Veer Narmad South Gujarat University 2011-1st Year B.Sc Electronics SB-0624 - 2 ( old ) - Question Paper

SB-0624

First Year B. Sc. Examination March / April - 2011 Electronics : Paper - II (Computer Science) (Microprocessor) (Old Course)

Time : 3 Hours]

Instructions :

(1)

6silq<3i Puunkiufl [qaim SuwiA u* qsq d-onql. Fillup strictly the details of signs on your answer book.

Name of the Examination :

F.Y. B. Sc.

Name of the Subject:

ELECTRONICS - P - 2 (OLD)

-Section No. (1,2,.....): NIL

(2)    All questions are compulsory.

(3)    Assume date if necessary.

(4)    Symbol and abbreviations have their usual meaning.

(5)    Figures to the right indicate full marks.

Answer in brief :

What is microprocessor ?

Explain the difference between a microprocessor and a microcomputer.

List the four operations commonly performed by the MPU

Why the data bus bidirectional ?

Explain the function of ALE signal in 8085 microprocessor.

Explain task of SUB and SUI instruction of 8085. What is subroutines in 8085 ?

Draw the block diagram of digital computer and explain it.

How many instructions are used in logical operation in 8085? Explain with example.

OR

6

(a) Why we use delay loop explain with flow chat and example in 8085? 8 (b) What is meant by opcode explain briefly. OR 6 (a) Write program for find the largest number in given number of block. 8 (b) Explain interrupt of 8085 in brief. 6 (a) Explain all types of flag of 8085. 8 (b) Explain read, write operation in 8085. OR 6 (a) Explain 8079 programmable keyboard/display interface in brief. 8 (b) Write notes on DMA controller 6 Write notes : (any two) 14 (1) Data transfer instruction (2) Importance of indexing in programming (3) 8055A Programmable peripheral interface

(4) Block diagram of 8086.

SB-0624]    2    [ 400 ]

Attachment: veer-narmad-south-gujarat-university-2011-b-sc-electronics-28529-1.pdf

Earning:   Approval pending.