Guru Jambheshwar University 2007 M.C.A computer organisation and architechture - Question Paper
Subject Code4273
M.C.A, (Second Year) EXAMINATION .
(5 Years Integrated Course)
(Re-appear)
MCA-204
COMPUTER ORGANIZATION AND ARCHITECTURE
Time : 3 Hours Maximum Marks : 100
Note : Attempt any Five questions. All questions carry equal marks.
1. (a) Design a 4-bit combinational circuit decrementor using four full adder circuit,
(b) Draw the flow chart for instruction cycle,
2. (a) Explain the function of the following
memory reference instructions :
(i) STA
(ii) BUN
(iii) BSA
(iv) LDA
(b) Draw' and explain the process of address selection for control memory in microprogrammed control unit.
3. Design a microprogrammed control unit along with microprogrammed sequencer.
4. (a) List out the instructions of each type of
addressing modes available.
(b) Differentiate between different types of interrupts available in CPU.
5. Differentiate between the following :
(a) RISC and CISC
(b) Hardwired and Microprogrammed Control Unit.
6. Explain the following modes of data transfer techniques in CPU :
(a) Progammed I/O
(b) Interrupt Driven I/O
(c) DMA.
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7. (a) Discuss different mapping techniques in
cache memory system.
(b) Explain the concept of virtual memory system for execution of program.
8. Write short notes on the following :
(a) Stack Organization
(b) Shift Microoperations
(c) Auxiliary Memory.
J-4273 3 1,500
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