The CPU and the stored-program idea
The CPU and the stored-program idea

The CPU is the main processor in a computer. Its job is to process data by repeatedly fetching, decoding and executing instructions from programs.
Step-by-step lessons on OCR GCSE Computer Science Architecture of the CPU. Each one builds up to exam-style questions. Build strong foundations in binary, logic and core programming constructs before moving on to the more complex algorithm design and evaluation questions.