Tamil Nadu Board 11th Standard Computer science - Chapter 2: Book Back Answers and Solutions
This post covers the book back answers and solutions for Chapter 2 – Computer science from the Tamil Nadu State Board 11th Standard Computer science textbook. These detailed answers have been carefully prepared by our expert teachers at KalviTips.com.
We have explained each answer in a simple, easy-to-understand format, highlighting important points step by step under the relevant subtopics. Students are advised to read and memorize these subtopics thoroughly. Once you understand the main concepts, you’ll be able to connect other related points with real-life examples and confidently present them in your tests and exams.
By going through this material, you’ll gain a strong understanding of Computer science Chapter 2 along with the corresponding book back questions and answers (PDF format).
Question Types Covered:
- 1 Mark Questions: Choose the correct answer, Fill in the blanks, Identify the correct statement, Match the following
- 2 Mark Questions: Answer briefly
- 3, 4, and 5 Mark Questions: Answer in detail
All answers are presented in a clear and student-friendly manner, focusing on key points to help you score full marks.
All the best, Class 11 students! Prepare well and aim for top scores. Thank you!
Chapter 2 :Number Systems
I. Choose the correct answer
1. Which refers to the number of bits processed by a computer's CPU?
A) Byte
B) Nibble
C) Word length
D) Bit
Answer Key:
C) Word length
2. How many bytes does 1 Kilo Byte contain?
A) 1000
B) 8
C) 4
D) 1024
Answer Key:
D) 1024
3. Expansion for ASCII
A) American School Code for Information Interchange
B) American Standard Code for Information Interchange
C) All Standard Code for Information Interchange
D) American Society Code for Information Interchange
Answer Key:
B) American Standard Code for Information Interchange
4. 2050 is referred as
A) Kilo
B) Tera
C) Peta
D) Zetta
Answer Key:
C) Peta
5. How many characters can be handled in Binary Coded Decimal System?
A) 64
B) 255
C) 256
D) 128
Answer Key:
A) 64
6. For 11012, the equalent Hexadecimal equivalent is?
A) F
B) E
C) D
D) B
Answer Key:
C) D
7. What is the I's complement of 00100110?
A) 00100110
B) 11011001
C) 11010001
D) 00101001
Answer Key:
B) 11011001
8. Which amongst this is not an Octal number?
A) 645
B) 234
C) 876
D) 123
Answer Key:
C) 876
PART - II - Boolean Algebra
1. Which is a basic electronic circuit which operates on one or more signals?
(A) Boolean algebra
(B) Gate
(C) Fundamental gates
(D) Derived gates
Answer Key:
(B) Gate
2. Which gate is called as the logical inverter?
(A) AND
(B) OR
(C) NOT
(D) XNOR
Answer Key:
(C) NOT
3. A + A = ?
(A) A
(B) O
(C ) 1
(D)
Answer Key:
(A) A
4. NOR is a combination of ?
(A) NOT(OR)
(B)NOT(AND)
(C) NOT(NOT)
(D) NOT(NOR)
Answer Key:
(A) NOT(OR)
5. NAND is called as ___________Gate
(A) Fundamental Gate
(B) Derived Gate
(C) Logical Gate
(D) Universal gate
Answer Key:
(B) Derived Gate
II. Very Short Answers
11th computer scienceIII. Short Answers
11th computer scienceIV. Explain in detail
11th Computer science
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