Searching algorithms - GCSE Computer Science Definition

Reviewed by: Robert Hampton

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Searching algorithms are step-by-step methods used by computers to find specific items or information within a collection of data, such as a list or database. Just like looking for a book on a shelf, searching algorithms help locate the exact piece of information you need. Two common types of searching algorithms are linear search and binary search. A linear search looks at each item one by one until it finds what it's looking for, while a binary search is more efficient, as it divides the list in half repeatedly and checks if the item is in the left or right half, but it only works if the list is already sorted. Understanding searching algorithms is important in computer science because they help in making computers more efficient at finding information quickly.

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Robert Hampton

Reviewer: Robert Hampton

Expertise: Computer Science Content Creator

Rob has over 16 years' experience teaching Computer Science and ICT at KS3 & GCSE levels. Rob has demonstrated strong leadership as Head of Department since 2012 and previously supported teacher development as a Specialist Leader of Education, empowering departments to excel in Computer Science. Beyond his tech expertise, Robert embraces the virtual world as an avid gamer, conquering digital battlefields when he's not coding.

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