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| There are 14 entries in the glossary. |
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| E-Commerce | Business conducted online, including buying and selling of goods, etc. |
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| E-Mail, email (Electronic Mail) | Messages sent through a computer network, such as the Internet.
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| Earbuds | Small speakers that you put in your ears to hear audio without
having those around you able to hear it. Earbuds are a type of headphone, but
they are small devices that fit into the ear rather then sit on the ear like
traditional headphones. There are many different types of earbuds from the hard
circular earbuds that come with iPods and most digital music players to soft
and pliable earbuds that can be custom fit to your ear. |
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| Electromagnetic Radiation | A stream of particles or electromagnetic waves emitted from certain electrical equipment. The long-term effect of these emissions on humans is a matter of speculation at this time. |
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| Emoticon | Also known as a smiley. An emoticon is a group of keyboard characters that are put together to create a picture. Smileys or emoticons often show the feelings or emotions of the sender. The most common emoticon is :-) indicating a happy or smiling person. If you don’t see the smile, simply look at the emoticon while leaning your head to the left.
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| Encryption |
means the data is scrambled so it
cannot be read by anyone who might infiltrate the transaction.
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| ENIAC (Electronic Numerical Integrator & | Considered by many to be the first useful computer. Completed in 1946 by John Eckert and John Mauchly.
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| Enter Key | A key on the computer keyboard that is marked with the word Enter or a large arrow. (There are often more than one enter keys on the keyboard.) Pressing the enter key will move you down a line in a word processing program. In many programs it completes your selection or your entering of data and sends that data to the computer. |
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| Ergonomics | The science, which studies the safety and comfort of machines and furniture for humans. Ergonomics plays an important part in the computer world, where sitting in a chair and performing repetitive movements can cause physical distress to the body. Preparing your workspace to meet ergonomic standards can improve your computing experience. Ergonomically designed furniture helps to avoid Repetitive Strain Injury, back and neck strain, and other computer-related physical problems. Simple adjustments in the way you work on the computer can also help. For instance, position your work surface at approximately elbow height when you are seated. In most cases, this means your mouse and keyboard are located below standard desk height. Also, adjust your chair so that your feet rest comfortably on the ground or use an adjustable footrest.
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| Escape Key | The key marked Esc. Usually positioned at the upper left of the keyboard. This key often allows you to return to the previous screen. |
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| Ethernet | An Ethernet card is a piece of computer hardware that enables communication between two or more computers on a network. Creating a network allows multiple computers to share resources. Previously networks were only used for business-related tasks. However, with the proliferation of home computers, it is becoming more and more common for home computers to be networked so they can share Internet connections, printers, files, and other resources. Also, a computer must be equipped with an Ethernet card in order to use a cable or DSL modem.
A computer can be purchased with an Ethernet card already installed. If you want to have a high-speed Internet connection like cable or DSL, you may want to purchase your next computer with a pre-installed network card.An Ethernet card can be added to any computer that has an open slot. If the computer has no open slots, an Ethernet adapter can be added via the USB port. Laptop computers can use an Ethernet USB adapter or a PCMCIA card Ethernet adapter.
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| Ethernet Card | A piece of computer hardware that enables communication between other computers on a network. See NIC for more information.
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| Expansion Slots | The slots inside the computer which accept computer boards. |
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| Extension |
The term extension means two completely different things depending on the Operating System.
For Mac users, an extension is a program that extends the system’s capabilities. Extensions include drivers and other enhancements. They reside in the Extension folder and are loaded into memory when the system starts. Mac extensions are the counterpart to the CONFIG.SYS file in the PC world.
For Windows, DOS and many operating systems, other than Apple, the extension is the part of the filename that follows a period. In DOS and before Windows 95, an extension could only have up to three digits. Although more current Windows operating systems like Windows 98/Me/XP can have longer extensions, the extension is usually kept to three characters as a matter of convention.
This extension indicates the type of information that is stored in the file. For instance, Word documents end in .doc, executable files end in .exe, and zipped files end in .zip.
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