C, MPMC, Oops, basics of Digital electornics

do you know about embedded software

Computer memory – (types: primary vs. secondary, RAM/ROM, cache, registers, hierarchy). HDD (Hard Disk Drive) – (working principle: magnetic storage, platters, read/write head, access time, seek time, rotational latency, difference vs SSD). Basics of COA (Computer Organization & Architecture) – (instruction cycle, addressing modes, CPU organization, pipelining basics, I/O techniques, memory hierarchy). Mistakes you did in Round 2 written exam – (they wanted you to reflect and correct yourself, showing learning ability). and gave 20 programs dsa in c