Covering the concept of the binary numbering system versus decimal/denary (base-2 vs base-10), why computers use binary and the units (including the binary prefix ones). Made primarily for OCR GCSE Computer Science (J277) Paper 1. If you are following another course, be sure to use the playlists on my channel. 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.