Computer Architecture 2075(New Course)
Long Questions:
Attempt any Two questions:(2 x 10=20)
1. In the RISC architecture, what is meant by over lapping register window? Explain the relationship among register windows with over lapping register windows.
3. What are the different types of pipe line hazards? Explain each pipe line hazard with example.
Short Questions:
Attempt any Eight questions:(8 x 5 = 40)
4. Explain the computer components.
5. Explain the stored-program concept with example.
6. Differentiate between CISC and RISC architectures.
7. Differentiate between instruction pipe line and an arithmetic pipe line.
8. Divide 10/4 using non-restoring division.
9. Define associative memory. Explain with block diagram how it can be implemented.
10. Differentiate between hardwired control unit and a micro programmed control unit.
Answered by: Ranjit Shrestha
Hardwired Control Unit
1. Hardwired control unit generates the control signals needed for the processor using logic circuits 2. Hardwired control unit is faster when compared to microprogrammed control unit as the required control signals are generated with the help of hardwares 3. Difficult to modify as the control signals that need to be generated are hard wired 4. More costlier as everything has to be realized in terms of logic gates 5. It cannot handle complex instructions as the circuit design for it becomes complex 6. Only limited number of instructions are used due to the hardware implementation 7. Used in computer that makes use of Reduced Instruction Set Computers(RISC)
Microprogrammed Control Unit 1. Micrprogrammed control unit generates the control signals with the help of micro instructions stored in control memory 2. This is slower than the other as micro instructions are used for generating signals here 3.Easy to modify as the modification need to be done only at the instruction level 4.Less costlier than hardwired control as only micro instructions are used for generating control signals 5. It can handle complex instructions 6. Control signals for many instructions can be generated 7.Used in computer that makes use of Complex Instruction Set Computers(CISC)
11. How does DMA controller work? Give an example of DMA data transfer.
12. Explain an inter connection network and its use.