Periyar University 2008 B.Com Computer Science FUNDAMENTALS OF COMPUTER AND COBOL - Question Paper

B.Com. DEGREE EXAMINATION, APRIL/MAY 2008.
Second Semester
Computer Applications
FUNDAMENTALS OF COMPUTER AND COBOL
Time : 3 hours Maximum : 100 marks
PART A — (10 x two = 20 marks) ans ALL ques..
1. What are the 2 principal characteristics of a computer?
2. Name the various kinds of memory.
3. What is system software? provide an example.
4. List out the functions performed by a protocol.
5. What is literal? provide an example.
6. Give the general form of DIVIDE verb.
7. List out any 2 rules followed in sign condition
8. Consider the subsequent COBOL statement using the SORT verb
the SORT verb.
SORT FILE-IN ON ASCENDING KEY DEPARTMENT BASIC-PAY USING FILE-A GIVING FILE-B.
(a) Which is the major key field?
(b) What is the name of the final sorted file?

9. Write a note on SYNCHRONIZED clause.
10. What is direct access file?
PART B — (5 x four = 20 marks) ans ALL ques..
11. (a) discuss various kinds of video standards.
Or (b) Narrate different kinds of magnetic tapes.
12. (a) Write short notes on image processors.
Or (b) What is compiler? discuss the compiler process.
13. (a) What is figurative constant? discuss different
kinds of figurative constants.
Or
(b) discuss the difference ranging from ROUNDED and ON-SIZE fault choices with an example.
14. (a)^ What is level number? discuss its kinds.
Or
(b) Differentiate ranging from RENAMES and REDEFINES clauses.
15. (a) List out any 5 rules used in SORT verb.
Or
(b) Write short notes on INVALID KEY condition with respect to direct access file.
PART C —- (5 x 12 = 60 marks) ans ALL ques..
16. (a) define classification of digital computer
systems in detail.
Or (b) discuss different categories of printers in detail.
17. (a) explain different generations of languages.
Or
(b) (i) discuss briefly any three internet
protocols. Co).
(ii) Write short notes on e-mail. (6)
18. (a) What is editing? discuss different edited
PICTURES clauses known to you with examples.
Or
(b) (i) discuss the structure of COBOL. (6)
(ii) With examples, discuss MULTIPLY
and calculate verbs. (6)
19. (a) (i) Consider the table of conditions beneath :
volume PRICE RATING DiscOUNT
>100 >10 <2 0.05
> 100 > 10 > 2 0.10
> 100 < 10 < 2 0.15
> 100 < 10 >.2 0.20 < 100 f< "I f < \ 0.25
Write instructions in COBOL using nested if to MOVE to DiscOUNT the value shown depending on
the conditions. (6)
(ii) Write short notes on condition-name
condition. (6)
Or
(b) (i) discuss any 4 forms of PERFORM
verb. (6)
(ii) A worker is paid overtime hours at a rate which is twice the normal rate. The hours worked in excess of 48 hours in a week is considered to be the overtime hours.
Write COBOL statements to calculate the
total wages of a worker assuming that the fields RATE
and WEEKLY-HOURS respectively contain the normal
rate and total hours worked in a week. The wages
should be ROUNDED OFF. (6)
20. (a) explain sequential file in detail.
Or
(b) The current telephone directory has names, address and telephone numbers of 50 subscribers. New telephone connections have been provided to 10 persons. The new telephone directory containing about all the 60 subscribers is needed. Write a COBOL program to do the above.

Earning:   Approval pending.