Searching Algorithms: Linear vs Binary Search | OCR GCSE Computer Science (J277)

Welcome back to our OCR GCSE Computer Science (J277) revision series! Today, we are mastering Unit 2.1: Searching Algorithms. To help you understand how computers find a needle in a digital haystack, we are using an interactive visualizer to see the algorithms in action. We will cover: - Linear Search: How it checks every item one-by-one, the pseudocode, and why it is used for unsorted lists. - Binary Search: How it repeatedly halves the dataset to find items incredibly fast. - The 1-Mark Exam Trap: Why Binary Search will instantly fail if you forget its golden rule. - Efficiency Comparison: When to use Linear Search versus Binary Search. - Challenge Zone: We step into the examiner's shoes and run a live audit on 5 classic exam questions, including a full Binary Search trace!