What Is a CPU and What Does It Do?
The CPU processes program instructions and coordinates the overall flow of work inside a computer.
Read the articleOnline PC Doctor reference library
Hardware explained
Clear explanations of the PC components that work together every day.
✓ Plain-language definitions✓ Practical context✓ TR & EN library
Topic library
Articles in this collection
Clear explanations are published after editorial review.
Do you have a PC problem?
Turn what you learned into the right next step.
The PC Problem Center connects symptoms with safe checks and practical solutions.