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Bits, bytes, and number systems

Bits, bytes, and number systems

8-bit place value chart showing 128 to 1, two nibbles, and 10110101 converting to hexadecimal B5

Computers store all data as binary, so every file is ultimately a pattern of 000s and 111s. One binary digit is a bit, and 888 bits make 111 byte.

Data storage Lesson

  1. GCSE
  2. /Computer Science
  3. /Data storage

Step-by-step lessons on OCR GCSE Computer Science Data storage. 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