Edexcel IAL Computer Science – Topic 1 Computer systems – Bundle (11 lessons)

A complete, ready-to-teach bundle for Pearson Edexcel International A Level Computer Science (2026): Topic 1 Computer systems, in 11 bespoke lessons.

Every lesson comes with:

• Editable PowerPoint slides: goals, starter, explanations, diagrams, worked examples, a quick check, a task and an exit ticket, with teacher notes
• Student worksheet (Word): recall, applied practice and exam-style questions with marks
• Answer sheet (Word): full mark-scheme style answers

Worth £54.89 if bought lesson by lesson.

What’s inside

• U1.01 Stored programs and von Neumann
• U1.02 Inside the computer: memory, I/O and buses
• U1.03 Components of the CPU
• U1.04 The fetch-decode-execute cycle
• U1.05 The memory hierarchy
• U1.06 Serial and parallel transmission
• U1.07 The role of the operating system
• U1.08 Multitasking and interrupts
• U1.09 Processes and scheduling
• U1.10 Memory management
• U1.11 The call stack and stack frames

Why teachers use it

• Mapped lesson by lesson to the specification, so coverage is easy to track
• Python 3 throughout, as the specification requires
• Fully editable: adapt to your class, timings and school template
• Works for teaching, revision, cover lessons and homework

These are independent resources written for the Pearson Edexcel International Advanced Level Computer Science specification (Issue 1, first teaching 2026; IAS XCP01, IAL YCP01). They are not produced or endorsed by Pearson.