Computer Questions and Answers from class I to VIII (CBSE /NCERT/SEBA)

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How Artificial intelligence changing the world?

Artificial Intelligence (AI) has emerged as one of the most revolutionary technologies of our time, with the potential to transform the world in many ways. AI systems are already impacting various industries, from healthcare to transportation, and their potential for future applications is enormous. In this essay, we will explore how AI can change the world and the opportunities and challenges it presents. One of the most significant ways AI can change the world is through automation. AI-powered systems can automate a wide range of tasks, from manufacturing and logistics to customer service and data analysis. Automation can help reduce labor costs, improve efficiency, and speed up processes, leading to significant productivity gains. For instance, factories can use AI-powered robots to automate manufacturing processes, resulting in faster production times, lower costs, and higher quality products. Similarly, online retailers can use AI-powered chatbots to provide 24/7 customer support,...

Importance of Machine learning

Importance of Machine learning: Machine learning has become a crucial aspect of our daily lives, and its importance has only increased in recent years. Machine learning is a subfield of artificial intelligence that involves the development of algorithms and statistical models that enable computers to learn from and make predictions or decisions based on data. One of the key benefits of machine learning is its ability to automate and streamline tasks that were previously performed by humans. For example, in the healthcare industry, machine learning algorithms can be used to identify patterns and make predictions about patient outcomes, helping medical professionals make informed decisions and provide better care. Another important aspect of machine learning is its ability to analyze and process vast amounts of data in real-time. With the exponential growth of data generated by various sources, such as the internet, social media, and sensors, traditional data processing tech...

What is chatGPT ?

ChatGPT: Overview and Usage: ChatGPT is an advanced AI-powered language model developed by OpenAI, one of the leading organizations in the field of Artificial Intelligence. It's a powerful tool for generating human-like text and can be used for various purposes like generating content, answering questions, and even generating code. ChatGPT works by using deep learning techniques to analyze large amounts of text data and generate responses based on that analysis. It has been trained on a massive dataset of over 8 million web pages, books, and other text sources, which gives it a broad understanding of language and an ability to generate text that is both coherent and relevant to the input provided. To use ChatGPT, you simply need to provide a prompt or a question, and the model will generate a response based on that input. For example, you might ask, "What is the capital of France?" and ChatGPT would respond with "The capital of France is Paris." The model can al...

Class 1 chapter 8 Paint

class 3 chapter 6 Microsoft word 2010

D. Answer of following questions: 1. What is a word processor? Answer : Word processor is a software in which you can create edit save and print a text document. 2.How are the commands organised in the Ribbon? Answer:The Ribbon has all the command tabs such as file home insert and so on. 3.What do you mean by editing a document? Answer: Making changes or correction in document is called editing. 4.What should we do To insert a word between two letters A and B? Answer:To insert a document between A and be we have to click in the space between them.

Class V Chapter 9 Algorithm and flowcharts

D.Answer these questions. 1. What is an algorithm? Answer: the step by step instructions to perform an action is called algorithm. 2.What is a flowchart? Answer : A flowchart is a pictorial representation of an algorithm. 3.What do you mean by conditional algorithm? Answer: If an action is dependent on a decision the algorithm formed is called a conditional algorithm. 4.What is the difference between an algorithm and a flowchart? Answer : The step by step instructions to perform an action is called an algorithm. Where is a flowchart is a pictorial representation of an algorithm. ***

Class VII. Chapter 11 Cyber Threats and Security Part 1

Exercise

class vii || chapter 11 ||Cyber Threats and Security || part 2

1. How do viruses infect a computer system? Answer: A virus program is able to replicate itself once it is on the hard disk of the computer with an intension to destroy or steal data it can spread to other computers without the users knowledge when the data is copied or transferred from the infected computers. 2.List any four possible symptoms of virus infection in a computer. Answer: A computer infected with a virus may exhibit stray behaviour such as : • An annoying message repeatedly appears on the computer screen. • A reduced computer memory or hard disk space. • Files get overwritten or are damaged • The computer stops responding or hangs. 3.What are the precautions one should take to avoid entry of virus into a computer system? Answer: The safety precautions one should take into avoid entry of virus in the computer system such as: • Antivirus software • Data backup and recovery • Online backups. 4.Name two popular antivirus programs. Answer : Kaspersky antivirus, Norton antivirus...

