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Touchscreen: A touchscreen is a display on devices like phones, tablets,
and laptops that lets users interact by touching the screen with their
fingers or a stylus. This technology is an easy way to use devices instead
of a mouse or keyboard. Touchscreens help users navigate menus and
enter information easily, improving their experience.
Webcam: A webcam is a device that captures video and audio for
communication. It lets users see and hear each other during video calls
and streams. This makes webcams useful for online meetings and content
creation, improving digital communication.
Smartphone: A smartphone is a gadget that lets you do many things.
You can type messages, take pictures, and use various apps (input). It
also shows you videos, plays music, and makes calls (output).
Headset: A headset is a device that combines headphones, for listening, with a
microphone, for speaking. It is commonly used for activities like online
communication, gaming, and virtual meetings, allowing users to hear audio
clearly and speak hands-free.
Smartwatch: A smartwatch can show you the time, track your fitness, and
display notifications from your phone (output). It can also let you respond to
messages or make calls using its touchscreen (input).
Laptop: A laptop is a computer that you can be used to type documents,
browse the Internet, and play games (input). It also displays information
on its screen, plays sound through its speakers.
Smart Board: A smart board is a large interactive screen used in
classrooms. You can write on it and interact with it using touch or
special pens (input). It can also show videos, presentations, and
diagrams (output).
Storage Devices
Storage devices refer to the components that store data temporarily or permanently, enabling
the computer to perform tasks efficiently. It is essential for both processing and data storage.
Primary Storage Devices: Primary storage devices, also known as main or internal memory,
are crucial for a computer’s functionality, temporarily holding data and instructions for efficient
processing by the CPU. Primary memory is of two types:
Random Access Memory (RAM): RAM temporarily holds data and
instructions while the computer is working. Since it’s volatile, all data
disappears when the computer is turned off, so saving your work
is essential. It allows quick access to information, making tasks run
smoothly.
Fundamentals of Computer 17

