VIDEO DISPLAY MONITORS– Video display
Several video adapters cannot generate graphic
monitors come in several sizes and styles. They can
displays. Resolution of the display can be controlled
be monochrome or color. They can be driven by
by some video adapters. Many video adapters contain
digital or analog signals. Analog signals are able to
some random access memory (RAM) for refreshing
present a higher quality picture.
VIDEO DISPLAY ADAPTERS– Video display
adapters provide the signals to the monitor to display
the picture. Video adapters can generate monochrome
or color displays. It is extremely important that the
monitor be compatible with the video adapter. A
digital monitor connected to an analog adapter could
cause serious damage to the monitor and computer.
the display.
INPUT DEVICES— Common input devices used
with personal computers are the keyboard, mouse, and
trackball. The 101-key enhanced keyboard is the most
common keyboard and considered the standard
keyboard. A mouse is a pointer device that allows the
user to quickly move the cursor about the screen. The
trackball functions in the same way as the mouse.
2-7
