What is a hard disk? What are the functions of a hard disk?
What is a hard disk? What function does it have in a computer?
What is a computer and its components? What is the main circuit board of a computer? How is it built and what is its function? What is the main circuit board of a computer? What are its functions? What is the function of the CPU in a computer? What are hard disk farms? What is the function of a CPU in a computer? What are the basic component of computer system? What is the file system in Linux? What is file system in Linux? What are some of the main components of a computer? What functions do they serve? What are the different types of bytes of a computer? What are the main components of a computer? What are computer systems? What are the functions of computer systems? What is the function, or job, of an operating system? What are the components of  a computer? What is hard disk drive failure? What is an operating system in PC? What are the internal parts of a computer and what is their purpose? What are the internal parts of a computer system? What purpose do they serve? What are the major components of a computer system? What are some components of a computer? What is Linux? What is its use? What are some output devices of a computer? What are the main components of a computer system? What are the primary components of a computer? What are the functions of the hardware components of personal computers? What are the main components of a computer? How do they work together? What is a CPU's main function and use? What is a VFD (variable-frequency drive)? What are the different computer components? What are their functions?