1) The four (4) main components of a computer system are: Processor: controls the operation of the computer and performs its data processing functions Main memory: stores both data and instructions; I/O modules: which move data between the computer and its external environment System Bus: provides for communication among processors, main memory, and I/O modules Which of the above 4 components do you believe is most important?

Why? Hint: In a job interview, you have no access to anything, including the web.

2) Adding more processors (CPUs) to a computer system, regardless the kind of operating system is in use, will always improve the performance of the computer system.

Is the above statement correct? Please explain

3) Booing up the system means booting up the operating system. Hence, the operating system is not capable of booting up itself. Please explain how an operating is booted up?