BIOS and bootstrapping | Complete Lesson Pack for Cambridge IGCSE, AS & A-Level Computer Science.

Also suitable for AQA GCSE Computer Science, OCR GCSE Computer Science, Edexcel Computer Science and A-Level Computer Science teachers.

What’s Inside

1 - Lecture (30 slides) — 5 sections:

S01 BIOS: definition, ROM/flash storage, CMOS, beep codes
S02 Boot Sequence: 6-stage visual diagram, MBR layout (512 bytes breakdown), bootstrap chain
S03 BIOS Settings: boot order, CMOS battery, setup utility
S04 UEFI vs Legacy BIOS: side-by-side comparison, Secure Boot, UEFI boot path
S05 OS Handoff: kernel loading, x86 memory map (0x7C00 through 0xFFFF0)

2 - Worksheet — Sections A–D covering definitions, ordering tasks, structured questions, comparison table, and an 8-mark extended boot sequence trace question.

3 - Activity — Boot sequence ordering card sort, three POST fault diagnosis scenarios (beep codes, ‘no bootable device’, CMOS battery), BIOS setup simulation table, and a BIOS vs UEFI structured class debate.

4 - MCQ Quiz — 20 questions mapped to Q1–5 (BIOS/POST), Q6–12 (Boot/Bootstrap), Q13–16 (UEFI features), Q17–20 (applied scenarios).

5 - Marking Scheme — Point-marked model answers for all 20 worksheet questions, MCQ key, misconception notes for the 5 most commonly confused questions, and activity facilitation guidance.

All worksheets are print-ready

Fully editable resources.

Great for: classroom teaching, revision lessons, flipped learning, homework tasks.

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