This document is the official Pearson BTEC Level 3 National Extended Diploma in Computing – Unit 2: Fundamentals of Computer Systems mark scheme (January 2026). It provides detailed answers, marking guidance, and level-based descriptors used by examiners to assess student responses.



The mark scheme includes:



Full model answers for all questions in the exam paper

Step-by-step marking points for short-answer questions

Extended response guidance showing how marks are awarded

Level descri...