Madurai Kamraj University (MKU) 2006 M.C.A -X MICRO PROCESSOR AND PERSONAL COMPUTERS - Question Paper

Time: 3 hours maximum: 100marks
PART A ans all ques. (8x5=40 marks)

1. (a) discuss the Bus control and address control. Or (b) elaborate the advantages of 8080
microprocessor with relation to the execute cycles.

2. (a) elaborate the uses of stack pointer and instruction pointer? Or (b) what is logical
address? The data segment base address is FFOOH. The logical offset address is
0321H.Find the physical address of memory.

3. (a) discuss how address decoding is used to interface the MPU and memory subsystem.
Or (b) elaborate the functions of mode registers in the DMA controller chip?

4. (a) discuss the function of the bus subsystem. Or (b) what can be used as a method of
handling multiple interrupts in a microcomputer system?

5. (a) Draw the system board block diagram. discuss. Or (b) elaborate the advantages of
Winchester disk over floppy disk?

6. (a) Compare linear and switching power supply. Or (b) discuss an interrupt driven
system.

7. (a) define the floppy disk adapter. Or (b) define the difference ranging from the floppy
disk drive and the hard disk drive.

8. (a) what is meant by handshaking? discuss. Or (b) discuss the video display system.

PART B ans ALL ques. (5x12=60 marks)

9. (a) explain the I/O subsystem in detail. Or (b) what is debugging? discuss the editor,
assembler and linker for creating (or) I/O sub system.

10. (a) what procedures and precautions should be taken to accurate MPU faulty problem?
Or (b) List the names and define the functions of general registers.

11. (a). What is meant by system configuration? provide an example. Or (b) elaborate the
different timing signals in an IBM PC system? discuss their uses.

12. (a) discuss the purpose of the subsequent components in a floppy diskette and its jacket.
I) Index hole. II) Write protect notch. Or (b) elaborate the various kinds of propagating
elements in a magnetic bubble memory device?

13. (a) provide a detailed comparative discussion ranging from liquid crystals display with that of
LED based system. Or (b) elaborate the basic working principles of modems and
acoustic coupler?

Earning:   Approval pending.