Vocabulary MP2 Set #3 1) active window

An active window is the currently focused window in the current window manager or explorer. Different window managers indicate the currently-active window in different ways and allow the user to switch between windows in different ways.

40) wireless keyboard

A wireless keyboard is exactly the same as a normal computer keyboard except for one major difference: Wireless keyboards transfer typing data to the computer via infrared beams. A beam of information is sent from the keyboard, as you type, to a receiver, which is plugged into the computer. This allows for a cordless experience, which eliminates the potential for another tangled cord behind your computer. It is also common for many consumers to purchase a wireless mouse to compliment a wireless keyboard. This being the case, two wires are now eliminated from the clutter behind your desk.

Source: http://www.wisegeek.com/what-is-a-wireless-keyboard.htm

39) warranty

a written assurance that some product or service will be provided or will meet certain specifications.
Source: wordnetweb.princeton.edu/perl/webwn

38) useful life

refers to the archival quality of the storage medium. It usually refers to the period of time during which there is no unacceptable loss of information stored on the medium; and during which the storage medium remains usable for its intended purpose.

37) uninterruptible power supply

An uninterruptible power supply, also uninterruptible power source, UPS or battery backup, is an electrical apparatus that provides emergency power to a load when the input power source, typically the utility mains, fails.

Source: en.wikipedia.org/wiki/Uninterruptible_power_supply

Do Now 4/6/11

it is a good tool  to have a header and footers because they are useful for keeping documents intact. 

36) troubleshooting

Troubleshooting is a form of problem solving most often applied to repair of failed products or processes. It is a logical, systematic search for the source of a problem so that it can be solved, and so the product or process can be made operational again.
Source: http://en.wikipedia.org/wiki/Troubleshooting