Difference between input devices and output devices. The input devices are the hardware that is used to transfer transfers input to the computer. In this type of printer, laser beam technology is used to print the text or graphics on the paper. Output device display data from the memory of the computer. The audio output is the ability of the computer to output sound. The devices which are used to input the data and the programs in the computer are known as input devices. It can be text, graphics, tactile, audio, and video. Digitizer is also known as tablet or graphics tablet because it converts graphics and pictorial data into binary inputs. When you draw on the tablet with the special pen never use an ink pen or pencil. Thanks to advances in computer graphics hardware and algorithms, virtually all new desktop machines available today have sophisticated fullcolor displays with. Input devices input is any data or instructions entered into the memory of a computer.
Virtual environments sutherland, 1968 brooks, 1988 and interactive 3d graphics hix. The design is sent to the plotter through a graphics card, and the design is formed by using a pen. Inputoutput devices are required for users to communicate with the computer. In order to save graphics to an image file, there are three steps in r you can create a graphics device of png format using png, jpg format using jpg and pdf format using pdf. These examples of output devices also include inputoutput devices.
Input and output devices make up the hardware interface between a computer and a scanner or 6dof controller. Learn about two different perspectives from which the input devices are considered. Output devices give the computer the ability to provide us with necessary information. Pdf input output storages devices in computers researchgate. Two raster display devices crt and lcd graphics card selection graphics card is as important as the cpu, ram and hard drive for cad, video, or graphics applications. For graphics, the numbers represent x,y position in a 2.
Warzone 41 huge tips to instantly get better modern warfare battle royale. Input and output devices can also be written as io devices. Virtually all external devices have buffers, control signals, status signals, and data bits. D student brown university, department of computer science providence, rhode island lead consultant and founder. Output devices examples of output device printer monitor speakers projector. The chapter has given an introduction to the inputoutput devices. A pressure sensitive pad is plugged into the computer.
For example, a higherquality graphics card can be plugged in, and the built. It forms images from tiny dots, called pixels that are arranged in a rectangular form. The monitor displays the video and graphics information generated by the computer. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system. Hold or flush output on an onscreen graphics device. List of input devices, output devices and both input. Data that has been processed into a useful form, called information p. Chapter 4 input and output oakton community college. Microphone microphone is an input device to input sound that is then stored in digital form. Input devices bring information into the computer and output device send. Input and output devices input devices allow us to send information to the computer. Devices input and output unit 4 input output devices. Output devices serve to read some data from a computer. Graphics software two classifications general programming package specialpurpose application package.
When the computer gives the printout, it is the output. Have you checked graphical data analysis with r programming method to save graphs to files in r. When i draw using a mouse, it is an input to the computer. Input devices that read printed text and graphics and transfers them to a computer in digital form data is typically input as a single image can scan photos, documents, images types of scanners flatbed portable 3d receipt and business card scanners understanding computers. The tablet and pen can also be used like a mouse to move the cursor and click. In computing, an input device is any peripheral piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or other information appliance.
The data entered through input device can be some text, some graphical image or symbol, sound etc, depending on the form of the raw data the various input. Here i am going to share you about list of basic input devices, output devices and both inputoutput devices related to computer. The above pdf is based on input and output devices and contains the following. What are graphical input and output devices in a computer. Input devices various hardware devices have been developed to enable the user to interact in the more natural manner. Pdf computer input and output devices ingamule siraji.
Text consists of characters letters, numbers, punctuation marks, or any other symbol requiring one byte of computer storage space that are used to create words, sentences, and paragraphs. Some of the output devices are visual display units vdu i. Graphics input devices graphics output devices introduction input devices. Output can be text, numeric data, line, polygon, and other objects. 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 information appliance. The user sees the result after processing of data by the computer through output devices. The data can be in the form of text, graphics, sound, and text.
