What
is computer
A computer is an electronic device that manipulates
information, or data. It has the ability to store, retrieve, and process data.
You probably already know that you can use a computer to type documents, send
email, play games, and browse the Web. You can also use it to edit or
create sheet, presentations , and even videos. Before we talk about
different types of computers, let's talk about two things all computers have in
common: hardware and software. Hardware is any part of your computer that has a
physical structure, such as the keyboard or mouse. It also includes all of the
computer's internal parts, which you can see in the image below. Software is
any set of instructions that tells the hardware what to do. It is what guides
the hardware and tells it how to accomplish each task. Some examples of
software include web browsers, games, and word processors. When most people
hear the word computer, they think of a personal computer such as a desktop or
laptop. However, computers come in many shapes and sizes, and they perform many
different functions in our daily lives. When you withdraw cash from an ATM,
scan groceries at the store, or use a calculator, you're using a type of
computer. Many people use desktop computers at work, home, school, or the
library. They can be small, medium, or large in style, and they usually sit on
a desk. Once you add a monitor, mouse, and keyboard, you have what is typically
known as a desktop computer. The second type of computer you may be familiar
with is a laptop computer, or a laptop. Laptops are battery- or AC-powered
personal computers that are more portable than desktop computers, allowing you
to use them almost anywhere. Tablet computers or tablets are handheld computers
that are even more portable than laptops. Instead of a keyboard or touchpad,
tablets use a touch-sensitive screen for typing and navigation. The iPad is an
example of a tablet. A server is a computer that serves up information to other
computers on a network. Many businesses have file servers employees can use to
store and share files. A server can look like a regular desktop computer, or it
can be much larger. Are you new to using computers? Do you
wonder what people mean when they say the cloud, Windows, ISP, or app? Perhaps
you just want to know more about how computers work. When it comes to learning
today's technology, our Computer Basics tutorial has all of the basic concepts
covered.
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