Functionality of Computer Hardware PDF

## Functionality of Computer Hardware ### Keyboard * An input device that is used to input text, characters, and other commands into a computer device. * Instead of a physical keyboard, users can also enter data via an on-screen keyboard. ### Mouse * A pointing device that allows users to inter...

## Functionality of Computer Hardware ### Keyboard * An input device that is used to input text, characters, and other commands into a computer device. * Instead of a physical keyboard, users can also enter data via an on-screen keyboard. ### Mouse * A pointing device that allows users to interact with a computer's graphical user interface (GUI) by moving a cursor on the screen and selecting objects or performing actions. * The underside of the mouse contains an optical or laser sensor that tracks the movement of the mouse across a flat surface. ### Printer * It takes electronic data from a computer or other digital device and transfers that information onto a physical medium, creating a tangible representation of the digital content. * Printers are commonly used for creating hard copies of documents, photographs, artwork, and other visual materials. * They come in various types, such as inkjet, laser, and dot matrix printers, each using different technologies to transfer ink or toner onto the paper to create the printed output. ### Monitor * An output device that visually presents digital information, graphics, and images generated by a computer or other electronic device. * A softcopy refers to digital information or content that is displayed on a screen or monitor. ### Projector * An output device that projects an image onto a large surface, such as a white wall or projection screen. * It may be used as an alternative to a monitor or television when showing video or images to a large group of people. ### Digital Camera * An electronic device that captures and stores photographs or videos as digital files. * Digital cameras use sensors to convert light into electronic signals that can be stored and processed digitally - allows users to view, edit, and share their photos and videos on various devices, including computers, smartphones, and tablets. ### Scanner * The primary function of a scanner is to input physical content into a digital format. * Certain types of scanners can also output physical copies, like printing and copying, making them a versatile device with both input and output capabilities. ### External Hard Disk * An external hard drive is a storage device located outside of a computer that is connected through a USB cable or wireless connection. ### Speaker * An output device used to produce audio output/sound that can be heard by the listener. * It can be built into the motherboard or can be attached as external units. ### Headphone * Headphones originally consisted of one speaker for each ear, connected by a band over the head. ### Headset * A pair of headphones with a microphone attached. * While headphones can only be used as a listening device, a headset can be used as a listening device and a recording device through recording through its microphone. ### Earphone * A device that is worn over or inserted into the ear and is used for listening to something (such as music or a radio). ### Microphone * To input sound that is then stored in a digital form.