class 7th computer question answer Annual

class 7th computer question answer Annual

Section-A

Multiple Choice Questions:                                                                  (1×20=20)

Q1. The numerical digits (0, 1, 2, 3….) are based on the ____________ numeral system.

  1. Hindu-Arabic
  2. Hindu
  3. Arabic
  4. None of these

Q2. The total number of digits used in a number system is called its ___________.

  1. a) Counting
  2. Radix
  3.  Number                             
  4. None of these

Q3. The base of Binary Number is _____________.

  1. 8                                                             
  2. 10
  3. 2                                                            
  4. None of these

Q4. In the binary number system, LSD stands for ____________________

  1. Less Sign Digit
  2. Least Sign Digit
  3. Least Significant Digit 
  4. None of these

Q5. Adobe Photoshop CS6 is a powerful _________ software.

  1. Word processor
  2. Graphics
  3. Presentation
  4. None of these

Q6. ______________ tool is used to select a rectangular portion of an image.

  1. Elliptical Marquee
  2. Rectangular Marquee
  3. Lasso
  4. None of these

Q7. ____________ tool is used to remove unwanted parts of an image.

  1. Lasso
  2. Crop
  3. Pencil
  4. None of these

Q8. The file extension of Adobe Photoshop is ____________.

  1. .flp                                                           
  2. .psd
  3. .flv                                                           
  4. None of these

Q9. Photoshop was developed by __________.

  1. Thomas Edison
  2. Thomas Knoll
  3. Charles Babbage 
  4. None of these

Q10. ___________ tool is used to rub some portion of an image.

  1. Rubber
  2. Eraser
  3. Pencil
  4. None of these

Q11. ___________ tool is used to give a blending effect between two or more colors.

  1. Gradient
  2. Gradien
  3. Linear
  4. None of these

Q12. The collection of related web pages is called _______.

  1. Web browser                        
  2. Website
  3. URL             
  4. None of these

Q13. The seed of the internet was planted in ______.

  1. 1968
  2. 1969
  3. 1967
  4. None of these

Q14. URL Stands for ____________.

  1. Uniform Resource Locator
  2. Uniform Read Location
  3. Uniform Research Locator
  4. None of these

Q15. The first person to send an email across a network was _____________.

  1. a) Bill Gates
  2. Ray Tomlinson
  3. Thomas Knoll
  4. None of these

Q16. Acronym CU Stands for __________

  1. Sa U
  2. See You
  3. Seen u
  4. None of these

Q17. The ______ refers to finding the identity of a person who is speaking.

  1. Voice recognition
  2. Voice recorder
  3. Voice recognition 
  4. None of these

Q18. _________ is the process of conversion of data and information into non-readable form.

  1. Decryption
  2. Encryption
  3. Description
  4. None of these

Q19. ____ is the process of identifying an individual using his/her facial features.

  1. Biometric Authentication
  2. Face Recognition
  3. Password Protection
  4. None of these

Q20.  _______  are special symbols in Python used to perform calculations.

  1. Keyword
  2. Operators
  3. Character Set
  4. None of these

B Application Based Question:                                                                                               1×10=10

Q21. Read the paragraph and answer the following question:

During online communication, people may not be face-to-face with each other. So, Facial expressions cannot be covered by others. To overcome this problem the concept of emoticons was developed. Emoticons represent your facial expressions. The term emoticons is an abbreviation for emotion icon. They help tell your mood to others and save typing time.

The first two emoticons used by their introducer, Scott Fahlmanwere : ) depicting a smiling face and 🙁 depicting a sad face.

