Basics of computer system, Study notes of Computer science

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BASICS OF COMPUTER SYSTEM C1) INPUT DEVICES - Input devices are hardware components that allow a user to enter data, instructions, or signals into a computer. They help the computer receive information from the outside world so it can process it. . Keyboard The most commonly used input device. Used to type text, numbers, and commands . Mouse A pointing device used to interact with items on the screen. Used to click, drag, and select . Scanner Converts physical documents into digital form. Example: Scanning photos or printed documents. . Barcode Reader Reads barcodes and sends information to the computer. Example: Used in shops and supermarkets. Created with Mi Notes (0 OUTPUT DEVICES - Output devices are hardware components that display or present processed data from a computer to the user. They show the results of the work done by the computer. . Monitor The most common output device. Displays text, images, and videos on the screen Example: Watching videos, viewing documents. . Printer Produces a hard copy (printed output) on paper. Types: Inkjet printer, Laser printer Example: Printing notes, assignments. . Speakers Used to output sound from the computer. Example: Listening to music, watching movies. . Projector Displays computer output onto a large screen or wall. Example: Used in classrooms, presentations. . Plotter Used to produce high-quality graphics and large drawings. Example: Engineering designs, maps. Created with Mi Notes