### CS6201 DPSD 2marks-16marks

Anna University Regulation 2013 Computer Science & Engineering (CSE) CS6201 DPSD 2marks & 16marks for all 5 units are provided below. Download link for CSE 2nd SEM CS6201 DIGITAL PRINCIPLES AND SYSTEM DESIGN Short answers, Question Bank are listed down for students to make perfect utilization and score maximum marks with our study materials.

CS6201 DPSD 2marks-16marks

UNIT-I

2-marks

1. Define binary logic Binary logic consists of binary variables and logical operations. The variables are designated by the alphabets such as A, B, C, x, y, z, etc., with each variable having only two distinct values: 1 and 0.

2. What is meant by Digital Systems? A digital system is a system that manipulates discrete elements of information that is represented by binary form i.e. 0’s and 1’s.

3. List the number systems i) Decimal Number system ii) Binary Number system iii) Octal Number system iv) Hexadecimal Number system

4. Convert 7368 into an equivalent binary number. The binary equivalents of 7, 3 and 6 are 111,011 & 110 respectively. Therefore 7368 = 1110111102

5. Which gates are called as the universal gates? What are its advantages? The NAND and NOR gates are called as the universal gates. These gates are used to perform any type of logic application.

6. State the sequence of operator precedence in Boolean expression? x Parenthesis x AND x OR

7. What are the different types of number complements? x Radix Complement x Diminished Radix Complement

8. Why complementing a number representation is needed. Complementing a number becomes as in digital computer for simplifying the subtraction operation and for logical manipulation complements are used.

10. What is meant by Map method? The map method provides a simple straightforward procedure for minimizing Boolean function. 11. What is meant by two variable map? Two variable map have four minterms for two variables, hence the map consists of four squares, one for each minterm.

12. State Duality principle. The dual of any Boolean function can be obtained by changing each OR sign to an AND sign and vice versa and complementing any 0 or 1 appearing in the expression.

13. Why parity checker is needed? Parity checker is required at the receiver side to check whether the expected parity is equal to the calculated parity or not. If they are not equal then it is found that the received data has error.

14. What is meant by parity bit? Parity bit is an extra bit included with a binary message to make the number of 1’seither odd or even. The message, including the parity bit is transmitted and then checked at the receiving and for errors.

15. What are the needs for binary codes?

• x Code is used to represent letters, numbers and punctuation marks.
• x Coding is required for maximum efficiency in single transmission.
• x Binary codes are the major components in the synthesis (artificial generation) of speech and video signals. x By using error detecting codes, errors generated in signal transmission can be detected.
• x Codes are used for data compression by which large amounts of data are transmitted in very short duration of time.

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