CFC OCT/NOV-2012

C-09-CM/IT-105

3025

BOARD DIPLOMA EXAMINATION, (C-09)

OCT/NOV-2012

DCME-FIRST YEAR EXAMINATION

COMPUTER FUNDAMENTALS AND PROGRAMMING IN C

Time: 3 hours]                   [Total Marks:80

PART-A

Instructions: (1) Answer all questions

(2) Each question carries three marks.

(3) Answers should be brief and straight to the point and shall not exceed five simple sentences.

1.       List different types of output devices.

2.       Define each of the following terms: (a) terabyte (b) Megabyte (c) Gigabyte

3.       How would you change the appearance of a desktop in windows?

4.       List different types of web search engines.

5.       Draw a flowchart to convert the given Fahrenheit temperature to Centigrade temperature.

6.       Differentiate between break and continue statements

7.       Define an array

8.       Differentiate between address and dereferencing operators

9.       What is structure variable?

10.   What is the use of fopen()?

PART-B

Instructions: (1) Answer any five questions.

(2) Each question carries ten marks.

(3) Answers should be comprehensive and the criteria for valuation is the content but not the length of the answer

11.   (a) convert the binary number 100101 to equivalent decimal number (b) convert the binary number 101101.101 to equivalent decimal number.

12.   (a) Explain about DIR, CD command with all options in DOS. (b) explain COPY and DELETE commands in DOS.

13.   Explain the role of a modem in accessing the internet with neat sketch.

14.   Write a c program to find the largest among four given numbers.

15.   Explain data types in c with examples along with their sizes.

16.   Write a c program to check whether the given string is palindrome or not.

17.   (a) define a function. Write the uses of function (b) Explain return statement with example

18.   (a) Write a c program using pointer to compute the sum of all elements stored in an array.
                                                     
                                                          ANSWERS:

PART-A

1. Output devices~
Out put devices are used to show the output or result on the screen.
Ex~
·         Printer.
·         Monitor.
·         Speakers.

PART-B
Explain the role of a modem in accessing the internet with neat sketch.
13 ANS:



Modem stands for Modulator/Demodulator.
·         Modems are used to connect the computer to the telephone lines.
·         Standard telephone lines transmit analog signals in which sound is translated into electrical current.
·         As a result, you need a modem to translate data into a form that can be sent over telephone lines.
·         Modem converts the in coming digital signals into analog from and sends the data to the computers.
Modem plays the very important role in exchange data between computers via a telephone line.

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