This episode introduces fundamental data structures relevant to computer science, specifically for an OCR A Level curriculum. It aims to familiarize students with the concept of data structures and how various types are represented and stored. The text focuses on arrays, detailing their use in one, two, and multi-dimensional forms, complete with pseudocode examples and trace tables to illustrate their manipulation for sorting and calculations. Additionally, it covers tuples, highlighting their ordered, mixed-type, and immutable properties, and records, describing them as fixed collections of different data types often resembling spreadsheets. The document concludes by differentiating between static and dynamic data structures based on their ability to change size.