University of Mumbai 2006 B.A Economics Computer Systems and Applications - Question Paper

Computer Systems and Applications
April 2006
Time: three HoursMarks: 100
NB:
Attempt either Part A or Part B. ques. no. one is compulsory.
In part I, attempt any 2 ques. from ques. Nos. two to five
In part 11, attempt any 2 ques. from ques. Nos. six to nine
All ans should be written in the identical answer-book.
Figures to right indicate maximum marks. All ques. carry equal marks
PART A
Q.1 (a) ans the subsequent in 1 sentence three

(i) What is the use of RAM?
(ii) State 1 difference ranging from DOS and WINDOWS.
(iii) provide full form of HTTP.
(b) ans the subsequent in C:

(i) elaborate the uses of getchar() and putchar() ? two
(ii) elaborate the various kinds of storage class specifiers in C.? two
(iii) provide 1 example of logical operator in C. one
(c) State whether the subsequent are actual or false: - three

(i) DOS is multitasking Operating System.
(ii) In MS-WORD menu bar is always displayed while editing a document.
(iii) In MS-WORD, PAGE SETUP choice allows you to add page number to a document.
(d) ans the subsequent in FoxPro:
(i) discuss the use of. - three
(I) MOD ()
(II)RECNO ()
(III)DTOC( )
(ii) discuss the following: - two
LOCATE (11) SET DELETED ON/OFF
part I
Q.2 (a) discuss briefly about the following: - six
(i) HARD DISK
(ii) WEBSITES
(iii) WAN
(b) What is the output of the subsequent C program: - four
#define g(x) x> 10? 20-x: x*x
main( )
{int a=3, b=7,c= 11;
b+=a++;
a*=2;
c+=g(a);
b+=g(c);
printf ("%4d%4d%4d\n",a,b,c);}

(c) A wholesaler provide discount on the basis of order amount as follows:-
1st Rs. 8000 nbsp; 10% discount
Next Rs. 20000 20% discount
Excess 30% discount
Write a program in C to input customer name and order amount and print customer name, order amount and discount.
Q.3 (a) ans in 1 or 2 lines the uses of six
(i) MODEM
(ii) LAN
(iii)SEARCH ENGINES
(b) What does the subsequent C program print? eight

main()
{int k=O,t=O;
for(k= l; k<=l0; k+=3)
{if(k%2= =1) t+=k; else t - -;
printff"%3d",t); }}

(c) Write a program in C to input 10 observations and obtain and print mean and mean deviation from mean six

Earning:   Approval pending.