Thursday, September 1, 2016
Total No. of Questions : 07
COMPUTER SYSTEM ARCHITECTURE
Subject Code : BC-403
Paper ID : [B0226]
Time : 3 Hrs.
INSTRUCTION TO CANDIDATES :
1. Section-A is compulsory.
2. Attempt any Four questions form Section-B.
a)What is the difference between trap and interrupt?
b) What must the address field of an indexed addressing mode instruction be to make it the same as a register indirect mode instruction?
c) Differentiate between half adder and full adder?
d) Define OP codes.
e) What is Asynchronous data transfer?
f) Define Seek time.
g) Name the various addressing modes?
h) What is the function of accumulator in 8 bit microprocessor?
i) How pipeline helps in a faster execution of an Instruction?
j) What is mapping process?
Section - B
Q2) (a) List the control functions and micro operations needed for the execution of memory
(b) Discuss he various modes of data transfer.
Q3) (a) Detuning the methods to handle branches in a pipeline instruction execution unit.
(b) Explain the interrupt cycle? Draw the flow chart.
Q4) What is a DMA scheme of Data Transfer? Discuss its operating principle. What is cycle stealing mode of data transfer?
Q5) (a) Explain the various page replacement techniques.
(b) What are the various I/O data transfer modes? Differentiate between them?
Q6) (a) Differentiate micro programmed and hardwired control unit?
(b) Discuss the various phases of instruction cycle.
Q7) Explain memory reference instructions in detail.
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