SKR Engineering College 2007 B.E Computer Science System Software - Question Paper

S.K.R Engineering College
Department of Computer Science and Engineering
Model examination
Semester : III Time: 180 minutes
Subject Name: System Software

Part-A 2*10=20
1. Name the components of system software.
2. Write any 3 registers of the SIC?
3. Mention the features of assembly language that simplifies programming.
4. Mention the types of assembly program.
5. What are tables created by the assembler
6. Mention the use of dynamic linking.
7. What is the difference ranging from linkage editors and linking loaders?
8. What is a pre-processor?
9. Write the structure of the ARGTAB.
10. Name a few optimizations followed in an editor.
Part-B 16*5=80
1. a) Write short notes on :
i. Data formats and instruction formats.
ii. I/O programming
(or)
b) Write about addressing modes of SIC./XE.


2. a) discuss the necessity of 1 pass and multi pass assembler.
(or)
b) List the tables and data structures used in a 2 pass assembler .Explain briefly.


3. a) explain the basic loader functions and design relocatable loader
(or)
b) discuss in detail how linkage editors are implemented in different machines. Differentiate linkage editors

4. a) i) discuss recursive Macro expansion in detail.
ii)Explain conditional Macro expansion
(or)
b) i) describe concatenation of macro parameters.
ii) With suitable example discuss macro processor design choices in detail.

5. a) With neat diagram , discuss the various components of an editor structure.
(or)
b) How are interfaces are useful? discuss.
-All the Best-

Earning:   Approval pending.