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01/04/2023

IGNOU BCA MCA MCS-014 term-end exam notes, upcoming guess papers, important questions free download

IGNOU BCA 3rd and MCA 1st semester MCS 014 term-end exam notes, important question, old previous year questions paper with solution, study material download. All semester new revised (1st semester, 2nd semester, 3rd semester, 4th semester, 5th semester and 6th semester) solved assignments, term-end exam notes, study materials, important questions, books/blocks (June-December) free download.

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IGNOU BCA, MCA MCS 014 term-end exam notes with solution download
Lesion	Topic
Chapter - 1	System
Chapter - 2	System Analysis
Chapter - 3	System Design
Chapter - 4	File and Database Design
Chapter - 5	Testing
Chapter - 6	System and Case Tools
Chapter - 7	SRS and Audit Trail
Chapter - 8	E-R Model and DFD
Chapter - 9	Solved Old Term-End Exam Papers (June 2014 to June 2019)
Chapter - 10	Sample Question Set
Download

Notes-1

1. (a) What is the role of a system analyst in system development ? Explain any six attributes of a good system analyst.

(b) What is modularity ? How can modularity in design be achieved ? Explain the advantages of modular design.

(d) What is the need of feasibility study of an information system ? Explain the different operational feasibility issues of a system.

(e) What is database design ? Explain the different issues involved in the designing of a database.

2. (a) What is cost and effort estimation.? Give a brief explanation of any cost and effort estimation model.

(b) What is decision table ? Design a decision table for Library Management System.Make appropriate assumptions.

3. (a) What is DFD ? Draw a DFD (0 and 1 level) for Online Admission System to offer online

admission to graduate and post graduate students of a university.

(b) Explain the steps and activities in the testing and maintenance phases of SDLC.

4. (a) What is Decision Support System (DSS) ? What are its basic characteristics ? Briefly

explain the various components of DSS,with the help of a diagram.

(b) Draw the object interaction diagram for a system of your choice.

5. Write short notes on the following :

(a) Software Quality Assurance

(b) CASE Tools

(d) Software Documentation

Notes-2

1. (a) Draw a 0-level and 1-level DFD of a library information system. Make necessary assumptions.

(b) Explain the term 'Feasibility study'. Explain the categories of feasibility with suitable examples.

(c) Explain waterfall model with the help of a diagram. How is it different from spiral model ? Explain the merits and demerits of both the models.

(d) Differentiate between various types of file organisations.

(e) Explain the term MIS. Explain the components of a transaction processing system with suitable diagram.

2. (a) Construct an Entity Relationship diagram for an airlines reservation system.

(b) What is meant by the term CASE ? Describe the various components and tools of CASE.

3. (a) What is the relevance of an Information Security Architecture in MIS ? Draw its diagram.

(b) Differentiate between System Analysis andSystem Design. What are the issues and constraints to be taken care of while designing a software product ?

4. (a) Prepare SRS for a "University admission system". Make necessary assumptions.

(b) Differentiate between coupling and cohesion. Explain the various types of coupling.

5. (a) What are the essential criteria for form design and report design ? Explain.

(b) Explain software maintenance and differentiate between various types of software maintenance.

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bca/mca term-end exam notes 16:38:00

IGNOU MCS-024 term-end exam notes, upcoming guess papers, important questions free download

IGNOU BCA forth semester, MCA second semester, PGDCA MCS-024 term-end exam notes, upcoming guess papers, important questions, questions papers, important questions and old/previous year paper, questions with solutions free download. IGNOU BCA/MCA all semester new revised (1st semester, 2nd semester, 3rd semester, 4th semester, 5th semester and 6th semester) term-end exam notes, study materials, important questions, books/blocks, previous years paper, upcoming guess paper (June-December) free download.

IGNOU BCA/MCA MCS-024 term-end exam notes,upcoming guess papers,important questions free download

IGNOU BCA, MCA, PGDCA MCS-024 Term-End Examination (OBJECT ORIENTED

TECHNOLOGIES AND JAVA PROGRAMMING) books/block, term-end exam notes, upcoming guess paper, important questions, study materials, previous year papers download.

