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Computer Basics 面试题与答案

问题 26. What is CD-ROM?

Compact Disc - Read Only Memory. A CD-ROM is any compact disc which contains computer data. These discs can store huge amounts of data (up to 640 megabytes). If there is a large amount of data on a CD-ROM, then it is usually impractical to copy the data on to the hard disk; in this case, you must insert the disc whenever you want to use the data. The ROM simply means that you can not save information onto these discs. CD-ROM may also refer to the drive used to read these discs.

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问题 27. What is Check box?

A dialog box, usually square, that records an on or off value, when we click on this box for on it shows as right tick mark.

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问题 28. What is Clipboard?

A temporary storage location in Windows. The clipboard will store one piece of information at a time when it is manually added to the clipboard or is copied there.

Ex: While copy any text firstly it is saved in clipboard.

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问题 29. What is Collapsing?

Hiding an additional level of directories beneath the selected directory in My Computer or Windows Explorer.

Usually it looks like (+) and (-) or (->). When we click on (+) directory opens/expands, when we click on (-) directory closes/collapse.

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问题 30. What is Command?

An option form an application's menu, or a command typed in by the user, such as at a DOS prompt or at the Run dialog box in Windows.

We open command prompt for writing command: Start -> Programs -> Accessories -> Command Prompt

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