MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -A screensaver (or screen saver) is a computer program that blanks the display screen or fills it with moving images or patterns when the computer has been idle for a designated time. The original purpose of screensavers was to prevent phosphor burn-in on CRT or plasma computer monitors (hence the name).

Detailed explanation-2: -A screen saver is a utility that causes a display device’s screen to show a moving image or blank screen if no keyboard or mouse activity occurs for a specified time.

Detailed explanation-3: -We’ll look at some things that can cause a black or blank screen: Connection problems with your monitor or screen. Display adapter driver update issues. Issues with recent system updates or installations.

Detailed explanation-4: -What is a screensaver? A screensaver is a computer program that can be set to turn on after a period of user inactivity (when you leave your computer). It was first used to prevent damage to older monitors but is now used as a way to prevent viewing of desktop contents while the user is away.

Detailed explanation-5: -If you have a flat panel LCD monitor, unplug the monitor power cable, wait about 30 seconds, reconnect the cable and then turn on the monitor. This resets the electronics on the monitor. If the monitor has a detachable video cable, obtain a second monitor cable for testing purposes in case the cable is bad.