S. No.	Topic with Solutions
1.	Basic Concepts
2.	Controls and Arrays
3.	Inheritance and Polymorphic
4.	Packages, Interfaces and Exception
5.	Multi threaded Programming
6.	Applet and Events
7.	Networking And JDBC
8.	File Handling and String
9.	Differentiation
10	Term Definition
11.	Programs
12.	Old/Previous years papers with solutions (June 2014 to Dec 2018)
13.	Guess Questions
	Download

Notes-1

1. (a) What is object oriented programming ? How is it different from structured programming ? Explain advantages of using object oriented programming.

(b) Explain why is Java called platform independent language ?

(d) What is Java applet ? How is it different from Java application program ?

(e) Explain any five interfaces of the Java IO package.

(f) What is Exception ? Explain how exceptions are handled in Java. Write a Queue class that throws an exception when the Queue is full. Display exception message as "Queue is full".

(g) Explain the Java RMI architcuture with the help of a diagram.

2. (a) What is multithreading ? Explain the steps for creating thread in Java. Also, explain different predefined thread priorities in Java.

(b) Write a Java Program which takes two 3 x 3 matrices as input and find sum of the two matrices ? Define constructor for initializing matrix objects.

3. (a) Write a Java program that reads the contents of a text file and counts the number of white spaces, number of characters,number of words, number of semicolons in the contents. Print the output of program on standard output.

(b) Write a Java program to find factorial of a number.

4. (a) Write a Java program to setup JDBC and execute an SQL statement on a database table 'BOOK', with the fields BOOK_ISBN,BOOK_AUTH, BOOK_PRICE, BOOK_PUBL.

The SQL statement should find the BOOK_AUTH and BOOK_PRICE of the Book having ISBN = 235001.

(b) What is Polymorphism ? Explain advantage of polymorphism with an example of managing different types of Bank Accounts.

5. (a) What is Java Bean ? Explain its advantages.

(b) What is String Class in Java ? Write a program to insert a substring in the middle of a string. (Do not use methods of string class)

(d) Differentiate between overloading and overriding with the help of suitable example.

Notes-2

1. (a) Define the concept of inheritance. Explain the advantage of inheritance with the help of an example.

(b) What is classpath ? Explain the use of classpath in Java programming.

Explain with an example.

(d) What is an event in GUI programming ? Explain different components of an event.

(e) What is inner class ? Explain whether inner class is secure and useful. Justify your answer.

(f) What is final keyword ? Explain different uses of final in Java.

(g) What is exception ? Explain difference between checked and unchecked exceptions with an example of each.

2. (a) Differentiate the following, with the help of example :

(i) Application and Applet

(ii) Structure Approach and Object Oriented Approach

(iii) String and String Buffer

(iv) Abstract Class and Interface

(b) Write a class complex to represent complex numbers, with suitable constructor and function to find the sum of two complex numbers.

3. (a) What is StreamTokenizer ? Explain the different instance variables defined in StreamTokenizer. Also, explain use of StreamTokenizer with the help of an example.

(b) "Java is architecture neutral, secure and distributed programming language."Justify the statement.

(c) What is private access specifier ? Explain with an example, how it is different from public and protected access specifiers.

4. (a) What is finalize( ) method in Java. Give an example to demonstrate its use.
(b) Define package in Java. Explain the need of 'user created package' in Java. Also,explain the procedure of creating a package in Java.
(c) What is the difference between throw and throws keywords used in Java ? Explain with an example.
(d) Explain use of super keyword in Java, with an example.

5. (a) What is stateless protocol ? Is HTTP a stateless protocol ? What are the various ways through which you can maintain the `State' while using HTTP ?
(b) Differentiate between TCP client and TCP server socket with the help of an example.
(c) What is RMI ? Explain advantages of using RMI.

(d) Briefly explain the life cycle of a servlet.

Notes-3

1. (a) What is Class ? How does it accomplish Data Hiding ? Explain with an example.
(b) State any three differences between AWT and Swing components.
(c) Explain the concept of Inheritance and Polymorphism with an example of each.
(d) What do you mean by serialization ? What is the common usage of serialization ?
(e) What are cookies and session variables and where do we use them ?
(f) Write a Java program to read text from keyboard and write it to a file called `MyText.txt'.
(g) Explain any five basic features of Java in brief.

