OCR GCSE (J277) SLR 1.1 Systems Architecture

It includes:

• Student Learning Record Workbook (for use by students)
• Student Learning Record Answers (for use by teachers)
• End of Topic test and answers
• Lesson PowerPoint’s for every lesson
• Any associated answers or references sheets for class activities

This topic covers:

1.1.1 Architecture of the CPU

• The purpose of the CPU:
• The fetch-execute cycle
• Common CPU components and their function:ALU (Arithmetic Logic Unit)
• Registers
• Cache
• CU (Control Unit)
• Von Neumann architecture:
• MAR (Memory Address Register)
• MDR (Memory Data Register)
• Program Counter
• Accumulator

1.1.2 CPU performance

• How common characteristics of CPUs affect their performance:
• Clock speed
• Cache size
• Number of cores

1.1.3 Embedded systems

• The purpose and characteristics of embedded systems
• Examples of embedded systems