Input devices these get data into the computer processor this does something with the data to make it useful information output devicesthese show the results of processing. An input devices converts the data and instructions into binary form that computer can understand. It gives a detailed listing of the various types of input devices and the output devise. Introducing variety of devices that are used for interaction. The monitor displays the video and graphics information generated by the computer through the video card. Computer graphics chapter 3 input and interaction objectives are to learn about. These pins available on a processor can be programmed to be used to either accept input or provide output to external devices. Input and output devices of computer computer notes. Most often used input devices are the keyboard, mouse, webcam, scanner and microphone.
Pdf assinment find, read and cite all the research you need on researchgate. Using a computer may seem an easy task because of the tools that are attacked with the device and helps in managing the system properly. These devices may also be used to move the cursor around a screen to facilitate input to a graphical display. Brown university compter graphics lab input and output devices for 3d interaction joseph j laviola jr ph. A general graphics programming package provides an extensive set of graphics functions that can be used in highlevel programming languages.
Lecture 2 input output devices, raster graphics youtube. 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. I work at, so i am a little biased, but i believe it is the best work management software. They are locators and selectors a joystick has two potentiometers, they have been attached to a single lever. Monitors graphic plotter printer 992019 designed by. An output device is any piece of computer hardware equipment which converts information into humanreadable form.
Input devices as well as output devices are a neccessity in order to. Following are few of the important output devices which are used in a computer. This transformation is performed by input interface. These inputoutput devices are also known as peripherals since they surround the cpu and memory of a computer system.
Introduction piece of hardware by which a user enters information into a computer system mouse, trackball, joystick, voice systems, touch screens, others a major goal in designing graphics software libraries is deviceindependence enhances portability of the application. The use of general purpose inputoutputs is a realization of open ended transmission between devices on an embedded level. Graphics card selection graphics card is as important as the cpu, ram and hard drive for cad, video, or graphics applications. Before a computer can process your data, you need some method to input the data into the machine. Input and output devices used for computer graphics. Additional inputoutput can be added by plugging in controller cards into the motherboards pci or pci express slots. Output devices typically include the monitor, speaker and printer. Cairographicsbased svg, pdf and postscript graphics devices check. How do you ever wonder how information gets in your computer and how comes out in a form you can use. Inputoutput devices dont only produce output, but can also be used as storage and input devices. Graphics tablet pen drive cddvd digital camera an output device is used to send data out of the system. A touch screen is an input output touchsensitive display. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer. Plotter is an op device that is used to produce graphical op on papers.
Examples of input devices include keyboards, mice, scanners, digital cameras and joysticks. Input and output devices input and output devices joseph j. Input and output devices 3 lecture outline output devices visual displays audio output tactile and haptic output input devices discrete event devices continuous event devices combination devices speech input the first part of the lecture will describe a number of output devices that stimulate the. It is generally used with engineering applications, and essentially draws a given image using a series of straight lines. Sound card plays contents of digitized recordings, speakers attached to sound card. But when it comes to know about them and how they work, such devices are categorized as input and output devices. The speed of this printer is very fast and it gives out very fine quality prints. Example gl graphics library system on silicon graphics equipment. Input is usually given by clicking the mouse or typing on the keyboard. An input device is any hardware component that allows a user to enter data and instructions into a computer.
Some types of output are text, graphics, tactile, audio, and video. Computer inputoutput ports and interfaces 1 terms and abbreviations. Output devices are part of the 4 main hardware components of a computer system. The jo ystick is a vertical stick which moves the graphic cursor in a. More details of font families and encodings and especially handling text in a nonlatin1 encoding and embedding fonts can be found in paul murrell and brian ripley 2006 nonstandard fonts in postscript and pdf graphics. External devices are not connected directly to the system bus because they have a wide range of control logics, as well as data transfer speeds and formats. A trackball is similar in operation to the joystick. Lecture 2 input output devices, raster graphics nptelhrd. Page 1 cover i spy game page 2 instructions i spy game page 34 clue sheet i spy game other activities page 5 unscramble page 6 word search page 7 page 8 cross word puzzle page 9. Inputoutput devices and interaction department of computer. The device you use will depend on what form this data takes be it text, sound, artwork, etc. A touch screen is an inputoutput touchsensitive display. Output device can produce the final product of machine processing into a form usable by humans.
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