Computer Basics 面试题与答案

问题 46. How do we change the screen resolution of our computer?

问题 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.

问题 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. 

问题 49. What is Inactive window?

A window that is open but is not active means the window is behind other window.

问题 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.