Glossary term
What is CPU (Central Processing Unit)?
CPU stands for Central Processing Unit.
Runs program instructions. Example: More cores = more work in parallel.
Learn it properly · System DesignLesson 4: Processes, Threads & Concurrency for Backend EngineersMost backend work is waiting. How one server juggles thousands of requests — processes, threads, event loops and lightweight threads — and the race conditions, deadlocks and pool limits that appear the moment it does.