A comprehensive guide to OCR GCSE Computer Science with hundreds of exam questions, tasks, and coding challenges, as well as all key definitions, pro tips, and a complete subject-specific vocabulary,  covering the following topics:
Binary System
Boolean Logic
Computer Harware
  Storage Devices
  Systems Architecture
  Algorithms
Computer Networks
  Network Security
Data Representation
  Systems Software
Impacts of Technology
  Databases and SQL
Python Programming
Producing Robust Programs
It includes a separate answer sheet with vocabulary included, as well as top tips to successfully complete the GCSE exam.