Bangalore University 2005 B.C.A Computer Application System Software - exam paper

IV Sem B.C.A
April/May 2005
System Software
Time:3 Hours
Max. Marks: 80
part - A
ans any 8 of the questions (8x3 = 24)

1. What is system software'? Distinguish ranging from compiler and interpreter.

2. discuss Address modification using Index Registers.

3. discuss.
i) Memory Buffer Register
ii) Instruction Interpreter
iii) Location counter.

4. discuss 3 types of Assembly language statements.

5. What is Mnemonic Table? Specify its format.

6. Differentiate ranging from macros and subroutines.

7. Differentiate ranging from absolute loaders and relocating loaders.

8. What is a Binder? What is dynamic binding?

9. elaborate the 3 classes of Uniform symbols?

10. discuss Code Generation phase of compiler

parts - B
Answer any 4 questions: (4x14=56)

11. a) discuss the different registers and data format used by IBM 360/370.
b) What is Pseudo-up? Explain
i) Using
ii) Bair
iii) Start
12. a) discuss overview of assembly process.
b) provide the one-pass assembler algorithm.

13. a) discuss conditional macro expansion with an example.
b) elaborate the tasks performed by any macro instruction processor?
14. a) elaborate the basic functions of a loader?
b) discuss the general loader scheme with an example.

15. discuss the various Passes of a compiler with a diagram.

16.Write short notes on:
a) Machine Independent Optimization
b) System Software Components.
c) Assembler Directives

Earning:   Approval pending.