Tamil Nadu Board of Secondary EducationHSC Science Class 11th

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

## Chapter 2: Number Systems

Evaluation
Evaluation [Page 31]

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

#### Section A - Choose the correct answer

Evaluation | Q 1. | Page 31

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

• Byte

• Nibble

• Word length

• Bit

Evaluation | Q 2. | Page 31

How many bytes does 1 KiloByte contain?

• 1000

• 8

• 4

• 1024

Evaluation | 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 | Q 4. | Page 31

2^50 is referred as ______

• Kilo

• Tera

• Peta

• Zetta

Evaluation | Q 5. | Page 31

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

• 64

• 255

• 256

• 128

Evaluation | Q 6. | Page 31

For 11012 the equivalent Hexadecimal equivalent is?

• F

• E

• D

• B

Evaluation | Q 7. | Page 31

What is the 1’s complement of 00100110?

• 00100110

• 11011001

• 11010001

• 00101001

Evaluation | Q 8. | Page 31

Which amongst this is not an Octal number?

• 645

• 234

• 876

• 123

#### Section B - Very Short Answers

Evaluation | Q 1. | Page 31

What is data?

Evaluation | Q 2. | Page 31

Write the 1’s complement procedure.

Evaluation | Q 3. | Page 31

Convert (46)10 into a Binary number.

Evaluation | Q 4. | Page 31

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

Evaluation | Q 5. | Page 31

List the encoding systems that represent characters in memory.

#### Section C - Short Answers

Evaluation | Q 1. | Page 31

What is radix of a number system? Give example

Evaluation | Q 2. | Page 31

Write a note on the binary number system.

Evaluation | Q 3. | Page 31

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

Evaluation | Q 4. | Page 31

Write a short note on ISCII.

Evaluation | Q 5. a) | Page 31

– 2210 + 1510

Evaluation | Q 5. b) | Page 31

2010 + 2510

#### Section D - Explain in detail

Evaluation | Q 1. a) | Page 31

Write the procedure to convert fractional Decimal to Binary.

Evaluation | Q 1. b) | Page 31

Convert (98.46)10 to Binary.

Evaluation | Q 2. a) | Page 31

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

-98

Evaluation | Q 2. b) | Page 31

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

-135

Evaluation | Q 3. a) | Page 31

Evaluation | Q 3. b) | Page 31

Subtract 11010112 – 1110102

Evaluation

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

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Concepts covered in Class 11th Computer Applications 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.

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