class vii chapter 12 Popular Services on the internet

D.Answer the following questions : 1.What is social networking? what is meant by social media? Answer: Social networking refers to forming an online circle of friends relatives acquaintances and colleagues. Social media refers to websites and mobile applications that let the users exchange messages create and share content and join online communities. 2.Name two popular social networking websites. Answer : Facebook , Instagram . 3.What do you understand by the term microblogging ? give two examples of popular microblogging websites. Answer : Microblogging is a service that allows its subscribers to broadcast a short messages to other subscribers. For example Twitter ,Tumblr ,Pinterest And Quora. 4.What is an Internet forum? what is a thread? Answer : An Internet forum is an online discussion site .A single conversation in Internet forum is called a thread. 5.What is an ecard? Name any popular e- card website. Answer : E greeting card or east car...

class vii || chapter 12 || Popular Services on the Internet 1

class V. chapter 8 MS Excel 2010

CLASS V. chapter 9 , Algorithm and flowcharts

class viii || chapter 10 || Advanced features of HTML

class vii chapter 10 Introduction to HTML4

class vi chapter 12 Statements in QB64

class vi chapter 10 Algorithm and flowchart

D. Answer the following questions. 1.Why are algorithms important ? Ans: Algorithms are important to programming as any process has to be broken down into small steps for a computer to understand and execute. 2. Differentiate between an algorithm and a flowchart. Ans: An algorithm is a set of rules for a process. It breaks down a task into a series of steps. Everything that you do in the day to day life follows algorithm.

class viii chapter 4 Introduction to Microsoft Access 2010

D. Answer the following questions. 1. Name the two views in which you can create a table in access. Describe one of them. Ans: Access allows tables to be created of the views which are , a) Datasheet view. b) Design view. Datasheet view : Datasheet view helps to enter and display data, and insert , delete , rename or move a field in an existing table. 2.What do you define in field grid of design view window? Ans: Field grid of the design view window is used to define the field name,the data type and it's description. 3. Give brief answers. a) Including spaces, what is the maximum length permissible for a field name? Ans: 64 characters . b) where does the record reside in a table set with a primary key? Ans: Any new record entered is physically Stored as the last record. c) When is the primary key set in a table? Ans: Primary key is set during the table design. d) What happens to the sequence of a primary key ...

class viii Introduction to Database

D. Answer the following questions.

class vii chapter 1 Number system and computer arithmetic

D. Answer the following questions. 1. What are the symbols used in binary system? Ans: 0 and 1. 2. Why do computer use binary number system? Ans: Because computer circuits can only understand two digits , 0 and 1. 3. Write the rules to convert decimal into binary numbers. Ans: write down the decimal number and continuously divide by 2 to give a result and a reminder of either a 1 or 0 untill the final result equals to zero. 4. What are the rules to be followed for binary addition? Ans: The rules are as follows, 1. 0+0=0 2. 0+1=1 3.1+0=1 4.1+1=10, here 0 is written under the same column and 1 is moved to next place as carry over. 5.1+1+1=10+1=11. 5. What is octal number system? How will you convert a binary number to octal number? Ans: Octal number system is base 8 system. It uses the symbols 0 to 7. To convert from binary to octal we have to group the binary numbers from the least significant bit in group of 3 bits, each of the group is then expres...

class viii chapter 6 Introduction to Photoshop

Excercise D. Answer the following questions. 1. What are the main application of the Adobe Photoshop? Ans: The main application of Adobe Photoshop are Layers, selection tools, pen tools , shapes, vector mask, slice tool, retouching tools, photoshop 3D, smart objects, creative cloud. 2. Describe the use of the following tools briefly: a) crop: it used to cut out the portion of a figure that we wish to keep. b) Marquee: it is used to select a part of an image. Selection is marked by a rectangular or an ellipse formed around the part. c) Quick selection : this tool automatically finds the edges around part of an image. d) Magic wand : it automatically select the adjacent area having the same colour in an image. e) Move : this tool is used to move the selected part of an image to a new location in the workspace. f) Paint bucket: This tool is used to fill a part of an image with a selected colour. g)Eye dropper : It picks the colour f...