Ques 46. How do we change the screen resolution of our computer?
Go to Start -> Control Panel -> Display Settings and adjust the resolution there. Or
Right click on an empty place on the desktop -> choose Properties from the menu and then -> Settings.
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Ques 47. What is DVD and DVD-ROM?
DVD is a new technology very similar to compact discs. A DVD looks just like an ordinary compact disc, however a DVD can hold up to 25 times as much as a CD!! That's 18 gigabytes!! This gives enough room to hold an entire movie at twice the quality of VHS with theater quality sound (better than CD-quality). Since it is on a disc, you can jump to any scene instantly, and you never need to rewind.
A DVD-ROM is a DVD disc for a computer. This means a multimedia encyclopedia can have even more multimedia with much better quality (on DVD-ROM). You must have a DVD-ROM drive to use DVD-ROM discs. If you have a DVD-ROM drive, then you can also play DVD movies on your computer. Many systems with DVD-ROM can output the video and sound to your TV and home audio system, so you may not have to buy a separate DVD player.
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Ques 48. What is Icon?
An icon is a picture used to represent an object. Some example objects are: data files, program files, folders, email messages, and drives. Each type of object has a different icon. That means that different types of files each have an icon representing its file type.
Example: MS Word files will have the MS Word icon; MS Excel files will have the MS Excel icon; Etc.
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Ques 49. What is Inactive window?
A window that is open but is not active means the window is behind other window.
Example: You opened Notepad and Paint. Now Paint is on top and Paint window is above Notepad and currently you are working on Notepad. In this case Notepad is Inactive window.
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Ques 50. What is Insertion point?
A vertical flashing line that shows the user where text will be inserted. In graphics-based programs, the insertion point is the point where the next characters typed from the keyboard will appear on the display screen. The insertion point is usually represented by a blinking vertical line. You can reposition the insertion point by pressing arrow keys or by moving the I-beam pointer.