Tamil Nadu Board of Secondary EducationHSC Science Class 11

# Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Computer Science Answers Guide chapter 2 - Number Systems [Latest edition]

## Solutions for Chapter 2: Number Systems

Below listed, you can find solutions for Chapter 2 of Tamil Nadu Board of Secondary Education Tamil Nadu Board Samacheer Kalvi for Class 11th Computer Science Answers Guide.

Evaluation - Section - AEvaluation - Section - BEvaluation - Section - CEvaluation - Section - DBoolean Algebra - Evaluation - Section - ABoolean Algebra - Evaluation - Section - BBoolean Algebra - Evaluation - Section - CBoolean Algebra - Evaluation - Section - D
Evaluation - Section - A [Page 31]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Computer Science Answers Guide Chapter 2 Number Systems Evaluation - Section - A [Page 31]

Evaluation - Section - A | Q 1. | Page 31

Which refers to the number of bits processed by a computer’s CPU?

• Byte

• Nibble

• Word length

• Bit

Evaluation - Section - A | Q 2. | Page 31

How many bytes does 1 KiloByte contain?

• 1000

• 8

• 4

• 1024

Evaluation - Section - A | Q 3. | Page 31

Expansion for ASCII.

• American School Code for Information Interchange

• American Standard Code for Information Interchange

• All Standard Code for Information Interchange

• American Society Code for Information Interchange

Evaluation - Section - A | Q 4. | Page 31

2^50 is referred as ______

• Kilo

• Tera

• Peta

• Zetta

Evaluation - Section - A | Q 5. | Page 31

How many characters can be handled in Binary Coded Decimal System?

• 64

• 255

• 256

• 128

Evaluation - Section - A | Q 6. | Page 31

For 11012 the equivalent Hexadecimal equivalent is?

• F

• E

• D

• B

Evaluation - Section - A | Q 7. | Page 31

What is the 1’s complement of 00100110?

• 00100110

• 11011001

• 11010001

• 00101001

Evaluation - Section - A | Q 8. | Page 31

Which amongst this is not an Octal number?

• 645

• 234

• 876

• 123

Evaluation - Section - B [Page 31]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Computer Science Answers Guide Chapter 2 Number Systems Evaluation - Section - B [Page 31]

Evaluation - Section - B | Q 1. | Page 31

What is data?

Evaluation - Section - B | Q 2. | Page 31

Write the 1’s complement procedure.

Evaluation - Section - B | Q 3. | Page 31

Convert (46)10 into a Binary number.

Evaluation - Section - B | Q 4. | Page 31

We cannot find 1’s complement for (28)10. State reason.

Evaluation - Section - B | Q 5. | Page 31

List the encoding systems that represent characters in memory.

Evaluation - Section - C [Page 31]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Computer Science Answers Guide Chapter 2 Number Systems Evaluation - Section - C [Page 31]

Evaluation - Section - C | Q 1. | Page 31

What is radix of a number system? Give example

Evaluation - Section - C | Q 2. | Page 31

Write a note on the binary number system.

Evaluation - Section - C | Q 3. | Page 31

Convert (150)10 into Binary, then convert that Binary number to Octal.

Evaluation - Section - C | Q 4. | Page 31

Write a short note on ISCII.

Evaluation - Section - C | Q 5. a) | Page 31

– 2210 + 1510

Evaluation - Section - C | Q 5. b) | Page 31

2010 + 2510

Evaluation - Section - D [Page 31]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Computer Science Answers Guide Chapter 2 Number Systems Evaluation - Section - D [Page 31]

#### Explain in detail

Evaluation - Section - D | Q 1. a) | Page 31

Write the procedure to convert fractional Decimal to Binary.

Evaluation - Section - D | Q I. b) | Page 31

Convert (98.46)10 to Binary.

Evaluation - Section - D | Q 2. a) | Page 31

Find 1’s Complement and 2’s Complement for the following Decimal number.

-98

Evaluation - Section - D | Q 2. b) | Page 31

Find 1’s Complement and 2’s Complement for the following Decimal number.

