile Storage Media:
Definition
are rewriteable media usually in the form of flash memory card, USB flash drive, or a smart card.
Term
Flash Memory Cards:
Definition
are solid-state media, which means they consist entirely of electronics (chips, wires, etc.) and contain no moving parts. Common types of flash memory include compact flash (CF), Secure Digital (SD), xD Picture Card, and Memory Stick.
Term
USB Flash Drive:
Definition
sometimes called a pen drive or thumb drive, is a flash memory storage device that plugs into a USB port on a computer or mobile device. Capacity typically ranges from 32 MB to 64 GB.
Term
Smart Card:
Definition
which is similar in size to a credit card or ATM card, stores data on a thin microprocessor embedded in the card.
Term
Communications Device:
Definition
is a hardware component that enables a computer to send (transmit) and receive data, instructions, and information to and from one or more computers. A widely used communications device is the telephone or cable modem.
Term
Computer Software:
Definition
is the key to productive use of computers
Term
System Software:
Definition
consists of programs to control the operations of computer equipment.
Term
Operating System:
Definition
tells the computer how to perform the functions of loading, storing, and executing an application program and how to transfer data.
Term
Applications Software:
Definition
consists of programs designed to make users more productive and/or assist them with personal tasks.
Term
Word Processing Software:
Definition
is used to create, edit, format, and print documents. A key advantage of word processing software is that users easily can make changes in documents, such as correcting spelling; changing margins; and adding, deleting or relocating entire paragraphs.
Term
Electronic Spreadsheet Software:
Definition
allows the user to add, subtract, and perform user-defined calculations on rows and columns of numbers. These numbers can be changed and the spreadsheet quickly recalculates the new results.
Term
Database Software:
Definition
allows the user to enter, retrieve, and update data in an organized and efficient manner.
Term
Presentation Graphics Software:
Definition
allows the user to create sides for use in a presentation to a group. Using special projection devices, the slides are projected directly from the computer.
Term
Network:
Definition
is a collection of computers and devices connected together, often wirelessly, via communications devices and transmission media.
Term
Online:
Definition
when a computer connects to a network.
Term
Local Area Network(LAN):
Definition
is a network that connects computers in a limited geographic area, such as a school computer laboratory, office, or group of buildings.
Term
Wide Area Network:
Definition
is a network that covers a large geographical area, such as one that connects the district offices of a national corporation.
Term
Internet
Definition
is the world's largest network. Is also a worldwide collection of network that connects millions of business, government agencies, educational institutions, and individuals.
Term
Internet Service Provider(ISP):
Definition
is an organization, such as a cable company or telephone company, that supplies connections to the internet for a monthly fee. For example, EarthLink, and AT&T WorldNet are examples of national ISPs
Term
Online Service Provider(OSP):
Definition
provides access to the internet, but it also provides a variety of other specialized content and services such as news, weather, financial data, e-mail, games, and more.
Term
Wireless Internet Service Provider(WISP):
Definition
is a company that provides wireless Internet access to computers and mobile devices such as smart phones and PDAs. Boingo Wireless and Cingular Wireless are examples of WISPs.
Term
World Wide Web:
Definition
also called the Web, which contains billions of documents called Web pages. This is also one of the more popular segments of the Internet.
Term
Web Page:
Definition
can contain text, graphics, audio, and video, and has built-in connections, or links, to other Web documents.
Term
Web Site:
Definition
is a related collection of Web pages.
Term
Web Browser:
Definition
is a visitors to a web site access and view Web pages using a software program.
Term
Uniform Resource Locator(URL):
Definition
is a web page that has a unique address.
Term
Hypertext Transfer Protocol:
Definition
the communications standard used to transfer pages on the web.
Term
Web Server:
Definition
is a computer that delivers (serves) requested web pages.
Term
E- Commerce:
Definition
is when you conduct business activities online, you are participating in electronic commerce. There are three types of commerce, business to consumer, consumer to consumer, business to business.
Term
Business To Consumer(B2C):
Definition
invoves the sale of goods to the general public.
Term
Consumer To Consumer(C2C):
Definition
involves one consumer selling directly to another.
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