INPUT AND OUTPUT PERIPHERALS OF A COMPUTER. An input device is any hardware device that sends data to a computer, allowing you to interact with and control. - презентация

1 INPUT AND OUTPUT PERIPHERALS OF A COMPUTER

2 An input device is any hardware device that sends data to a computer, allowing you to interact with and control it. The picture shows a Logitech trackball mouse, which is an example of an input device. The most commonly used or primary input devices on a computer are the keyboard and mouse. However, there are dozens of other devices that can also be used to input data into the computer.

3 Pointing devices are the most commonly used input devices today.A pointing device is any human museo interface device that allows a user to input spatial data to a computer. In the case of mouse and touchpads, this is usually achieved by detecting movement across a physical surface. Analog devices, such as 3D mice, joysticks, or pointing sticks, function by reporting their angle of deflection. Movements of the pointing device are echoed on the screen by movements of the pointer, creating a simple, intuitive way to navigate a computer's graphical user interface P MOUSE

4 KEYBOARD 'Keyboards' are a human interface device which is represented as a layout of buttons. Each button, or key, can be used to either input a linguistic character to a computer, or to call upon a particular function of the computer. They act as the main text entry interface for most users. Traditional keyboards use spring-based buttons, though newer variations employ virtual keys, or even projected keyboards. It is typewriter like device composed of a matrix of switches.There also happens to be another keyboard that is like an input device for musical instrument which helps to produce sound.

5 An output device is any piece of computer hardware equipment which converts information into human-readable form. It can be text, graphics, tactile, audio, and video. Some of the output devices are Visual Display Units (VDU) i.e. a Monitor, Printer, Graphic Output devices, Plotters, Speakers etc. A new type of Output device is been developed these days, known as Speec synthesizer, a mechanism attached to the computer which produces verbal output sounding almost like human speeches OUTPUT DEVISE

6 M O N I T O R S A display device is the most common form of output device. It presents output visually on computer screen. The output appears temporarily on the screen and can easily altered or erased, it is sometimes referred to as soft copy also. The display device for a desktop PC is called monitor. With all-in-one PCs, notebook computers, hand held PCs and other devices; the term display screen is used for the display device. The display devices are also used in home entertainment systems, mobile systems, cameras and video games. Display devices form images by lighting up the proper configurations of pixels. In short the display devices are organized in the form of Pixels, & pixels are arranged in the form of Matrix, a 2-dimensional matrix which is organized as rows & columns.

7 MONITOR

8 In computing, a printer is a peripheral device which makes a persistent representation of graphics or text, usually on paper.While most output is human-readable, bar code printers are an example of an expanded use for printers. The different types of printers include 3D printer, inkjet printer, laser printer, thermal printer, etc

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