2. (a) Differentiate between the following terms with examples :
(i) Structured Programming and Object Oriented Programming
(ii) Data Abstraction and Encapsulation
(iii) length and length( )
(iv) Class and Object
(b) What are the two methods to create threads ? Explain them with a suitable example.

3. (a) What is RMI ? How can you create stub and skeleton ? Write the steps involved.
(b) Write a program to read the content of the file `MyDoc.doc' and display it on console.
(c) What is exception ? Explain the basic causes of exception. Write a Java program to explain how exceptions are handled.

4. (a) Write a Java program to create a Shape class. Derive Circle and Square classes from it. Define constructor for these three classes.
(b) Explain the different steps in the life cycle of an applet.
(c) What is a package ? Develop a Java package with simple queue and stack class.

5. (a) What is Servlet ? Explain how session handling is performed in Servlet programming.
(b) What is an Interface ? Write a Java program to show how a class implements two interfaces.
(c) What is String class ? How is it different from StringBuffer class ? Write a Java program to find the length of a given string.

IGNOU BCA/MCA MCS-024 Term-End Examination (OBJECT ORIENTED

TECHNOLOGIES AND JAVA PROGRAMMING) term-end exam notes Download

Also available:-

BCA all semester new solved assignments Download

BCA all semester new revised books/blocks,study materials Download

MCA all semester new solved assignments Download

MCA all semester new revised books/blocks, study materials Download

BCA all semester term-end exam notes, important questions, guess papers (june-december) Download

MCA all semester term-end exam notes, important questions, guess papers (june-december) Download

BCA/MCA asp.net project Download

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bca/mca term-end exam notes 11:43:00

IGNOU BCA MCA MCS-012 term-end exam notes, upcoming guess paper important questions free downloads

IGNOU BCA second, MCA first semester MCS 012 term-end exam notes, upcoming guess paper, important question, exam study materials, most questions, old previous question paper with solution download and get excellent result. BCA MCA and PGDCA all semester new revised (1st semester, 2nd semester, 3rd semester, 4th semester, 5th semester and 6th semester) solved assignments,term-end exam notes, study materials, important questions, books/blocks, solved assignments (June-December) free download.

IGNOU BCA MCA PGDCA MCS-012 1st and 2nd semester Term-End Examination (Computer Organization and Assembly Language Programming) term-end exam notes,upcoming guess papers, book/blocks, important questions, study materials download.

MCS 012 Term-End exam notes and study materials with solutions
Lesion	Topic
Chapter: 1	The Basic Computer
Chapter: 2	The Representation
Chapter: 3	Logic circuit -1
Chapter: 4	Logic circuit- 2
Chapter: 5	Memory system
Chapter: 6	I/O technology
Chapter: 7	Instruction set and micro-operation
Chapter: 8	CPU, ALU, CU and RISE
Chapter: 9	Difference
Chapter: 10	Assembly language
Chapter: 11	Assembly language program
Chapter: 12	Short notes
Chapter: 13	Previous years solved question papers: June 2012, June 2014, June 2015, June 2016, December 2016, June 2017, December 2017, June 2018, December 2018, June 2019
Chapter: 14	Sample question set
	Download

Notes-1

1. (a) Add the following using 8 bit signed 2's complement representation :

(i) 25 and - 40

(ii) 75 and 80

(b) (i) How many errors correcting bits are required to send an 8 bit data using SEC code ?

(ii) If a 4 bit data 1010 is received as 1011,how this error, at bit position b1 can be detected ?

F (A,B,C,D) =1:(0,2,4,6,7,8,10).

(d) A computer supports a virtual memory of 1 Giga Byte and physical memory of 64 Mega Bytes. How many bits are needed to address the

(i) virtual memory

(ii) physical memory

(e) Consider two registers R1 and R2 having the following 4-bit binary values :

R1 = 1100

R2 =1010

Perform the following operations on R1 using R2.

(i) Selective set

(ii) Selective clear

(iii) Selective complement

(iv) Mask operation

(f) Compare the following :

(i) RAM Vs ROM

(ii) DRAM Vs SRAM

(g) Write an 8086 Assembly Language Program to add 2 byte sized values stored in memory locations FIRST and SECOND, and store the result in location SUM.

