Wednesday 26 January 2022

bca muj 1 sem solved assignments 2022

 

SESSION

JUL/AUG 2021

PROGRAM

BACHELOR OF COMPUTER APPLICATIONS (BCA)

SEMESTER

I

COURSE CODE & NAME

DCA1101 – FUNDAMENTALS OF IT & PROGRAMMING

Q.1 (a) Define the term ‘Computer’? 

        (b) Explain the organization of computer?

A computer is a device that receives information (in the form of digitalized data) and manipulates it for some result based on a program or sequence of instructions on how the data is to be

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Q.2 Discuss the different classifications of computer?

Computers are classified according to their data processing speed, amount of data that they can hold and price. Generally, a computer with high processing speed and large internal storage is called a big computer.

 

Q. 3 Explain Random Access Memory and Read Only Memory along with their types?

Random Access Memory (RAM)

Main memory of a computer system is used to store programs and data. RAM provides temporary read/write storage while hard disks offer semipermanent storage. All programs must be run through

 

Q. 4 (a) Define Software Testing.

        (b) Explain software testing strategy in detail.

Software Testing is the process of executing a program or system with the intent of finding errors. Testing presents a stimulating variance for the software engineer. During earlier software engineering

 

Q.5 (a) What is Operating System?

       (b) Discuss the different components of Operating System.

An operating system (OS) is a platform that controls the implementation of an application program and acts as an interface between the user and computer hardware. The purpose of an OS is to provide

 

Q. 6 (a) Explain Reference OSI Model.

        (b) How is the data transmission done in OSI model?

The layered model that dominated data communications and networking literature before 1990 was the Open Systems Interconnection (OSI) model. Everyone believed that the OSI model would

 

 

INTERNAL ASSIGNMENT SESSION    JUL/AUG 2021

PROGRAM   BCA

SEMESTER I

COURSE CODE & NAME             DCA1104- UNDERSTANDING PC AND TROUBLESHOOTING

 

1. a) Define the CPU Overclocking?

Ans. CPU Overclocking

Though the CPU and microprocessor are used synonymously, in reality CPU is a part of microprocessor. Microprocessor differs from CPU in a few characteristics like instruction set, bandwidth, and clock speed. Clock speed is the measure of number of instruction sets that the microprocessor executes in one second. Speed margining is another name for overclocking. By overclocking you Its Half solved only

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2. a) What is motherboard?

 

Ans. The motherboard is considered to be the ‘heart’ of any PC. It provides you the system resources, supports the core components and handles the systems memory. The whole performance of the PC is judged by the motherboard. This unit will provide you the overall information about motherboards and help you in troubleshooting the problems which arise in the motherboard. The motherboard is referred to as an active backplane because the board consists of chips which run for

 

3. Explain the BIOS Features?

Ans. BIOS or BASIC Input Output System is an electronic program that instructs the computer to start operation. It is a collection of instructions located in the  ROM chip that are designed to manage themselves even when there is disk  failure. BIOS occupy 128KB of upper memory space. UMA is

 

 

Set 2

1. a) Explain how the parallel port works?

Ans. A parallel port consists of three registers:

The data register

The control register

The status register

Address bits A0 to A9 are decoded to determine the active register among the three. –I/OR and –I/OW lines are used to determine whether the signals on the data bus are being read from or written to the specific register. Handshaking signals are bidirectional protocol used between sender

 

2. a) Describe the fundamentals of sound boards?

Fundamentals of Sound Boards

A sound card is also known as an audio card. It is a computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs. Sound cards are very much useful in providing the audio component for multimedia applications such as music composition, editing video or audio, presentation, education, and entertainment (games). Many computers have sound capabilities built in, while others require additional expansion cards to provide for audio capability.

 

 

 

b) Describe the recording, playback, sampling concepts, and role of MIDI?

Recording

Microphone to the sound card to record sound in the computer. Some of the sound cards may not have options to connect a microphone. While purchasing a sound card, you should check whether it is hav

 

3. a) What are plug-and-play devices, exactly?

