Most commonly used output device in a graphics system is a video monitor. Input devices input devices are things we use to put information into a computer. An input device is any peripheral used to provide data and control signals to a computer. Pauline baker by computer graphics, c version computer graphics, c version written by donald d. Input devices pointing devices keyboard optical input devices audio. Interaction, second edition, addisonwesley, reading, mass. This adaptation of the definitive book in the field computer graphics, second edition by foley, et al. An input device is any hardware device that sends data to the. In computing, an input device is a peripheral piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or other. A hammer presses the wheel against a ribbon, which in turn makes an ink stain in the shape of the character on the paper. An input device is any tool device for entering information into a computer. Digitizer is also known as tablet or graphics tablet because it converts graphics and pictorial data into binary inputs. Input devices data glovepolhemus a modern attempt to provide the user with more degrees of freedom common in virtual reality applications polyhemus can provide six degrees of freedom. The picture shows a logitech trackball mouse, which is an example of an.
Input devices various hardware devices have been developed to enable the user to interact in the more natural manner. The text includes the straightforward explanation of complicated ideas like two dimensional and three dimensional graphics, graphics devices. This timely new version of a popular computer graphics book features the c language in programming examples to demonstrate the implementation of graphics application. Thus, a computer must have a system to receive information from the outside world and must be able to communicate results to the external world. Computer graphics chapter 3 input and interaction objectives are to learn about. Inputoutput devices and interaction department of computer. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience.
The joystick is a vertical stick which moves the graphic cursor in a direction the. A graphic tablet as digitizer is used for doing fine works of drawing and image manipulation applications. The joystick is a vertical stick which moves the graphic cursor in a direction. The computer will be of no use unless it is able to communicate with the outside world. Output can be text, numeric data, line, polygon, and other objects. Various types of input devices can be used with the computer depending upon the type of. Input devices o level computer science 2210 prepared by.
The input device converts the data into the computers own internal code. Introduction, application areas of computer graphics, overview of graphics systems, videodisplay devices, rasterscan systems, random scan systems, graphics monitors and work stations and input devices. Points and lines, line drawing algorithms, midpoint circle and ellipse algorithms. If you liked this video, computer input devices ppt, please hit the. An input device is any hardware device that sends data to a computer, allowing you to interact with and control it. Inputoutput devices are required for users to communicate with the computer. Learn about two different perspectives from which the input. For example, you can use a keyboard to type text which will then be stored in the computer. Input devices input devices any peripheral piece of computer hardware equipment used to provide data and control signals to a computer. The devices which are used to give data and instructions to the computer are called input devices. Application areas of computer graphics, overview of graphics systems, videodisplay devices, rasterscan systems, random scan systems, graphics monitors and work stations and input devices. Following are some of the important input devices which are used in a computer keyboard. Input devices an input device is anything that is used to get data into the computer.
Hardware are of two types input and output devices. Getting the right input devices for your computer system can make a world of difference in your computers performance and can improve the quality of your time spent at. Input and output devices input devices allow us to send information to the computer. Application areas of computer graphics, overview of. New input devices and media can help redress this imbalance by obtaining data from the. Output devices impact printer daisywheel similar to a ballhead typewriter, this type of printer has a plastic or metal wheel on which the shape of each character stands out in relief. Input devices are part of the four main hardware components of a computer system. The distinction between output devices and input devices. The process transforms and presents information in a visual form. A flatbed scanner works like a copy machine except that it creates a file of the document rather than a paper copy. Pauline baker is very useful for computer science and. The input devices are the hardware that is used to transfer transfers input to the computer. Display devices display devices are also known as output devices.
Graphics tablets, input devices, computer systems newegg. A scanner is a lightsensing input device that converts printed text and graphics into a digital form that can be further processed by the computer. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system. Input devices it is an electromechanical device that can be used to enter data and instructions to the computer. Devices input and output unit 4 input output devices.
The data can be in the form of text, graphics, sound, and text. Computer graphics is concerned with producing images and animations or sequences of images using a computer. Without any input devices, a computer would only be a display device and not. Pdf we provide an overview of some of our input device developments, which we.
Next came the teletype, a device with a typewriterlike keyboard on. Input devices in computer graphics linkedin slideshare. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. The longrange light pen as a headbased controller usercomputer interface. Introduction, application areas of computer graphics, overview of graphics systems, videodisplay devices, rasterscan systems, random scan systems, graphics monitors and work. An input devices converts the data and instructions into binary form that computer can understand. Images photos vector graphics illustrations videos. With 2d graphics, this proposal extends that proposal in discussing input devices, in particular, the framework to support event and interrupt handlers. Fahad khan an input device is a piece of hardware that is used to enter data into a computer. Digitizer is also known as tablet or graphics tablet because it converts graphics and. Pdf input output storages devices in computers researchgate.
Computer graphics notes pdf cg notes pdf smartzworld. Introducing variety of devices that are used for interaction. Input is usually given by clicking the mouse or typing on the keyboard. Output device display data from the memory of the computer. Unit1 basics of computer graphics darshan institute of.
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