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The difference is that a flatbed scanner scans one page at a time on a glass surface, while
a sheet-fed scanner can automatically handle and scan a stack of papers.
Webcam: A webcam is a digital video camera connected to a
computer, allowing you to transmit your image over the Internet.
Smaller than traditional cameras, webcams are typically attached to
the computer monitor or built into the device. They are widely used
for video conferencing, online streaming, and virtual meetings.
Graphic Tablet: A graphic tablet allows you to draw directly on a
computer screen using a stylus, which resembles a pen. The device
features a flat surface where you can create drawings and designs,
making it ideal for digital art and graphic design.
Joystick: A joystick is a pointing device used to control the movement of
a pointer on a computer screen, primarily for playing games.
Microphone: A microphone is an input device that captures voice, music, and
sound, converting them into digital signals for processing by the computer. It is
commonly used in communication, music recording, and speech recognition.
Touchscreen: A touchscreen is a display that is sensitive to touch,
allowing interaction with a computer by touching the screen. It is
commonly found on tablets, smartphones, and ATMs.
Output Devices
Output devices are used to display the results of computations and information to the user. Here
are some common output devices:
Monitor: The monitor, also known as the Visual Display Unit (VDU). It is
one of the most familiar output devices. It displays images composed
of tiny dots called pixels. The clarity of these images depends on
the number of dots per inch (dpi); a higher dpi provides sharper
and clearer images. Modern monitors, particularly those with Light
Emitting Diode (LED) screens, are popular for their excellent image
quality and slim design.
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