Digital Computer organization M.C.A Model Question Papers : alagappauniversity.ac.in

Name of the University : Alagappa University
Degree : M.C.A
Subject Code/Name : Digital Computer organization
Year : I
Document Type : Model Question Papers
Website : alagappauniversity.ac.in

Download Model/Sample Question Paper : May 2008 : www.pdfquestion.in/uploads/alagappauniversity.ac.in/4089.-MCA(Non-Sem)2001onw.docx

Digital Computer organization :

1 Explain the various complement systems in binary numbers.
2.Explain multiplexer with suitable diagram.
3.Explain the working principle of JK flip-flop.

Related : Alagappa University Lab-III Oracle And Visual Basic B.C.A Model Question Papers : www.pdfquestion.in/4123.html

(b) Describe the working of BCD counter.
4. (a) Explain the shift registers.
(b) Write detail note on Half subtractor.
5. (a) Simplify the following Boolean function in sum of product form by means of 4 variable map. Draw the logic diagram with NAND gates (0, 2, 8, 9, 10, 11, 14, 15)
(b) Write about encoder.
6. (a) Explain the design of accumulator logic with control of AC registers, adder and logic unit.
(b) Describe the need for secondary storage devices.
7. (a) Explain various interrupts and their priorities in micro processors.
(b) Describe the different types of RAM.
8. (a) What is I/O interface? Why we need I/O interface? Explain with an example. (10)
(b) Explain the DMA transfer with the necessary diagrams. (10)

M.C.A. (Ns) Degree Examination, May 2008 :
Principles Of Information Technology :
(2001 and 2002 Batches)
(2001 onwards)
Time : Three hours
Maximum : 100 marks
Answer any FIVE questions.
All question carry equal marks.
1. (a) Explain the developments in computer Technology with suitable examples. (10)
(b) Explain about connectivity and Interactivity. (10)
2. (a) What are the different types of Application software? Explain. (10)
(b) Explain about GUI. (10)
3. (a) Explain speciality software in detail. (10)
(b) What are the advantages of spread sheets? Explain. (10)
4. (a) What is an Internet? Mention the various features of Internet. (10)
(b) Explain the usage of online information services. (10)

5. (a) What are the various types of communication channels? Explain. (10)
(b) Write notes on :
(i) Modulator and Demodulator. (4)
(ii) Tele commuting. (3)
(iii) Picture phone. (3)
6. (a) Explain about secondary storage devices. (10)
(b) What are the different types of files? Explain. (10)
7. (a) What are the advantages and disadvantages of DBMS? Explain. (10)
(b) Explain about Hard disks and their features. (10)
8. (a) Explain about the five generations of programming languages. (10)
(b) Explain about security issues in detail. (10)

M.C.A. (Non-Semester) Degree Examination, May 2008 :
Principles Of Information Technology :
(2001–2003 onwards)
Time : Three hours
Maximum : 100 marks
Answer any FIVE questions.
All questions carry equal marks.
1. (a) Explain the evolution in computers and communications.
(b) Explain the six elements of a computer and communication system.
2. (a) Discuss the areas where the application software are used.
(b) Explain in detail about any one of the application s/w.

3. Explain the following :
(a) Video conferencing and picture phones
(b) Online information services.
4. How communication take place by using
(a) Modems and Datacomm software
(b) ISDN lines and cable modems.
5. (a) Explain the following :
(i) C characters. (1)
(ii) Identifiers and keywords. (2)
(iii) Library functions. (3)
(iv) Operators. (5)
(v) Input/output streams. (6)
(b) Discuss about IF and IF…ELSE construction. (3)

6. (a) Explain vectors and points.
(b) Define arrays. Explain the types of arrays in detail.
7. (a) Write a ‘C’ program to add and multiply two given matrices.
(b) Write a ‘‘C’’ program to arrange the numbers in ascending order.
8. Explain the following :
(a) Macros and inline functions.
(b) Pass by value, pass-by-reference.

M.C.A. (NS) Degree Examination, May 2008 :
C And Data Structures :
(2001 onwards)
Time : Three hours
Maximum : 100 marks
Answer any FIVE questions.
Each question carries equals marks.
1. (a) Explain different data types available in C.
(b) Define Expression. Also discuss any three types of expression with examples.
2. (a) What is recursion? Write a C program to find N! using recursion.
(b) Explain the concept of stack data structures with a programming example.
3. (a) Explain the method of representing two dimensional array in memory. Write a C program to find matrix multiplication.
(b) Explain the procedure for inserting and deleting an item in a QUEUE.
4. (a) Explain the applications of STACK data structures.
(b) Write an algorithm to insert and delete a node in a singular linked list.

5. (a) Discuss :
(i) Sequential Representation of Binary Tree.
(ii) Linked Representation of Binary Tree.
(b) Explain Huffman Algorithm.
6. (a) Explain the terms with examples :
(i) Distinguish between Graph and Tree. (2)
(ii) Complete Binary Tree. (2)
(iii) Binary Search Tree. (6)
(b) What is a game Tree? Explain it with an example.
(10)
7. Discuss the following with examples :
(a) Insertion Sort.
(b) Radix Sort.
8. (a) Write an algorithm for the traversal.
(b) Write short notes on Hashing.