Code.org · IT basics
CPU, memory, input & output
See how a computer takes input, processes information, stores data and produces output.
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IT video tutorials
Start with these introductory videos, then put what you learn into practice.
Code.org · IT basics
Hardware & software
Explore how physical components and programs work together to run your computer.
Watch on YouTube (opens a new tab)Code.org · IT basics
Wires, cables & Wi-Fi
Discover how electrical signals, light and radio waves carry data between devices.
Watch on YouTube (opens a new tab)0 of 3 lessons reviewedMark lessons after reviewing them. Your progress is saved in this browser.
Try it yourself
- Hardware: list two input devices and two output devices you use.
- Software: name your operating system and three applications you use.
- Networks: identify which devices in your home connect by Wi-Fi or Ethernet.
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