Basic Knowledge of Computer in Urdu/Hindi
 |
| Basic parts of Computer Image |
Basic Parts of Desktop Computer and Its Function
Introduction
The basic parts of a desktop computer are the computer case,
monitor, keyboard, mouse, and power cord. Each part plays an important role whenever
you use a computer.
The computer case is the metal and plastic box that contains
the main components of the computer, including the motherboard, central processing
unit (CPU), and power supply. The front of the case usually has an On/Off
button and one or more optical drives.
Computer cases come in different shapes and sizes. A desktop
case lies flat on a desk, and the monitor usually sits on top of it. A tower
case is tall and sits next to the monitor or on the floor. All-in-one computers
come with the internal components built into the monitor, which eliminates the
need for a separate case.
Monitor
The monitor works with a video card, located inside the
computer case, to display images and text on the screen. Most monitors have
control buttons that allow you to change your monitor's display settings, and
some monitors also have built-in speakers.
Newer monitors usually have LCD (liquid crystal display) or
LED (light-emitting diode) displays. These can be made very thin, and they are
often called flat-panel displays. Older monitors use CRT (cathode ray tube)
displays. CRT monitors are much larger and heavier, and they take up more desk
space.
Keyboard
The keyboard is one of the main ways to communicate with a
computer. There are many different types of keyboards, but most are very
similar and allow you to accomplish the same basic tasks.
Click the buttons in the interactive below to learn about
the different parts of the keyboard.
• If you want to
learn how to type or improve your touch-typing skills, check out our free
Typing Tutorial.
Mouse
The mouse is another important tool for communicating with
computers. Commonly known as a pointing device, it lets you point to objects on
the screen, click on them, and move them.
There are two main mouse types: optical and mechanical. The
optical mouse uses an electronic eye to detect movement and is easier to clean.
The mechanical mouse uses a rolling ball to detect movement and requires
regular cleaning to work properly.
To learn the basics of using a mouse, check out our
interactive.
Mouse alternatives
There are other devices that can do the same thing as a
mouse. Many people find them easier to use, and they also require less desk
space than a traditional mouse. The most common mouse alternatives are below.
• Trackball: A
trackball has a ball that can rotate freely. Instead of moving the device like
a mouse, you can roll the ball with your thumb to move the pointer.
• Touchpad: A
touchpad—also called a trackpad—is a touch-sensitive pad that lets you control
the pointer by making a drawing motion with your finger. Touchpads are common
on laptop computers.
PCs and Macs
Personal computers come in two main styles: PC and Mac. Both
are fully functional, but they have a different look and feel, and many people
prefer one or the other.
PCs
• This type of
computer began with the original IBM PC that was introduced in 1981. Other
companies began creating similar computers, which were called IBM PC Compatible
(often shortened to PC). Today, this is the most common type of personal
computer, and it typically includes the Microsoft Windows operating system.
Macs
• The Macintosh
computer was introduced in 1984, and it was the first widely sold personal
computer with a graphical user interface, or GUI (pronounced gooey). All Macs
are made by one company (Apple), and they almost always use the Mac OS X
operating system.
Author: Sheikh Muhammad Arslan.
nice and intrasting post
ReplyDeletelearn basic computer
ReplyDelete