Operating Systems — 20 Exam-Style Questions

20 exam-style questions on operating systems for OCR GCSE Computer Science (J277/01), with full answers and guidance.
Covers both OS functions and utility software — user interface, memory management, peripheral management, user management, file management, defragmentation, encryption software, and data compression — with questions modelled on the style and command words used in actual J277 papers: complete the table, identify the weakness, describe, explain, evaluate, and a scenario-based justify question worth 4 marks.
Includes:

40 marks across 20 questions, split into three progressive sections
Scenario questions with data tables, matching the real exam format
Answers written for students, not teachers — no “award 1 mark” language
Watch out boxes targeting the specific misconceptions flagged in OCR examiner reports (including peripheral management described too vaguely, defragmentation described as creating more space, lossy compression on text files, and utility software confused with the OS itself)
Stretch & challenge questions to deepen understanding without going beyond the spec

Print-ready and suitable for independent revision, structured practice, or classroom use.