Computer · lesson 14 of 30 · free

Storage units: bits and bytes — Computer worksheet

Computer memory is measured in units. The smallest is a bit — a single 0 or 1. Eight bits make one byte. Then each unit is 1024 times the one before: 1 KB (kilobyte) = 1024 bytes, 1 MB (megabyte) = 1024 KB, 1 GB (gigabyte) = 1024 MB and 1 TB (terabyte) = 1024 GB.

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Got it? Practise ↓

Remember

Multiply to go smaller — “to change a bigger unit into a smaller one, multiply”

  1. Order from smallest to biggest: bit < byte < KB < MB < GB < TB.
  2. 1 byte = 8 bits; 1 KB = 1024 bytes; 1 MB = 1024 KB; 1 GB = 1024 MB; 1 TB = 1024 GB.
  3. To change big units into small units, multiply: 2 KB = 2 × 1024 = 2048 bytes.

Use it for: Class 3 computer lessons on memory units, comparing file sizes and checking how much a pen drive can hold.

Worked example: 💾 How many bytes are there in 2 KB? → 2048

  1. 1 KB = 1024 bytes.
  2. 2 × 1024 = 2048 bytes.

Check: 1024 + 1024 = 2048 ✓

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🏁 Lesson 14 test

20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.

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🖨️ Class 3 Computer Worksheet: Bits and Bytes

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