Course: Computer Science & Electronics (because I'm mainly interested in operating systems, drivers, kernels which requires an understanding of the hardware)
Universities you're applying to: Imperial, UCL, Edinburgh, Warwick, Bristol (potentially cambridge instead of warwick/bristol but they don't have a Computer Science & Electronics course so probably not)
Grades: A* A* A* A* A in Maths, Further Maths, Computer Science, Economics, Physics
GCSEs: 5A*, 3A, 2B (A*s in Maths, science, french, geo, As in english language, religious studies, history, Bs in english literature and music -_-)
On a gap year, where I'm doing work experience at Amazon Web Services. Wrote about a number of projects in my personal statement, like a 32-bit kernel built from scratch using x86 assembly language and C, a Linux-based operating system I made when I was in Year 7 that got >100,000 downloads, some machine learning models like one that can identify traffic signs (like stop signs, speed limits) from a picture with 98% accuracy and some other stuff. I also contribute to the Linux kernel. (Still trying to figure out if I should link my github in my PS, some people say it's good, some say it's not)