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class 5 chapter 1

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Computer Notes (Class 5) 1. What is a Computer? A computer is an electronic machine that accepts data as input, processes it, and gives output as information . Definition: A computer is an electronic device that takes input, processes the data, stores it, and produces useful output . Example: Desktop Computer Laptop Tablet Smartphone 2. Evolution of Computer Evolution of computer means the development and improvement of computers from early machines to modern computers . Earlier, computers were very large, slow, and expensive . With time, technology improved and computers became smaller, faster, and more powerful . Early Calculating Devices Device Year Inventor Use Abacus Around 3000 BC Chinese Used for counting and basic calculations Napier's Bones 1617 John Napier Used for multiplication and division Pascaline 1642 Blaise Pascal Used for addition and subtraction Stepped Reckoner 1673 Gottfried Wilhelm Leibniz Used for addition, sub...
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9th final pratice

🌟 JAVA QUICK REVISION – FULL EXAM NOTE 🌟 (Read Carefully – High Scoring Concepts) 🔹 1. Encapsulation Encapsulation means wrapping data (variables) and methods (functions) together into a single unit called a class . It is achieved by: Declaring variables as private Providing access through public getter and setter methods Example: class Student { private int marks; public void setMarks(int m) { marks = m; } public int getMarks() { return marks; } } 🔹 2. Comparison Operator → == Used to compare two values. Returns true or false . Example: if (a == b) 🔹 3. Loop That Runs At Least Once → do-while Condition is checked after execution. Executes minimum one time even if condition is false. Example: do { System.out.println("Hello"); } while(condition); 🔹 4. Constant Variable Keyword → final Once assigned, value cannot be changed . final int x = 10; 🔹 5. Math.sqrt(16) → 4 Math.sqrt() returns square root. System.out.println(Math.s...
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class 6 chapter 8 and 9

 chapter 8 Questions and Answers 1. ______ uses technology for learning and teaching so that people can learn from anywhere and anytime. Answer: b. E-Learning 2. The set of rules expected to be followed during online communication is known as ______. Answer: c. Netiquette 3. An email address usually consists of three parts: username, the @ symbol and ______ name. Answer: d. Domain A. Choose the correct option 4. ______ is a malicious program that enters into a computer without the knowledge of end user. Answer: a. Virus B. Fill in the blanks (Words given: E-learning, Client, E-commerce, Server, World Wide Web) E-commerce refers to buying and selling of various products online. A computer connected to a network acts either as a client or server . The World Wide Web contains millions of documents called web pages. E-learning means learning with the use of technology anytime and anywhere. C. Write T for True and F for False A single computer can act as both client and server. ...
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class 5

I. Choose the correct answer (0.5 × 10 = 5) Who asked the famous question – Can machines think? Answer: d. Alan Turing Rohan is animating a flying saucer. He wants to make it disappear in the sky. Which tweening should he apply along with motion tween? Answer: d. Coloring Which of the following artificial intelligence technologies creates new content? Answer: a. Generative AI Animating an object from one state to another is called __________. Answer: a. Tweening Short posts and messages of which of these social media platforms are called Tweets? Answer: c. X Who coined the term Artificial Intelligence? Answer: a. John McCarthy To create a copy of a sprite on the stage, we use __________ block. Answer: d. create clone of The block touching is found in which of the following categories? Answer: d. Sensing The speed of animation is measured in which of the following? Answer: d. Frames/second Which of the following powers of computers make them capable of artificial intelligence ...
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class 7 last chapter

  A. Tick ( ✔ ) the correct option What is the main goal of intelligent security in smart cities? ✔ b. To improve surveillance and threat detection What technology is used to monitor and enhance traffic conditions on smart highways? ✔ b. Roadway Sensors Which AI technology is used for enhancing surveillance through facial identification and analysis? ✔ a. Facial Recognition B. Fill in the blanks (Words given: Security, Autonomous vehicles, Smart home, Traffic) The development of autonomous vehicles has led to the creation of vehicles that can improve traffic flow and safety. In smart cities, security technology enables real-time monitoring of surveillance cameras and can detect unusual activities or potential threats. AI in traffic management systems can analyse data from sensors and cameras to optimise traffic signals and reduce congestion. The integrati...
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7th imp

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6 imp

I. Choose the Correct Answer (0.5 × 8 = 4 Marks) Which of these is a common application of AI? Answer: c) Virtual Assistants like Siri or Alexa Which of the following is not a type of AI? Answer: c) Supervised AI Which of the following is an example of empty element? Answer: d) Both (a) and (b) The Script in Scratch is created by drag-dropping _________. Answer: a) Blocks ________ shows the final output of the animation when you run it. Answer: a) Stage Which tag is used to define the title of the web page? Answer: b) <TITLE> ________ is a malicious program that enters into a computer without the knowledge of end user. Answer: a) Virus ________ is displayed when you click on the Costumes tab next to the Code tab. Answer: b) Costumes Panel II. Fill in the Blanks (0.5 × 6 = 3 Marks) A computer connected to a network acts either as a Server or Client . E-learning means learning with the use of technology anytime and anywhere. Blocks inside the forever block are executed a...
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