Monday, November 23, 2015

B.C.A Computer Application HPU 2012 Question Paper

Searching for HPU B.C.A Computer Application previous years question papers ? You will here obtain a question paper of B.C.A Computer Application 2012 year. Get it from the contents given under.

University : Himachal Pradesh University
Course : B.C.A Computer Application
Subject : Computer Application
Exam Year : 2012

Note- Attempt five questions in all, selecting one question each from unit 1 to 4. Question number nine is compulsory. All question carry equal marks.

Unit-1
1. What are error detection and correction codes? Explain each one in detail. ? [Marks 20]
2. Why are subtractions using 2s complement used in modern computers? What are the difficulties with BCD or simply binary subtractions? [Marks 20]

Unit-2
3. Explain the execution of an instruction with diagram. ? [Marks 20]
4. Draw a circuit of binary adder and subtractor and also discuss its working. ? [Marks 20]

Unit-3
5. Explain register stack operation in detail. ? [Marks 20]
6. Explain various addressing modes in modern processors. ? [Marks 20]

Unit-4
7. Explain the working of RAM and ROM chips. ? [Marks 20]
8. What is a DMA scheme of data transfer? Discuss its operating principle. ? [Marks 20]

Unit-5
9. Explain the following terms:
a) Auto increment mode of addressing
b) Hardwired control
c) Micro-operation
d) Selective complement. ? [Marks 20]

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