Know with kiran

I. Choose the Correct Answer Which of the following is an output device? a) Keyboard b) Mouse c) Monitor d) Scanner Answer: c) Monitor Which device is used to type letters and numbers? a) Mouse b) Keyboard c) Printer d) Speaker Answer: b) Keyboard Which of the following is a storage device? a) Hard Disk b) Monitor c) Mouse d) Speaker Answer: a) Hard Disk Which key is used to move to a new line while typing? a) Shift Key b) Enter Key c) Spacebar d) Caps Lock Answer: b) Enter Key Which device is used to print documents on paper? a) Scanner b) Printer c) Monitor d) Keyboard Answer: b) Printer II. Fill in the Blanks (Keyboard, Mouse, Output, Monitor, Hardware) The physical parts of a computer are called __________. Answer: Hardware A __________ is used to point and click on items on the screen. Answer: Mouse A __________ is used to type text into the computer. Answer: Keyboard The result given by a computer is called __________. Answer: Output A __________ displays information on the scree...

Test Yourself – Answers A formula may need which of the following to perform calculations? d. All of these To select adjacent cells, which of the following keys is used? d. Shift Absolute referencing is applied using which of the following letter? b. $ Here are all the answers from the worksheet. A. Choose the correct answer The values passed to a function are called Arguments . Answer: b. Arguments The second argument in the IF( ) is applicable when the given expression evaluates to True . Answer: a. True The error code #### indicates Column width too small to display result . Answer: a. Column width too small to display result B. Fill in the blanks ( Mixed, Highest, Join, Condition to check, F4 ) The Max function returns the Highest value in a given cell range. The & operator is used to Join two or more text strings. The cell address B$5 is an example of Mixed cell reference. The IF() takes arguments: Condition to check , value if true, value if false. The key to cycle throug...

📘 Computer Notes – Class 3 💻 What is an Operating System (OS)? An Operating System (OS) is a special software that helps the computer to work. 👉 It controls all parts of the computer. 👉 It helps us to use the computer easily. ✅ Examples of OS: Windows Linux Mac OS 🖥️ Types of Operating System 1. CUI (Character User Interface) We type commands using keyboard No pictures Example: DOS 2. GUI (Graphical User Interface) We use mouse to click on pictures (icons) Easy to use Example: Windows 🪟 Windows Desktop When we start the computer, we see the Desktop . Desktop contains: Wallpaper Icons Taskbar 🎨 Wallpaper Background picture of the desktop We can change it 🧩 Icons Small pictures on desktop Used to open files or programs 📊 Taskbar The taskbar is at the bottom of the screen. Parts of Taskbar: Start...

1. How did microprocessor revolutionize computing? The invention of the microprocessor changed computers in many ways: Computers became smaller in size They became faster Cost became cheaper People could use computers at home and school It led to the invention of personal computers (PCs) 2. List any 5 emerging technologies Some modern (emerging) technologies are: Artificial Intelligence (AI) Robotics Internet of Things (IoT) Virtual Reality (VR) Cloud Computing Explain one (Artificial Intelligence): Artificial Intelligence (AI) means machines that can think and learn like humans . Example: Voice assistants like Alexa or Google Assistant. AI helps in games, robots, healthcare, and smart devices . 3. Key characteristics of a computer Speed – works very fast Accuracy – gives correct results Storage – stores large amount of data Diligence – never gets tired Versatility – can do many types of work 4. Four limitations of a computer No intelligence – cannot think on its own No feelings...

 Here is a Class 7 level note with simple definitions, examples, and images for better understanding 👇 📘 Computer Ports & External Hardware (Class 7 Notes) 🔌 What is a Port in Computer? A port is a connection point in a computer where external devices are plugged in. 👉 Example: You connect a keyboard or pen drive using a port. 🖥️ Types of Computer Ports 🔹 HDMI Port Used to connect monitor, TV, or projector Sends both audio + video 👉 Example: Connecting laptop to TV 🔹 USB Port Used to connect pen drive, keyboard, mouse Most commonly used port 👉 Example: Plugging a pen drive 🔹 Ethernet Port Used for internet connection using cable 👉 Example: LAN cable connection 🔹 Display Port Used to connect monitor with high-quality video 🔹 Audio Jack Used for headphones, speakers, microphone 🔹 Thunderbolt Port Very fast port for data transfer and display 🔹 PS/2 Port Old type port for keyboard and mouse 🖱️ External Hardware Devices 👉 Devices connected from outside the compute...

📘 DATA AND INFORMATION 🔹 What is Data? Data is a collection of raw facts and figures. 👉 Example: 50, 70, 90 (marks only numbers = data) Names like Ram, Sita 🔹 What is Information? Information is processed data that gives meaning. 👉 Example: “Ram got 90 marks” (this is meaningful → information) 📁 FILE 🔹 What is a File? A file is a collection of data stored in a computer. 👉 Examples: A document file (notes) A picture file A music file 🔹 Different File Formats File format tells the type of file. 👉 Examples: .docx → Word file .jpg → Image file .mp3 → Audio file .mp4 → Video file .pdf → Document file 📂 FOLDER 🔹 What is a Folder? A folder is a place where files are stored and organized. 👉 Like a school bag that keeps books neatly. 🛠️ HOW TO CREATE A FOLDER (Steps) Right-click on desktop Click New Click Folder Type folder name Press Enter 🔄 OPERATIONS ON FOLDER / FILES 🔹 1. Open a Folder 👉 Steps: Double-click on the folder OR Right-click → Click Open 🔹 2. Delete a Folder/Fil...