Keyboard shortcuts

Press or to navigate between chapters

Press S or / to search in the book

Press ? to show this help

Press Esc to hide this help

External Devices (Peripherals)

We’ve talked about what’s inside the computer case, but what about the things we plug in? These are called peripherals.

What is a Peripheral?

A peripheral is any device that connects to the computer but is not part of the main computer box. They help us give the computer more “skills.”

Common Peripherals

  • Printers: Used to put what’s on your screen onto a piece of paper.
  • Webcams: Small cameras that let people see you during video calls.
  • External Hard Drives: Extra storage for your files that you can carry around.
  • Game Controllers: Joysticks or pads used for playing games.

How do they connect?

Most peripherals today connect using a USB port. USB stands for Universal Serial Bus, and it’s like a universal plug that works for almost everything!


Questions

  1. What is another name for “external devices” that we plug into a computer?
  2. Name one device you might use to save extra photos if your computer is full.
  3. What is the name of the most common plug used to connect these devices?