Why do computers use binary?

12 questions

1. People may write a message for a number of reasons. Which of these is NOT a reason to write a message?
2. Written messages can appear in many forms. Put these forms of writing into date order, from oldest to most recent.
3. A computer can store ___ and instructions.
4. Select all the ways that a light bulb can appear.
5. What is the next number in this sequence: 1, 2, 4, 8…?
6. What does the word 'binary' mean?
7. Match the words to the correct description.
8. Why do computers use binary?
9. What types of data can be represented by binary when stored on a computer?
10. If 1001 represents on, off, off, on, what does 01 represent?
11. Write the binary number that would represent off, on, on, off, off, on, off, on. You don’t need any spaces or punctuation.
12. Five binary digits allow 32 combinations, six binary digits allow 64 combinations. How many combinations can we represent with eight binary digits?

License: OGL