Multiple choice

Which two digits are used in the binary number system?

  1. 1 and 2

  2. 0 and 1

  3. 1 and 10

  4. 5 and 10
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The binary number system uses only two digits: 0 and 1. This base-2 system is fundamental to digital computing because it represents the two states of electronic switches (on/off).

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