🖥️ Basic Computer Training Notes
1. What is a Computer?
A computer is an electronic device that processes data and performs tasks based on instructions (software).
It consists of two main parts:
Hardware – the physical components (keyboard, mouse, monitor, CPU).
Software – programs and operating systems that tell the hardware what to do.
2. Types of Computers
Desktop Computers – large, stay on a desk.
Laptops – portable, battery-powered.
Tablets – touch screen-based.
Smartphones – small computers used primarily for communication and apps.
3. Basic Computer Components
Component Description
Monitor Displays text, images, videos
Keyboard Used to type letters, numbers, and commands
Mouse Moves the cursor and selects items
CPU (Tower) The brain of the computer; processes data
Printer Outputs documents to paper
Speakers Outputs sound
4. Operating System (OS)
The OS is software that manages hardware and other software.
Common OS examples:
Windows (most common for PCs)
macOS (used on Apple computers)
Linux (used in many technical fields)
5. Turning the Computer On and Off
To Turn On: Press the power button on the CPU or laptop.
To Shut Down Properly:
Click Start Menu → Shut Down
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