SEM 1 BCA SUMMER 2014 SOLVED ASSIGNMENTS

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SEM 1 BCA SUMMER 2014 ASSIGNMENTS

BCA1010– Fundamentals of IT& Programming

1. Write a note on the following

a) Optical Character Readers (OCR)

b) Magnetic Ink Character Reader (MICR)

2. Explain the two types of terminals used with mainframe systems?

3. What is the function of the following

a) Application software

b) Programming software

4. List any five characteristics of an object-oriented design (OOD).

5. List the five major activities of an operating system in regard to process management.

BCA1020- PROGRAMMING IN C

1. Explain the history of C language. What are the advantages of C language?

2. Write short notes on:

a) scanf()

b) printf()

3. Describe about static and external variables.

4. Distinguish between pass by value and pass by reference with the help of an example.

5. Define macro. How we can declare a macro statement? Explain with an example.

6. What is the use of fopen () and fclose () function? List and explain different modes for opening a file.

BCA 1030- BASIC MATHEMATICS

1. (i) Let A = {1, 2, 3, 4, 5, 6} and B = {2, 4, 6, 8}. Find A – B and B – A.

(ii) In a group of 50 people, 35 speak Hindi, 25 speak both English and Hindi and all the people speak at least one of the two languages. How many people speak only English and not Hindi ? How many people speak English?

2. (i) Express 792° in radians and (7p/12)c in degrees

(ii) Prove that (tanq + secq – 1)/(tanq – secq + 1) = cosq/(1- sinq ) = (1+ sinq)/ cosq

3 (i) Define continuity of a point

(ii) Test the continuity of the function f where f is defined by

F(x) = ((X-2)/|(X-2)| if x ¹ 2

( 7 if x = 2

4. Solve dy/dx = (y+x-2)/(y-x-4)

5. A bag contains two red balls, three blue balls and five green balls. Three balls are drawn at random. Find the probability that

a) the three balls are of different colours

b) two balls are of the same colour

c) all the three are of the same colour.

6. Solve: 2x + 3y + 4z = 20, x + y + 2z = 9, 3x + 2y + z = 10

BCA1040/IMC1040- DIGITAL LOGIC

1 Add the following 8-bit binary numbers

i. (01001110)2 + (00111100)2

ii. (10011101)2 + (10001111)2

2 Explain the rules for simplifying functions using Karnaugh maps.

3 Expand the following Boolean functions into their canonical form:

i. f(X,Y,Z)=XY+YZ+ X Z+ X Y

ii. f(X,Y,Z)=XY+ X Y + X YZ

4 .Simplify the following Boolean function:

F = A’C + A’B + AB’C + BC, using K-map?

5. What are sequential circuits? Explain differences between sequential circuits and combinational circuits.

6. What is difference between Ring counter and Johson counter?