Roll No. .................
Total No. of Questions : 07
B.Sc. (IT)
(Sem.–4)
MICROPROCESSOR
SYSTEM
Subject Code :
BS-206
Paper ID : [B0415]
Time : 3 Hrs.
INSTRUCTION TO CANDIDATES :
1 . SECTION-A is COMPULSORY.
2 . Attempt any FOUR questions from SECTION-B.
SECTION-A
l. Write short notes on :
(a) Explain the role of
microprocessor in a microprocessor based system.
(b) Explain ‘instruction cycle’ and
‘machine cycle’.
(c) How RAM is different from ROM?
(d) Explain the role of general
purpose registers in 8085.
(e) What is assembler?
(f) What are the different flags in
8085 ?
(g) Convert (10110)2 into decimal
format.
(h) Discuss the role of opcode and
operands.
(i) Write the I/O instructions of
8085.
(j ) Write an instruction for
setting the SP at 2010 H.
SECTION-B
2. What is ROM? Explain the different types of ROM.
3. Explain the architecture of 8085 with the help of a
labeled diagram.
4. Explain the purpose of stack and hardware interrupts.
Discuss how stack is operated?
5. Explain the various addressing modes of 8085.
6. Write an assembly language program to get the smallest
number in a data array.
7. Explain SIM and RIM instructions.
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