Basic Parts of a Computer
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.
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Monitor
The monitor works with a video card, located inside the computer case, to display images and text on the screen.
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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.
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Touchpad
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.
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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.
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Mouse alternatives
Many people find them easier to use, and they also require less desk space than a traditional mouse.
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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.