Choose the correct option:

  1. In __________ communication, people may not be face-to-face with each other.
    1. Online                                             
    2. Offline
    3. both of the above d) None of these
  2. ____________are used to show the facial expression during online communication.
    1.  Emotion
    2. Motion
    3. Emoticons
    4. None of these
  3. The ___________ is the abbreviation for emoticons.
    1. Emotion on
    2. Emotion icon
    3. Emotion Ion            
    4. None of these
  4. The first emoticons introduced by ____________
    1. Scott Fahlman                                    
    2. Donald Scott
    3. Scott Forman
    4. None of these
  5. ___ emoticons show a smiling face.
    1. 🙂                                    
    2. 🙁
    3. Both of the above
    4. None of these

Q22. Read the paragraph and answer the following question:

Python is an interpreted high-level general-purpose programming language. Python is dynamically typed and garbage-collected. It supports multiple programming paradigms, including structured (particularly, procedural), object-oriented, and functional programming. It is often described as a “batteries included” language due to its comprehensive standard library.

Guido van Rossum began working on Python in the late 1980s, as a successor to the ABC programming language and first released it in 1991 as Python 0.9.0. Python 2.0 was released in 2000 and introduced new features, such as list comprehensions and a cycle-detecting garbage collection system (in addition to reference counting). Python 3.0 was released in 2008 and was a major revision of the language that is not completely backward-compatible.

Choose the correct option:

  1. Python is a ______________ language.
    1. Low level                                    
    2. High level
    3. Middle level 
    4. None of these
  2. It supports _________________ paradigms.
    1. Linear programming
    2. Multiple programming
    3. Procedural programming
    4. None of these
  3. Python is a successor of __________ language.
    1. BC                                    
    2. C
    3. C++             
    4. None of these
  4. Python 2.0 was released in _________
    1. 1991           
    2. 2000
    3. 2008                                                 
    4. None of these
  5. The file extension of the Python program is ______.
    1. .pd                                             
    2. .py
    3. .pc                                             
    4.  None of these

Very Short Answer Type Questions:                                           1×5=5

Q23. What is the full form of ‘bit’?

Ans. Binary Digit

Q24. How is Brush Tool different from Paint Bucket Tool?

Ans. The brush tool is used to color the object while the paint bucket tool is used to fill color.

Q25. What is Flash?

Ans. Flash is a software used to create animation.

Q26. What is ARPANET?

Ans. Advanced Research Project AgencyNETwork.

Q27. What is Netiquettes?

Ans. Manners follow over the internet.

Short Answer Type Questions:                         2×5=10

Q28. What is the Octal Number System? Explain it with an example.

Ans. The number contains 8 digits (0-7) and the base of the digit is 8 Ex (07)8.

Q29. What is the full form of RGB and CMYK?

Ans. RGB- Red Green Blue

CMYK- Cyan Magenta Yellow Black

Q30. What is Instance? Write the steps to create an instance in Flash CS6.

Ans.  An occurrence of a symbol outside of the library is known as an instance.

Q31. What is a Web Browser?

Ans. It is an application used to access web pages over a network. Example: Mozilla Firefox, Chrome, Internet Explorer

Q32. What is WWW?

Ans. The World Wide Web is a web server that stores millions of Web Pages.

Long Answer Type Questions                                      3×5=15

Q33.  What are the rules for converting a decimal number into a binary number system? Explain it with an example.

Ans. Write down the number.->Divide it by 2 and note the remainder. ->Divide the quotient obtained by 2 and note the remainder. ->Repeat the same process till we get 0 as the quotient. ->Write the values of all the remainder starting from the bottom to the top.

Q34. Write any three features of Photoshop.

Ans. Features of Photoshop:

  1. Create 3’d Icons
  2. Easy to use.
  3. Easy user interface etc.

Q35. What is Symbol? Explain different types of symbols in Flash CS6.

Ans. Symbols are reusable objects in Flash and stored in the library.
Types of Symbols:
  1. Graphics Symbol
  2. Movie Clip
  3. Button
Q36. Write a program to add two numbers in Python.
            Ans.     a=10
                        b=20
                        c=a+b
                        Print(c)

Q37. Write a program to input principal, rate, and time and calculate Simple Interest.

p=int(input(“Enter Principal”))
r= int(input(“Enter Rate”))
t=int(input(“Enter Time”))
si= (p*r*t)/100
print(si)

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