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Computer Science
OCR GCSE Computer Science
Memory and Storage
Data Units
Units of Data Storage
OCR GCSE Computer Science · J277
Units of Data Storage
What you need to know
Understand and recall the units of data storage: Bit, Nibble, Byte, Kilobyte, Megabyte, Gigabyte, Terabyte, and Petabyte.
Convert values between different data units.
Recognize that data storage devices have varying fixed capacities.
Apply calculations using either 1,000 or 1,024 for data conversions.
Account for metadata in storage capacity calculations.
Revision notes
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Units of Data Storage
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Previous topic: Secondary Storage
Comparing Storage Devices
Next subtopic
Binary Data Conversion
Units of Data Storage — OCR Computer Science J277 | GradeGen
