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Why computers use binary

Why computers use binary

Comparison of 1-bit, 2-bit, and 3-bit binary patterns shown as switches, with 2, 4, and 8 possible states and notes that each extra bit doubles the patterns

Computers are electronic machines, so inside their circuits it is easiest to distinguish between two reliable conditions such as off/on or low/high voltage. That is why computers use binary, a system with just two digits: 0 and 1.

Binary representation and number of states Lesson

  1. GCSE
  2. /Computer Science
  3. /Binary representation and number of states

Step-by-step lessons on Edexcel GCSE Computer Science Binary representation and number of states. Each one builds up to exam-style questions. Build strong foundations in binary, logic and core programming constructs before moving on to the more complex algorithm design and evaluation questions.

Lessons