BLE class 8 computer model question solved

Introduction:

Computer education has become an essential part of the modern curriculum, and it's crucia to master te concepts to stay ahead in the competitive world. BLE Class 8 Computer model question exam is an important milestone for students to showcase their computer skills and knowledge. However, it can be a daunting task to prepare for the exam without proper guidance and resources. This guide aims to provide you with solved model questions, explanations, and tips to help you crack the code and excel in your BLE Class 8 Computer exam.

Basic Education Examination Committee

Basic Level Final Examination 2079

Subject: Computer Science

Class: 8                                                Full Marks: 50

Time: 1:30 Hrs

Candidates are required to answer in their own words as far as possible. Credit will be given to originally, not to rote learning.

Group "A" (10×1=10)

Very short answer questions.

1. Write any two examples of input device.     1

Ans: Two examples of input devices are: i) Keyboard and ii) Mouse

2. Write the first computer that was bought in Nepal.     1

Ans: The first computer bought in Nepal was IBM 140.

3. Why analog computer is called a special purpose computer?  1
Ans: An analog computer is called a special purpose computer because it is designed to solve a specific set of mathematical or scientific problems using analog signals and continuous physical phenomena, rather than digital data and discrete operations.

4. What is the extension of PowerPoint file?     1

Ans: The extension of Microsoft PowerPoint files is ".pptx".

5. Who invent HTML? Write full name. 1

Ans: Tim Berners-Lee invents HTML.

6. Write two examples of image processing software     1

Ans: Adobe Photoshop, and ImageJ are two examples of image processing software.

7. List any two services that we receive from the internet.     1

Ans: Two services of the internet are:

i) WWW

ii) Social media

8. When was cyber law established in Nepal? (Write the full date is BS)     1

Ans: Cyber law established in Nepal was 17th Bhadra 2061 BS.

9. Write True or False 2×0.5=1

a) The first page of the website is called the web page. False

b) Sending computer virus from one computer to anther is also cyber crime. True

10. Write the full forms of the following words. 2×0.5=1

a) BIT: Binary Digits

b) ISP: Internet Service Provider

Group "B" (7×4=28)

Short answer questions

11. List the main components and characteristics of any four generations of computer. 4

Ans: Following are the main components and characteristics of the generation ion of the computer.

Generation	Main component	Characteristic
First	Vacuum Tubes	Large in size and expensive
Second	Transistor	Used assembly programming language
Third	Integrated circuits	Increased use of graphical user interfaces
Fourth	Microprocessor	introduction of the personal computer

12. What is language processor? Write three advantages of open source software. 4

Ans: Language processor is software that analyzes, manipulates, and translates human language.

Following are the three advantages of open source software.

i) Freely available in internet.

ii) Cost saving

iii) Customizability

13. Write the function of following hot keys. 4

i) CTRL + C : Copy selected text

ii) CTRL +V: paste the content from the clipboard to the document at the cursor's current location.

iii) CTRL + P: Used to open the Print dialog box.

iv) CTRL + Z: Used to undo the last action that was performed.

14. List four modes of transmission of computer virus.

Ans: Following are the four modes of transmission of computer virus.

i) Email Attachments

ii) Downloading from the Internet

iii) Infected Websites

iv) File Sharing

15. Write four advantages of multimedia in a classroom.

Ans: Following are the four advantages of multimedia in a classroom.

i) Multimedia provides a dynamic and interactive learning experience that can help students retain information better.

ii) Multimedia can be tailored to suit different learning styles, making it easier for students to understand and engage with the material.

iii) By incorporating multimedia into the classroom, teachers can increase student engagement and motivation, leading to improved learning outcomes.

iv) With multimedia, teachers can easily customize and adapt their lessons to suit the needs of their students, making it a versatile tool for the classroom.

16. Write short notes on: 2×2=4

a) Spreadsheet software

Spreadsheet software is a computer program that allows users to organize, analyze and manipulate numerical data in a tabular form. It uses rows and columns to represent data and enables users to perform calculations, create graphs and charts, and make complex data analysis. Some of the popular spreadsheet software includes Microsoft Excel, Google Sheets, and Apple Numbers. Spreadsheet software is widely used in business, finance, accounting, and many other fields where data management and analysis are required.

b) Computer Graphics

Computer graphics refers to the creation, manipulation, and display of visual content using computers. It involves the use of software and hardware to create and display images, animations, and videos. Computer graphics are widely used in various fields, including entertainment, advertising, design, education, and scientific visualization. Some of the popular computer graphics software includes Adobe Photoshop, Autodesk 3ds Max, and Blender. With the advancement of technology, computer graphics have become an essential part of our daily lives, from creating stunning visual effects in movies to designing product prototypes.

17. a) Convert as indicated. 2×1=2

i) (335)10 into base 2

ii) (1101)2 into base 10

b) Binary arithmetic's. 2×1=2

i)101001-11111

ii) 1101 ×11

Group "C" (2×6=12)

18.a) Define computer network. Write two advantages of computer network. 3

Ans: A computer network is a group of interconnected computing devices that can communicate with each other to share resources and information.

Advantages of computer network:

i) Resource sharing: Networks allow multiple devices to share resources such as printers, files, and internet access, making work more efficient and cost-effective.

ii) Communication: Networks enable easy communication and collaboration between users, regardless of their physical location, leading to increased productivity and innovation.

b) What is cyber crime? List two methods to control cyber crime in Nepal. 3

Ans: Cybercrime refers to illegal activities carried out using the internet or other digital technologies, such as hacking, identity theft, and online fraud.

Methods to control cybercrime in Nepal:

i) Cyber law enforcement: The government can enforce strict cyber laws and regulations to deter cybercriminals and prosecute offenders.

ii) Cybersecurity measures: Individuals and organizations can take measures to secure their digital systems and data, such as using strong passwords, installing antivirus software, and regularly updating software and security patches.

19. a) Draw a flowchart to calculate the average of three numbers. 3

b) Write a QBASIC program to calculate the area of four walls. [Hints: area=2h(l+b)]

CLS

INPUT "Enter length:";l

INPUT "Enter breadth: ";b

INPUT "Enter height: ";h

area= 2*h(l+b)

PRINT "Area of four walls: ";area

END

Conclusion:

In conclusion, the BLE Class 8 Computer exam is an important milestone for students to showcase their computer skills and knowledge. By using this comprehensive guide that provides solved model questions, explanations, and tips, students can prepare effectively and confidently for the exam. Remember to focus on the basics, practice with solved model questions, and use visual aids to understand complex concepts. With the right preparation and approach, students can crack the code and excel in their BLE Class 8 Computer exam.

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