Ans. Plug and Play (PnP) is a combination of hardware and software support that enables a computer system to recognize and adapt to  hardware  configuration changes with little or no involvement by a user. This feature enables you to add devices to a computer or even remove devices

b) Explain PnP in Windows, Enabling PnP in Linux, and PnP troubleshooting techniques

·         Ans.PnP in Windows

Windows 95 operating system, the technology has evolved dramatically due to OnNow design initiative. OnNow outlines a comprehensive, system-wide approach to controlling system and device configuration and

 

 

SESSION

JUL/AUG 2021

PROGRAM

BACHELOR OF COMPUTER APPLICATIONS (BCA)

SEMESTER

I

COURSE CODE & NAME

DCA1103 – BASIC MATHEMATICS

1a) It is known that in a sports club, there are 1000 registered members. 60% of members play Tennis, 50% of members play Cricket, 70% of members play Football, 20% of members play Tennis and Cricket, 40% of members play Cricket and Football and 30% of members play Football and Tennis. If someone claimed that 20% of members play all three sports, what is your opinion and why? Use inclusion and exclusion principle to provide your opinion)

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Ans

Members playing tennis, P(T)= 60%

Members playing cricket, P(C)= 50%

Members playing football, P(F)= 70%

Members playing tennis and cricket, P(T^C)= 20%

 

2 b) If for a right-angle triangle for the acne angle 0, sin θ = 12/13, find the value cos θ and tan θ and show that

sin^2 + cos^2 = 1

tan^2 + 1 = sec^2

Ans

 

Given:

 

2 c) Find the value of the constant a, for which, the following function f(x) is continuous

Ans

 

3a) Differentiate the following function with respect to the variable .

 

3.b) Evaluate the following definite integral ∫x/√(3 - x) + √x dx

Ans

 

 

 

4 a) The differential equation  (2x ^ 2 + b * y ^ 2) * d * x + cxydy can made exact by multiplying with integrating factor 1/(x ^ 2) Then find the relation between band c.

Ans


Multiplying the differential equation by 1/x2, we get 

It is exact
So, 

 

 

4 b) Find one-fourth roots of unity

X^4=1

X^2= +-1

X^2=1

 

5 A) Solve the following system of equations by using the concept of matrices and determinants.

5x + 7y + 2 =0

 4x + 6y + 3 =0

Ans

5x+7y+2=05x+7y=−2

 

4x+

 

5b) Find whether the following series are convergent or divergent

This is convergent series because denominator is always bigger than numerator so, it will be convergent series.

Sum of Sqrt(n/

 

6a)Bag I contain 3 red and 4 black balls and Bag Il contain 4 red and 5 black balls. One ball is transferred from Bag I to Bag II and then a ball is drawn from Bag II. The ball so drawn is found to be red Find the probability that the transferred ball is black.

Let

 

 

 

 (b) The daily earning of a vendor for a period of 40 days are given. Calculate Standard Deviation and coefficient of variation,

Daily earning

Days(f)

xi

(xi-mean)/9

F1ui

Fiui2

118-126

3

122

-3

-9

27

127-135

8

131

-2

-16

32

136-144

9

140

-1

-9

9

 

SESSION

JUL/AUG 2021

PROGRAM

BCA

SEMESTER

I

COURSE CODE & NAME

DCA1102 - Programming in C

Q. 1 What is the basic structure of C program? Write a program to calculate the area of a circle?

Basic structure of C program

Basic structure of the C program is divided into six different sections:

Documentation section: The Documentation section consists of a set of comment lines.

Link section: The link section provides instruction to the compiler to link the header files or functions from the system Its Half solved only

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Q. 2 What is the use of control statements in C? Explain various control statements in C programming language?

Control statements enable us to specify the flow of program control; ie, the order in which the instructions in a program must be executed. They make it possible to make decisions, to perform tasks

 

Q. 3 What is the purpose of storage class in C? Explain various types of storage class in C?

A storage class defines the scope (visibility) and life-time of variables and/or functions within a C Program. They precede the type that they modify. We have four different storage classes in a C program − Storage Classes are used to describe the features of a variable/function. These features basically include the scope, visibility and life-time which help us to trace the existence of a

Q. 4 What is an array? Explain the declaration and initialization of one and two-dimensional arrays with example.

An array is defined as an ordered set of similar data items. All the data items of an array are stored in consecutive memory locations in RAM. The elements of an array are of same data type and each item can be

 

Q. 5 (a) What is a pointer? How to declare and initialize it?

(b) Write a C program to illustrate the use of indirection operator to access the value pointed by a pointer?

Pointer is a variable used to store the address of another variable or a memory location. It always stores a integer since it shares an address. The pointer in C language is a variable which stores the address of another variable. This variable can be of type int, char, array, function, or any other pointer.

 

Q.6 (a)Define Structure and write the general syntax for declaring and accessing members?

(b) Write a C program to show employee details using structure?

Structure in c is a user-defined data type that enables us to store the collection of different data types. Each element of a structure is called a member. Structures ca; simulate the use of classes and templates as it can

 

 

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