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How Computers Work: Binary & Data

From Code.org: CS Fundamentals

How Computers Work: Binary & Data
6 min4th5th6thTechnology
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Summary

This episode explains binary -- how computers represent every photo, word, and sound as combinations of just two values, 0 and 1 -- and why that simple on/off system is powerful enough to store all kinds of data.

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All ages
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Teaching resources

Discussion questions

Discussion

This video explains binary, the two-value (0 and 1) system computers use to store data.

  1. What are the only two values a computer's binary system uses?
  2. Why do you think computers use such a simple system instead of something more complex?
  3. What kinds of things (besides numbers) can binary be used to represent?

Quick work-a-long

Words to know: binary, bit, data.

Try it: Using only two symbols (like clap/silence or on/off), invent a short "binary" code for the letters in your name and share it with a partner.