In this article i will share 5
easy ways to interact with a computer
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| 5 easy ways to interact with a computer |
INTERACTING
WITH THE COMPUTER
Consider this: the
computer really needs the user’s help to get things done. Even at the most basic
level, every action that the computer takes is in direct or indirect response
to the user’s actions. Now this may seem a little strange, but I can’t say this
enough: the computer does something because you have done something.
Well, how does the
computer get the actions (or stimulus)? And how does it respond?
I’m glad you asked.
VARIOUS INPUT/OUTPUT DEVICES
Each computing device
(be it a computer, printer, calculator, etc.) has what are called “input and
output devices”. An input device sends information (or stimulus) to the
computer, and the output device retrieves information (or response) from the
computer.
There are several
input and output devices. We use these to communicate with the computer so that
we can get what we need to do. Input and output devices used to be exclusively
input or output. However, in order to make your life a little easier, a
lot of them receive and send data to the computer. This is what I mean:
You
interact with the computer with this 5 easy ways via the following means:
11. Keyboard
Keystrokes
you typed. Num Lock, Caps Lock and Scroll Lock LEDs
22. Monitor
Resolution
support, touch coordinates (if touch screen).Text and graphics
33.
Mouse
X,
Y mouse movement changes. – (some initialization commands)
44. Scanner
Scanned
image in grays or colors. Resolution
(dots-per-inch), number of colors or grays and scan region.
55. Printer
Readiness,
error conditions, etc. Document to be printed, Display messages.
With all these
devices (there are many more), you may find it difficult to learn how to work and interact with a computer, unless they had some common interface (or method of communicating).
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