Kips Class 7 IT Beans Chapter 1 Number System

Chapter 1 Number System

Brain Developers
A. Fill in the blanks:
1. The base of Binary number system is
2.
2. The base of
Decimal number system 10.
3. Octal number system consists of
8 digits.
4. In Binary addition, 1 + 1 equals to
10.
5.
Binary number system is understood by the computer system.
6.
Hexadecimal uses 16 symbols to represent numbers.
7. In Binary subtraction, 1 - 1 equals
0.

B. State True or False:
1. The decimal number system consists of 10 digit i.e., 0 to 9. (
True)
2. The method to perform division of two binary number is not same as that of the decimal numbers. (
False)
Correct Answer: The method to perform division of two binary number is same as that of the decimal numbers.
3. 1 multiplied by 0 equals to 0. (
True)
4. Charles Babbage introduced the concept of 0 [Zero]. (
False)
Correct Answer: Aryabhatt introduced the concept of 0 [Zero].
5. The number used in Octal number system are 1 to 7. (
False)
Correct Answer: The number used in the Octal number system are 0 to 7.
 
C. Application Based Question:
1. Ratika's computer teacher asked her to convert the Octal number to Decimal number. Suggest her the method which she should apply in converting the Octal number.
Answer:
Multiply each octal number with 8 having the power 0 for unitary position,starting from the extreme right digit.

2. The teacher has given as assignment to Saurabh on Binary subtraction. Saurabh is confused how to subtract 1 from 0. Help him solving the problem.
Answer:
He can solve this by borrow method as (0 - 1 = 1).
 
D. Multiple Choice Questions:
1. ____________ introduced the concept of 0 [Zero].
a) Ada Lovelace
b) Aryabhatt
c) Bill Gates
Answer:
b) Aryabhat

2. A _________ converts the decimal format into its binary equivalent.
a) Digital computer
b) Cell phone
c) Abacus
Answer:
a) Digital Computer

3. A computer understands only _________ code.
a) English
b) French
c) Binary
Answer:
c) Binary

4. In Binary multiplication, 1 x 1 equals to _______.
a) 0
b) 1
c) 2
Answer:
b) 1

5. To convert Decimal number into Binary number, divide the number by ________.
a) 2
b) 8
c) 10
Answer:
a) 2

E. Answer the following:
1. Explain Number system and its commonly used types.
Answer:
Number system is a way to represent the numbers in the computer architecture. There are four different types of number system -
a) Binary number system
b) Octal number system
c) Decimal number system
d) Hexadecimal number system

2. What are the rules to convert a Decimal number into Binary number?
Answer:

Step 1: Divide the given decimal number with the base 2.
Step 2: Write down the remainder and divide the quotient again.
Step 3: Repeat the step 2 until the quotient is 0.

3. Write the rules to multiply 2 binary numbers.
Answer:
The rule for performing multiplication using binary numbers is the same that of the numbers. 0 x 0 = 0, 0 x 1 = 0, 1 x 0 = 0 & 1 x 1 = 1.

4. Briefly explain the Octal number system.
Answer:
Octal number system consists of 8 digits i.e . 0 to 7 with the base 8.

5. What do you understand by hexadecimal number system?
Answer:
Hexadecimal number system contains 16 digits, and therefore, has the base 16. It uses the digits (0 - 9) and (A - F).

53 comments:

  1. thanks for this amazing solution but please mention Que-5 what do you under stand by hexadecimal number system? in this solution please and thanks

    ReplyDelete
    Replies
    1. Ok thanks for your suggestion!

      Delete
    2. Keep visiting our website!

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    3. Where is 5th answer

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    4. Please mention the question...

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    5. nice i had a good practice of my concepts for my exam

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    6. Thanks! In this website you can also find NCERT Solutions... Do recommend this website to your friends if you found the solutions helpful!

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    7. Thank you very much

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    8. Welcome! Do share our website with your friends!

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  2. please make notes for this chapter

    ReplyDelete
    Replies
    1. Ok sure! We shall consider your suggestion...

      Delete
    2. Pls...add 5th Question
      The question is 👇🏻
      What do you understand by the Hexadecimal number system?

      Delete
    3. Pls..add 5th Question
      The Question is 👇🏻
      What do you understand by the Hexadecimal number system?

      Delete
    4. Okay, thanks for updating us! We have added Question 5, do check once...

      Delete
  3. BUT WHEN PLEASE TELL ME

    ReplyDelete
  4. Good One Sir...Put the Textbook Sums as well..

    ReplyDelete
  5. Anonymous12 July, 2021

    Thanks for this post

    ReplyDelete
  6. Anonymous13 July, 2021

    Your answers are correct and reliable!

    ReplyDelete
  7. NICE SUPER USEFUL OF THIS SOLUTIONS I LIKE IT IT WAS EAST

    ReplyDelete
  8. Replies
    1. Please type the fifth question...

      Delete
    2. 5th question is "what do you understand by hexadecimal number system?"

      Delete
    3. Hi user,

      Your Answer is
      This number system contains 16 digits, and therefore, has the base 16. It uses the digits (0 - 9) and (A - F).

      Delete
  9. Please can u add 5th one solution.

    ReplyDelete
    Replies
    1. Could you please type that question, so that we can get back to you...

      Delete
  10. hello in the 2 answer please write repeat the step 2 not repeat step 3 please

    ReplyDelete
    Replies
    1. Please check once again... It is written step 2 and not step 3

      Delete
  11. good i love it very help me

    ReplyDelete
    Replies
    1. Welcome! Do recommend our website to your friends if you found our website helpful...

      Delete
    2. Can you please give link for chapter 2 types of software
      ASAP please

      Delete
    3. Hi,
      Actually we are providing solutions of Kips IT Beans Class 6 and Class 7 only.

      Delete
  12. Replies
    1. Thanks to you too. Keep visiting our website! For the development of this site please click atleast one ad so that we have improve our resources to make it more useful for students...

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  13. Please I want the notes of the chapter number system because I think it is a bit tough

    ReplyDelete
    Replies
    1. Okay sure! We shall post it... When we will post it, we will let you know... Subscribe to our website for latest update.

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  14. Please post the pdf of book also

    ReplyDelete
  15. Yes it's brilliant wow nice 😄👍

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    Replies
    1. Thanks! Do share our website with your friends...

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  16. Replies
    1. Welcome! You can also find solutions to Kips IT Beans, Cyber Apps, Cyber Beans, Artificial Intelligence...

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