my name is Mohamad Gharishvandi , and i have M.Sc degree in electronics and electrical engineering , also i'm an instructor in many fields and i am currently teaching more than 10 courses on Udemy about security, networking and web development . If you are interested in low level stuff like ibm pc 5150 architecture at the lowest level, then you could take my course on udemy:

https://www.udemy.com/course/the-architecture-of-ibm-pc-5150-the-first-computer/?referralCode=006F4FF206A127704A47