GlossariesIGCSE GlossariesIGCSE Computer Science Glossary1-Dimensional Array

1-Dimensional Array - IGCSE Computer Science Definition

Reviewed by: James Woodhouse

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What is a 1-dimensional array?

In IGCSE Computer Science, a 1-dimensional (1D) array is a structured data type that stores multiple elements of the same data type in a single linear structure. Each element is accessed using an index, starting from 0 in most programming languages.

How is a 1D array used?

1D arrays are commonly used for storing lists of values, such as student scores or sensor readings. They allow efficient data retrieval and modification.

Example in Python:

scores = [12, 10, 5, 2, 8]

print(scores[2]) # Output: 5

Revision resources to ace your exams

Explore 1D arrays in more detail and master other key related terms such as 2D arrays in our revision note pages here:

Arrays (CIE IGCSE Computer Science)

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James Woodhouse

Reviewer: James Woodhouse

Expertise: Computer Science 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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