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Petabyte - GCSE Computer Science Definition

Reviewed by: James Woodhouse

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A petabyte is a unit of digital information storage used to measure large amounts of data. It is equal to 1,024 terabytes, or about one million gigabytes. To give you an idea of its size, a petabyte can hold roughly 500 billion pages of standard printed text or 13.3 years of high-definition video. In GCSE Computer Science, understanding a petabyte is important because it helps you appreciate how data is stored and managed on an enormous scale, such as in big data applications and cloud storage systems.

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James Woodhouse

Reviewer: James Woodhouse

Expertise: Computer Science & English Subject Lead

James graduated from the University of Sunderland with a degree in ICT and Computing education. He has over 14 years of experience both teaching and leading in Computer Science, specialising in teaching GCSE and A-level. James has held various leadership roles, including Head of Computer Science and coordinator positions for Key Stage 3 and Key Stage 4. James has a keen interest in networking security and technologies aimed at preventing security breaches.

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