Theme: Peripherals

2. Types of peripherals

2.1 Input devices

Input devices are those devices through which information can be entered into a computer. Their main purpose is to implement the impact on the PC. The variety of input devices produced has given rise to entire technologies: from tactile to voice. Although they work on different principles, they are intended to implement one task - to allow the user to communicate with their computer. KEYBOARD The main input device of most computer systems is the keyboard. Until the voice recognition system can reliably perceive human speech, the dominant position of the keyboard is unlikely to change. SCANNER A scanner is a device that, by analyzing an object (usually an image, text), creates a digital copy of the image of the object. The process of obtaining this copy is called scanning. Mouse Manipulator and coordinate device of the computer. It is an addition to the keyboard and a necessary piece of equipment when using the graphical interface. Joystick Computer coordinate and manipulator device in the form of a handle with buttons. Used in simulators and in conjunction with game programs. A variety of game joysticks are “gamepads”, made in the form of small-sized panels, equipped with functional buttons and switches. Webcam A digital video or still camera capable of capturing images in real time for further transmission over the Internet.

2.2 Output devices

Peripheral output devices are designed to output information in the format required by the operator. Among them there are mandatory (included in the basic PC configuration) and optional devices. MONITOR The monitor is a necessary information output device. The monitor (or display) allows you to display alphanumeric or graphical information in a form that is easy to read and control by the user. PRINTERS A printer is a widespread device for outputting information to paper, its name is derived from the English verb to print - to print. The printer is not included in the basic PC configuration. PROJECTION TECHNOLOGY Multimedia projectors have firmly entered our lives at the end of the 20th century, and now it is impossible to imagine many areas of human activity without them. These are the educational process, presentations, show business and home cinema. A multimedia projector allows you to play on a large screen information received from a computer, VCR, camcorder, camera, DVD player, game console.