2. (a) Differentiate the following :

(i) Hardwired control unit Vs Micro-programmed control unit.

(ii) Unencoded micro-instructions Vs encoded micro-instructions.

(b) A computer has a 64 word RAM (1 word =16 bits) and a cache memory of 8 blocks (block size = 32 bits). Find the main memory word 25 in cache if :

(i) Direct mapping is used

(ii) Associative mapping is used

(iii) 2-way set associative (2 blocks per set) mapping is used.

3. (a) Explain the following techniques for I/O operation :

(i) Programmed I/O

(ii) Interrupt driven I/O

(b) Explain the following terms with respect to hard disks.

(i) Access time

(ii) Bandwidth

(iii) Rotation speed

4. (a) Explain the following Addressing modes in Assembly language programming with the help of an example each.

(i) Register Addressing

(ii) Indirect Addressing

(iii) Relative Addressing

(b) List five important characteristics of RISC Architecture.

5. (a) Write an assembly language program using 8086 assembly language to find the length of a string. Make suitable assumptions.

(b) Explain the following terms, giving an example/ diagram, if needed

(i) Flip-flop

(ii) Register

(iii) Single precision floating point representation

(iv) Multiplexer

(v) Assembler

(vi) Int 21 h

(vii) Fetch cycle.

Notes-2

(a) IEEE floating point representation for single precision number uses the format as :

Sign bit (1 bit) Biased exponent (8 bits) Significant (23 bits) In this representation a floating point

number where 0 < E < 255 having any significant bits is equivalent to ± (1 . N) 2 (E -127) Using this format represent the following decimal numbers :

(i) 0.375

(ii) 7

Now using the representation perform the following operations :

(i) 0.250 x 7

(ii) 0.375 + 7

b) Explain the basic characteristics of RAID Level 3 and 4 disks.(5)

c) Give block diagram of DMA controller. How does CPU initialize the DMA transfer?

d) What is bus arbitration? Explain the Daisy Chaining and Polling schemes with the help of diagram for

each.

e) Explain four differences between vertical and horizontal microinstruction formats.

f) Explain the following Data transfer instructions of 8086 with the help of an example for each:

(1) XLAT, POP, LDD, AAS, CMP

g) Write a program for evaluating A + B * C – D/E using 2 and 3 address machine instructions.

a) Simplify the following Boolean function using SOP form, using K-Map. F(A,B,C,D)=Σ(5,8,10,12,13,14).

b) Explain the Hamming Error Correcting Code method for detecting and correcting single bit error in the

data, with the help of an example.

c) What are Micro Operations? Explain the four types of micro operations in digital computers.

a) Design 4 way interleaved memory.

b) Differentiate between RISC and CISC.

c) What is an arithmetic processor? Compare the co-processor with peripheral processors

a) The 8-bit registers, initially have the following values:

AR = 10110110 BR = 10010101

CR = 11100101 DR = 00111010

Determine the values in each register after the execution of the following sequence of micro-operations.

i) AR ← AR ۸ BR

ii) BR ← CR (XOR) DR

iii) DR ← DR - CR

iv) CR ← AR + DR

Draw the logic

b) Diagram of a 3-bit ripple counter and explain its functioning.

c) Define the IEEE 754 floating point number standard giving the single and double precision floating point

number bits layout and bias of exponent. Also show an example each of addition and subtraction of two

floating point numbers.

5) Explain the following

a) Master-Slave flip flop using J-k flip flop

b) Wilkes control

c) Instruction pipelining.

d) Virtual memory

MCS-012 Term-end Exam Important notes, Upcoming guess questions/papers, Old papers, Previous papers (With Solution) Download

Notes-3

a. Explain four differences between vertical and horizontal microinstruction formats

b. Write an 8086 assembly language program that adds two two-digit unpacked BCD numbers.

c. Perform the following arithmetic operations on 8-bit numbers using 2’s complement notation. Indicate overflow / underflow, if any:

