(b) Write three basic functions of different output devices
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Answer:
The video card and monitor work in conjunction to display visual output for the user. These two hardware devices help the user return instructions to the computer as well. The video card processes the images seen on the monitor. Monitor and video card quality determine how detailed images are returned. For users who only use a computer for data entry or office work, the images aren't as detailed. Gamers use the output of a video card and monitor to display detailed, 3D images, so the output instructions are more advanced.
Although a monitor and video card are required components for a computer, a sound card and speakers are optional. However, these two output devices give a better user experience for the computer. Just like a monitor and video card, the quality of the hardware output devices for sound also determine the detail. Speakers and sound card can provide surround sound just like a television setup. This type of sound setup is used by gamers and multimedia creators. There are also headsets available for speakers, so the output can be heard by the computer users without disturbing others in the home.