Lesson 1.5: How Computers Work

Lesson 1.5: How Computers Work

Objective: Understand how a computer operates from booting up to performing tasks.

Key Concepts:

  1. Booting Up Your Computer:
    When you turn on your computer, it begins the boot process. The computer’s operating system loads from storage (HDD or SSD) into RAM. During this time, the computer checks all essential hardware and loads the necessary drivers to ensure everything works properly.
  2. Running Programs:
    Once the computer is booted up, you can run applications. When you open a program, the computer loads the program’s instructions into RAM. The CPU processes these instructions and carries out the tasks you request (such as displaying a document or browsing the web).
  3. Shutdown Process:
    When you shut down your computer, the operating system stops all running programs and safely closes down the system. This ensures that no data is lost and the computer can power off safely.

Lesson Summary

In this module, you’ve learned about the basics of a computer, its components (both hardware and software), and how they work together. You now understand:

  • What a computer is and the various types of computers available.
  • The main hardware components of a computer, including the CPU, RAM, storage devices, and graphics card.
  • The software components, focusing on the operating system and applications.
  • How different computer brands and configurations affect performance.

Activities & Exercises

  1. Identify Your Computer’s Components:
    • Take a moment to examine your computer and identify the hardware components mentioned in the lesson (e.g., monitor, CPU, keyboard). If you’re using a laptop, identify the CPU and RAM specifications in your system settings.
  2. Explore Your Computer’s Specifications:
    • Look up your computer’s specifications (e.g., CPU model, RAM size, storage type) by checking in your computer’s system settings or using a tool like CPU-Z or System Information.