Please be detailed in your solutions and explanations as I need to study from the work, and prepare for exams. Course - Computer Organization

Cung Moating point number representation when 7x1.1011 is added to 21011 the normalized results 2.7x10.00001 b. 2 010101 c. 2x1.000001 d. 2 000001 7. When the AND operator is used on the bit patterns 101101 and 110111, the result is 2100101 b. 011010 c001100 c. 110001 OR 1 0 0 1 1 0 1 0 1 1 0 1 1 0 1 0 The result of OR operation on the above bits is 2.10011010 b. 11011011 c 11011010 0.01011100 9. Use a mask to clear the 4 leftmost bits of the pattern 10100110 a.01000110 b. 00000110 c. 00001111 d. 01110110 10. Set the 5 leftmost bits of the pattern 11100100 a. 10100100 b. 11000100 c 11110101 d. 11111100 SECTION B: SHORT ANSWERS MAX MARKS: 10 POINTS Learning Outcome: CLOZ: Explain the functions of processor, main memory and 10 devices 1. Give reason why the address bus is unidirectional whereas data bus is bidirectional. (2 marks) 2.Explain in detail the functions of three sections of the central processing unit. (3 marks) 3. Illustrate the sequence of operations between the main memory and cache memory when instructions are fetched into the main memory 13 marks) What is the function of the DMA (Direct Memory Access) Controller [2 marks)