OCRJ277 CompSci 1.1 – Systems architecture L2

The second of 3 complete lessons on OCR J277 Content of Computer Systems 1.1 – Systems architecture - 1.1.1 Architecture of the CPU.

Each lesson will have a:

• PowerPoint Presentation
• A Worksheet with Activities (With Answers)
• A Questions sheet (With Answers)
• A Multiple Choice Quiz (With Answers)

In this lesson, this is what will be covered.

The CPU, often referred to as the “brain” of the computer, is responsible for processing instructions and performing calculations that allow programs to function smoothly. Understanding the inner workings of a CPU is key to appreciating how computers execute complex instructions with remarkable speed and efficiency.

This topic delves into the core components of the CPU, such as the Control Unit (CU), Arithmetic Logic Unit (ALU), and Registers. Each of these parts contributes uniquely to the CPU’s functionality, from managing instruction execution and data flow (CU) to performing calculations and logical operations (ALU) and temporarily holding data during processing (Registers). Additionally, elements like Cache Memory and various types of Buses support these operations by facilitating data storage and movement, ensuring the CPU can access information rapidly and communicate with other parts of the computer.

By examining these common CPU components and their functions, students will gain insight into how the CPU interprets and carries out instructions, ultimately powering every action performed by a computer system. This foundational knowledge lays the groundwork for understanding broader computational concepts and system performance optimization.

All resources can be adjusted as needed for the learner.