Desktop computer , a personal computer designed to stay in one place, usually on a desk, Laptop  , a portable computer that can be used anywhere, Tablet , a small, touchscreen computer without a keyboard, Smartphone , a mobile phone with computer functions and internet access, Server , a powerful computer that provides data and services to other computers, Supercomputer , an extremely powerful computer used for complex calculations, Mainframe , a large computer used by big organizations for processing data, Embedded computer  , a computer built into another device to control it, Monitor  , a screen that displays information from a computer, LCD monitor , a flat screen that uses liquid crystal display technology, LED monitor , a monitor that uses LED backlighting for better brightness, Touchscreen , a screen that responds to touch input, Resolution , the number of pixels on a screen (image quality), Refresh rate , how many times per second the screen updates, Aspect ratio , the proportional relationship between width and height of the screen, Pixel , the smallest unit of a digital image, Keyboard , a device used to type text into a computer, Mouse , a device used to control the cursor on the screen, Monitor , a device that shows visual output, System unit , the main body of a computer containing internal components, Printer  , a device that produces a paper copy of digital documents, Scanner  , a device that converts physical documents into digital form, Speakers  , devices that produce sound from a computer, Webcam , a camera used for video communication.

Computer engineering

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