(i) -48-57 (ii) -75+48 (iii) 76-(-38) (iv) 96-88

d. Find the physical address of following segment: offset-

i. SS:SP = 0100:0020h

ii. DS:BX = 0200:0100h

iii. CS :IP = 4200h:0123h

e. Write an 8086 assembly language program for adding an array of binary numbers.

f. What are decoders? Depict the logic diagram and truth table of a 3x8 decoder.

g. Represent the following numbers using IEEE 32-bit floating point format :

(i) 5.73 x 10-11

a. What is assembler? Explain Function of Two pass Assembler.

b. The register of processor has following values :[10]

A L = 0011 0011 B L = 1100 1100 C L = 1111 1111 D L = 0000 0111 What will be the value of various registers after following operation are performed:

i. Mask AL with DL

ii. Increment CL

iii. Selective set BL using DL

iv. Shift Arithmetic left DL

v. Add AL and BL and store result in AL

b. Write three differences between following

 Associative and set associative mapping in cache.

 Master slave flip flop and simple RS flip flop.

 Magnetic disk and CD-ROM.

a. Design a Flowchart for Programmed I\O & interrupt Driven I|O.

b. Discuss the microcode for Instruction cycle.

c. What is an Interrupt? Explain the step-by-step procedure to process can interrupt.

a. Write an 8086 assembly language program to computer the factorial of a number.

b. Differentiate between .COM and .EXE program.

c. Design and draw a 8 x 1 multiplexer using AND and OR gates and explain its working.

a. Explain any five addressing modes with examples.

b. Explain the instruction pipeline using an illustration. What are the various problems faced by instruction pipeline?

c. Explain the working of an ALU with the help of a diagram.

a. How are the problems in S-R flip flop removed in J-K flip flop? Explain the working of JK flip flop with the help of logic diagram and characteristics table.

b. What are the advantages of using large register file in these machines?

c. Explain the following:-

i. Resolution

ii. ALL and RETN

iii. Register indirect

iv. INT21h

Notes-4

a. Write 8086 program sort given five numbers in ascending order. Also Explain Any Two Directives of 8086 Architecture.

b. Explain the following 8086 microprocessor addressing modes with the help of an example each :

(i) Direct (ii) Register indirect (iii) Indexed

c. Differentiate between Wilkes and hardwired control unit.

d. Compare the characteristics of unencoded micro-instructions to that of highly encoded micro-instructions.

e. A 4 bit data 1010 is received as 1011, how this error, at bit position b1 can be detected?

f. Simplify the following expression in SOP form using a K-map. F(A,B,C,D)=AB + BC + AD:

g. Design 4 bit arithmetic circuit using decoders and full adders.

h. Find the length of a SEC code and a SEC-DED Code for a 16 bit word data transfer.

a. A combinational circuit takes four bit input and output an odd parity bit for the input bits. For example, if input is 0001, the output is 0 as the number l's in the input string is odd; whereas for an input 0101, it output 1.

i. Draw the truth table for the proposed circuit.

ii. Use K-map to find the optimal expression for the output.

iii. Draw the resultant circuit using AND-OR-NOT gates.

b. Consider the register R1 has the value 01011010. Choose register R2 values to perform following operations on register Rl.

(i) Mark the upper four bits of R1 (ii) Insert the value 1100 as the upper four bits of R1 (iii) Clear R1 register (iv) Complement the lower four bits of R1.

a. Design Four bit Synchronous and Asynchronous Counter.

b. Explain SIMM and DIMM.

c. What is device driver? Differentiate between device controllers and device drivers.

a. Explain Function of I\O Interface.

b. Design a circuit of RAM of 128 X 8 sizes.

c. Write characteristics of RAID Level 1 and Level 3

5. Write Short notes on Followings:-

a. PLA

b. Flash Memory

c. FAT and Inode

d. Associative Memory

IGNOU BCA, MCA, PGDCA MCS-012 1st semester, 2nd semester Term-End Examination (Computer Organization and Assembly Language Programming) Download

Also available:-

BCA all semester new solved assignments Download

BCA all semester new revised books/blocks, study materials Download

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MCA all semester new revised books/blocks, study materials Download

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MCA all semester term-end exam notes, important questions, guess papers (june-december) Download

BCA/MCA asp.net project Download

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