Chapter 3: Installing and Configuring Output Devices
Exam Objectives
Understanding video adapters and monitors
Working with sound cards
Other output devices
An output device sends data from the computer and creates a tangible output. Examples of output for a system are displaying information on the monitor, printing a report, or even listening to the sound that the sound card puts through the speakers when playing your favorite computer games.
This chapter also looks at the video hardware that is responsible for creating the images on the screen and discusses how a sound card works. These topics are essential to passing your A+ certification exams, so be sure to study them well!
Understanding Video Adapters
A video adapter (also known as a video card) — the interface between the monitor and the computer — is responsible for display functions. For example, when using a CRT monitor, the video adapter is responsible for converting the digital data from the computer into analog information. The data is converted to an analog signal before being delivered to a monitor because CRT monitors use analog data to create the image.
Because display functions are very time- and memory-consuming, ...
