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Chapters
▶ 2: Number Systems
3: Computer Organization
4: Theoretical Concepts of Operating System
5: Working with Windows Operating System
6: Specification and Abstraction
7: Composition and Decomposition
8: Iteration and recursion
9: Introduction to C++
10: Flow of Control
11: Functions
12: Arrays and Structures
13: Introducton to Object Oriented Programming Techniques
14: Classes and objects
15: Polymorphism
16: Inheritance
17: Computer Ethics and Cyber Security
18: Tamil Computing
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Solutions for Chapter 2: Number Systems
Below listed, you can find solutions for Chapter 2 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Computer Science [English] Class 11 TN Board.
Samacheer Kalvi solutions for Computer Science [English] Class 11 TN Board 2 Number Systems Evaluation - Section - A [Page 31]
Choose the correct answer
Which refers to the number of bits processed by a computer’s CPU?
Byte
Nibble
Word length
Bit
How many bytes does 1 KiloByte contain?
1000
8
4
1024
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
2^50 is referred as ______
Kilo
Tera
Peta
Zetta
How many characters can be handled in Binary Coded Decimal System?
64
255
256
128
For 11012 the equivalent Hexadecimal equivalent is?
F
E
D
B
What is the 1’s complement of 00100110?
00100110
11011001
11010001
00101001
Which amongst this is not an Octal number?
645
234
876
123
Samacheer Kalvi solutions for Computer Science [English] Class 11 TN Board 2 Number Systems Evaluation - Section - B [Page 31]
Very Short Answers
What is data?
Write the 1’s complement procedure.
Convert (46)10 into a Binary number.
We cannot find 1’s complement for (28)10. State reason.
List the encoding systems that represent characters in memory.
Samacheer Kalvi solutions for Computer Science [English] Class 11 TN Board 2 Number Systems Evaluation - Section - C [Page 31]
Short Answers
What is radix of a number system? Give example
Write a note on the binary number system.
Convert (150)10 into Binary, then convert that Binary number to Octal.
Write a short note on ISCII.
Add
– 2210 + 1510
Add
2010 + 2510
Samacheer Kalvi solutions for Computer Science [English] Class 11 TN Board 2 Number Systems Evaluation - Section - D [Page 31]
Explain in detail
Write the procedure to convert fractional Decimal to Binary.
Convert (98.46)10 to Binary.
Find 1’s Complement and 2’s Complement for the following Decimal number.
-98
Find 1’s Complement and 2’s Complement for the following Decimal number.
-135
Add 11010102 + 1011012
Subtract 11010112 – 1110102
Samacheer Kalvi solutions for Computer Science [English] Class 11 TN Board 2 Number Systems Boolean Algebra - Evaluation - Section - A [Page 40]
Choose the correct answer
Which is a basic electronic circuit which operates on one or more signals?
Boolean algebra
Gate
Fundamental gates
Derived gates
Which gate is called the logical inverter?
AND
OR
NOT
XNOR
A + A = ?
A
O
1
A
NOR is a combination of?
NOT(OR)
NOT(AND)
NOT(NOT)
NOT(NOR)
NAND is called a ______ Gate.
Fundamental Gate
Derived Gate
Logical Gate
Universal Gate
Samacheer Kalvi solutions for Computer Science [English] Class 11 TN Board 2 Number Systems Boolean Algebra - Evaluation - Section - B [Page 40]
Very Short Answers
What is Boolean Algebra?
Write a short note on NAND Gate.
Draw the truth table for the XOR gate.
Write the associative laws?
What are derived gates?
Samacheer Kalvi solutions for Computer Science [English] Class 11 TN Board 2 Number Systems Boolean Algebra - Evaluation - Section - C [Page 40]
Short Answers
Write the truth table of fundamental gates.
Write a short note on XNOR gate.
Reason out why the NAND and NOR are called universal gates?
Give the truth table of the XOR gate.
Write the De Morgan’s law.
Samacheer Kalvi solutions for Computer Science [English] Class 11 TN Board 2 Number Systems Boolean Algebra - Evaluation - Section - D [Page 40]
Explain in detail
Explain the fundamental gates with an expression and truth table.
How AND and OR can be realized using NAND and NOR gate.
Explain the Derived gates with expression and truth table.
Solutions for 2: Number Systems
Samacheer Kalvi solutions for Computer Science [English] Class 11 TN Board chapter 2 - Number Systems
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Concepts covered in Computer Science [English] Class 11 TN Board 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, Basics of Logic Gates.
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