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1. What is a Computer?

A computer is a powerful electronic device that is capable of accepting data (input), processing it according to specific instructions (software), storing the information, and producing the desired results (output). It operates based on a series of logical operations and can perform millions of tasks in just a second.

      Computers are used in every aspect of modern life — from education, business, and healthcare to entertainment, research, communication, and artificial intelligence.
    

📌 Key Functions of a Computer:

Input: Receiving data from devices like keyboard, mouse, scanner, etc.
Processing: The CPU (brain of the computer) processes instructions and makes decisions.
Storage: Temporarily or permanently saving data using memory (RAM/ROM) and storage devices (HDD/SSD).
Output: Displaying results through monitor, speakers, printer, etc.

Input ➡ Processing ➡ Storage ➡ Output

🎯 Why Computers Matter?

Computers have revolutionized the world. They help humans solve complex problems, communicate globally, and perform tasks faster, smarter, and more efficiently. From controlling satellites to powering your smartphone, computers are the foundation of the digital age.