CraignDave on YouTube
http://www.bbc.co.uk/bitesize - OCR revision site
https://compsci.homelearning.outwood.com/?fbclid=IwAR1TZT2Lbg-GqqzEtYfZ_TPc9FH_Hppxnk7QpouBpt1SHE6ZmbfxMYS84EM - You can use this site independently to help you keep on top of the knowledge required to help you next year. Focus on CPU, RAM and ROM Virtual Memory.
Computer Science Revision:-
Onilne revision resources for OCR Computer Science for GCSE 11 May 2020