SEM 1 BCA SUMMER 2014 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?

SEM 3 BCA SUMMER 2014 ASSIGNMENTS

BCA3010 -COMPUTER ORIENTED NUMERICAL METHODS

1 Solve the system of equation by matrix inversion method

x +y +z = 1

x +2y + 3z = 6

x + 3y +4z = 6

10 10

2. Find all eigen values and the corresponding eigen vectors of the matrix

A = I 8  - 6     2 I

       I 6     7     4 I

       I 2     4     3 I

3. Find the cubic polynomial which takes the following values y(0) = 1, y(1) = 0, y(2) = 1 and y(3) = 10. Hence or otherwise, obtain y (0.5).

4. Find the approximate value of ò p/2,0 √ cos q dq by Simpson’s 1/3^rd rule by dividing [0, p/2] into 6 equal parts.

5. Use Picard’s method of successive approximations to find y1,y2, y3 to the solution of the initial value problem ��′ = ����/���� = ��, given that y =2 for x = 0. Use y3 to estimate the value of y (0.8).

6. Solve x y² + y = 0, y ¢ (1) = 0, y(2) = 1, h = 1/2

BCA3020 – Data Base Management System(DBMS)

1 Explain the functions of the following

(a) Entities

(b) Attributes

(c) Relationships

2 Write the functions of the following

(a) Storage Manager

(b) Buffer Manager

3 List and explain the important responsibilities of database manager.

4 Explain the Sequential File Organization with the help of diagrams.

5 Explain basic operations of Relational algebra?

6 What are the disadvantages of Data Distribution

7 Write a note on the following

a) SUBSET Mapping

b) SUPERSET Mapping

BCA3030 -UNDERSTANDING PC & TROUBLE SHOOTING

1 Differentiate CISC with RISC.

2 Explain about the Sockets and slots of the Motherboard.

3 Define the following

a. Front Sided Bus

b. Dual Independent Bus

4 What are the advantages and disadvantages of switching power circuit?

5 Discuss any five guidelines that we need to follow while troubleshooting the hardware problem.

6 Explain DirectX.

BCA 3040– DATA COMMUNICATION

1 What is Transmission Impairments? Briefly explain the problems challenged by Transmission lines.

2 Briefly explain the communication channel with an example.

3 What is modulation? Explain why modulation is required?

4 Briefly explain Guided Transmission Media and its types.

5 Briefly explain Nyquist theorem with mathematical representation.

6 What is Congestion control? How Backpressure is capable of controlling Congestion.

BCA3050 – Soft Skill - Personality Development

1 (a) Explain any two personality characteristics in an organization

(b) Explain the POSEC method of time management

2 Why are goals important? Why should they be SMART?

3 (a) How does Jung explain the traits of personality?

(b) What is self-image? How is it created?