Introducing the CPU, talking about its ALU, CU and register unit, the 3 main characteristics of the Von Neumann model, the system clock and the fetch-execute cycle. Made primarily for OCR GCSE Computer Science (J277) Paper 1. If this video was useful, please like it and subscribe, it really helps! Also, if you use an ad blocker, whitelisting my channel is very much appreciated! These videos will always be free but if you'd consider a donation I'd be extremely grateful - https://www.paypal.me/computersciencetutor or https://ko-fi.com/mrbrowncs. Link to my TES shop where I upload my teacher resources (including the PowerPoints): https://www.tes.com/teaching-resources/shop/computersciencetutor For any questions or enquiries, please email me using the address given on my channel page.