-135

Evaluation - Section - D | Q 3. a) | Page 31

Evaluation - Section - D | Q 3. b) | Page 31

Subtract 11010112 – 1110102

Boolean Algebra - Evaluation - Section - A [Page 40]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Computer Science Answers Guide Chapter 2 Number Systems Boolean Algebra - Evaluation - Section - A [Page 40]

Boolean Algebra - Evaluation - Section - A | Q 1. | Page 40

Which is a basic electronic circuit which operates on one or more signals?

• Boolean algebra

• Gate

• Fundamental gates

• Derived gates

Boolean Algebra - Evaluation - Section - A | Q 2. | Page 40

Which gate is called the logical inverter?

• AND

• OR

• NOT

• XNOR

Boolean Algebra - Evaluation - Section - A | Q 3. | Page 40

A + A = ?

• A

• O

• 1

• A

Boolean Algebra - Evaluation - Section - A | Q 4. | Page 40

NOR is a combination of?

• NOT(OR)

• NOT(AND)

• NOT(NOT)

• NOT(NOR)

Boolean Algebra - Evaluation - Section - A | Q 5. | Page 40

NAND is called a ______ Gate.

• Fundamental Gate

• Derived Gate

• Logical Gate

• Universal gate

Boolean Algebra - Evaluation - Section - B [Page 40]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Computer Science Answers Guide Chapter 2 Number Systems Boolean Algebra - Evaluation - Section - B [Page 40]

Boolean Algebra - Evaluation - Section - B | Q 1. | Page 40

What is Boolean Algebra?

Boolean Algebra - Evaluation - Section - B | Q 2. | Page 40

Write a short note on NAND Gate.

Boolean Algebra - Evaluation - Section - B | Q 3. | Page 40

Draw the truth table for the XOR gate.

Boolean Algebra - Evaluation - Section - B | Q 4. | Page 40

Write the associative laws?

Boolean Algebra - Evaluation - Section - B | Q 5. | Page 40

What are derived gates?

Boolean Algebra - Evaluation - Section - C [Page 40]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Computer Science Answers Guide Chapter 2 Number Systems Boolean Algebra - Evaluation - Section - C [Page 40]

Boolean Algebra - Evaluation - Section - C | Q 1. | Page 40

Write the truth table of fundamental gates.

Boolean Algebra - Evaluation - Section - C | Q 2. | Page 40

Write a short note on XNOR gate.

Boolean Algebra - Evaluation - Section - C | Q 3. | Page 40

Reason out why the NAND and NOR are called universal gates?

Boolean Algebra - Evaluation - Section - C | Q 4. | Page 40

Give the truth table of the XOR gate.

Boolean Algebra - Evaluation - Section - C | Q 5. | Page 40

Write the De Morgan’s law.

Boolean Algebra - Evaluation - Section - D [Page 40]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Computer Science Answers Guide Chapter 2 Number Systems Boolean Algebra - Evaluation - Section - D [Page 40]

#### Explain in detail

Boolean Algebra - Evaluation - Section - D | Q 1. | Page 40

Explain the fundamental gates with an expression and truth table.

Boolean Algebra - Evaluation - Section - D | Q 2. | Page 40

How AND and OR can be realized using NAND and NOR gate.

Boolean Algebra - Evaluation - Section - D | Q 3. | Page 40

Explain the Derived gates with expression and truth table.

## Solutions for Chapter 2: Number Systems

Evaluation - Section - AEvaluation - Section - BEvaluation - Section - CEvaluation - Section - DBoolean Algebra - Evaluation - Section - ABoolean Algebra - Evaluation - Section - BBoolean Algebra - Evaluation - Section - CBoolean Algebra - Evaluation - Section - D

## Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Computer Science Answers Guide chapter 2 - Number Systems

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Concepts covered in Class 11th Computer Science Answers Guide chapter 2 Number Systems are Introduction to Number Systems, Data Representations, Different Types of Number Systems, Number System Conversions, Binary Representation for Signed Numbers, Binary Arithmetic, Representing Characters in Memory, Introduction to Boolean Algebra, Basic Logic Gates.

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