Section A Q.1 (a) Fig. Q1 illustrates the structure of a simplified computer system. There are three buses to connect a CPU Note: The number under a memory is its address Fie. Q1 (i) How many bits does the address bus require? (ii) In order to read a location in a single cycle, how many bits does the data bus require? (iii) What is the function of control bus? ( 2 marks) (iv) Determine the address value, data and control signals that will be placed on the address bus, instruction/data bus and control bus, respectively, in each fetch and execution cycle of the CPU when executing the following two instructions: b) Describe the roles of BJOS and bootstrap loader during the boot process. Is it possible to start the operation system (OS) immediately when the computer is switched on? Explain your answer. (6 marks)