Microsoft Office Tutorials and References
In Depth Information
Based on what you have learned about the computing process and types of computers,
you decide to recommend that Mr. Paik purchase some personal computers. When you
look at the ad, however, you realize that there are several specifications that Mr. Paik may
not understand. Your recommendation will have to explain what each listed component
does, and why it is important. The remainder of this tutorial will focus on personal com-
puter hardware and software in more detail, so you can learn what you need to know to
make a better recommendation.
As you’ve already learned, computer hardware can be defined as the physical compo-
nents of a computer. Now look at the hardware you might use in a typical personal
You input data and commands by using an input device such as a keyboard or a mouse. The
computer can also receive input from a storage device. This section takes a closer look at the
input devices you might use. Output and storage devices are covered in later sections.
The most frequently used input device is a keyboard . The top keyboard in Figure 7 is a
standard 101-key keyboard. Newer keyboards, such as the bottom keyboard in Figure 7,
are ergonomic , which means that they have been designed to fit the natural placement of
your hands and should reduce the risk of repetitive-motion injuries. All keyboards consist
of three major parts: the main keyboard, the keypads, and the function keys.