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.
Is it helpful?
Add CommentView Comments
Ques 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.
Is it helpful?
Add CommentView Comments
Ques 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.
Is it helpful?
Add CommentView Comments
Ques 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.
Is it helpful?
Add CommentView Comments
Ques 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