Inputoutput devices allows the addition of devices for input and ppt. They are required to enter data and instructions in a computer so that the computer can. Computer input and output devices research article from world of invention. An input device is any tool device for entering information into a computer. In computing, inputoutput or io or, informally, io or io is the communication between an information processing system, such as a computer, and the outside world, possibly a human or another information processing system. Difference between input devices and output devices. Inputs are the signals or data received by the system and outputs are the signals or data sent from it. In this lecture we will discuss the various input and output devices that are used in 3d. In this way we get results by the pc output devices. Out put devices are used to display results of processing to the user. The first part of the lecture will describe a number of output devices that stimulate the.
Input devices keyboard one of the primary input devices used with a computer. Monitors and printers are two of the most commonly used output devices used with a computer. Output generated by output device classified into two types. Output is a processed data that is otherwise called information. Output devicescomputer fundamentalslecture notes, study notes for. They are required to enter data and instructions in a computer so that the computer can process that data and provide the result to the user. Digitizer digitizer is an input device which converts analog information into digital form. Printer is an output device, which is used to print information on paper. See ernst kruijffs application notes for more information. Input and output devices introduction the unit 4 presents the information of input and output devices. Worksheets are work, input and output devices, input and output tables, gcse ict work, work 2, the need for input and output devices, work 3, peripheral devices. This data is given to the computer by using particular devices named computer input devices. Displaying all worksheets related to output devices. A framework for research in inputoutput devices and interaction styles.
Pdf this report, such as command history redo, undo, extended to. Output devices or output units do not compute or process anything. Input devices pointing devices keyboard optical input devices audio input device video inpu device. Know the main characteristics, purposes and suitability of the devices and understand their principles of operation. An output device is any peripheral that receives data from a computer, usually for display, projection, or physical reproduction. Device that transmits and receives documents over telephone lines p. The distinction between output devices and input devices becomes even more. Input and output devices bangladesh open university. Components of computer, output devicescomputer fundamentals. Special software programs called screen readers attempt to identify and interpret what is being displayed on the screen and speech synthesizers convert data to vocalized sounds or text. However, nearly all examples of humancomputer interaction require both input and output to do anything. Output devices are those devices which display the required result in simple words to the users. Computer output devices receive information from the computer, and carry data that has been processed by the computer to the user.
An output device is any device used to send data from a computer to another device or user. Inputoutput devices allows the addition of devices for input and output purposes via ports on the motherboard or today by usb. Most modern monitors can display 1024 by 768 pixels, the svga standard. Characteristics of impact printers are the following. Introduction an output device is an electromechanical device that accepts data from a computer and translates them in suitable form for the users. These examples of output devices also include inputoutput devices. Thus, most output devices used by humans are in these categories. Student notes page 1 of 7 k aquilina input devices input is any data or instructions entered into the memory of a computer. But when it comes to know about them and how they work, such devices are categorized as input and output devices. Input devices are part of the four main hardware components of a computer system.
Output devices monitor features display resolution the resolution of a monitor indicates how densely packed the pixels are. Monitor is the most commonly used output device used to display results of processing. Those devices just display the results in hard copy or soft copy. This encyclopedia article consists of approximately 4 pages of information about computer input and output devices. Pdf interaction styles and inputoutput devices researchgate. The audio output is the ability of the computer to output sound. An output device is any piece of computer hardware equipment which converts information into humanreadable form. In general, the more pixels often expressed in dots per inch, the sharper the image. Output devices notes on data entry for nios online course. The inputoutput system module 2 3 analog devices in contrast to discrete devices, analog devices are input or output devices that provide or receive analog signals.
Dear aspirant, as you know computer is very important section to get a good score for bank exam. Output devices generate computer output that can be broadly classified into two types. Fahad khan an input device is a piece of hardware that is used to enter data into a computer. Output devices output devices can adopt different shapes and styles, which are used to give the output of the processing of data. Inputoutput devices and interaction department of computer. Speech output systems can be used to read screen text to computer users. Jinfu li, ee, ncu 3 content coverage main memory system inputoutput system arithmetic. Sound card plays contents of digitized recordings, speakers attached to sound card. The image below shows where input dev ices fit into a computer system. It can be text, graphics, tactile, audio, and video some of the output devices are visual display units vdu i.
Inputoutput devices constitute a major part of a computer system. Light pen track ball graphic tablet magnetic ink card readermicr. Monitors, commonly called as visual display unit vdu, are the main output device of a computer. The output device provides the output of data or information. Click on popout icon or print icon to worksheet to print or download.
Speakers enhances the value of educational and presentation products. As we saw in the previous blog about the display output devices and their ports. The input devices translate the information into the form understandable by computer. Keyboard the most common and very popular input device which helps in inputting data to the computer. It forms images from tiny dots, called pixels that are. Input devices bring information into the computer and output device send. Monitor monitor is perhaps the most important output device because people interact. Research computer input and output devices world of. For example, the image shows an inkjet printer, an output device that can make a hard copy of anything shown on the monitor. Input devices o level computer science 2210 prepared by. So that we can say in simple term, a computer input device is a hardware component that is used to enter data and instruction into the. Pos scanner are hardware devices capable of reading a barcode and printing out the details of the product andor logging that product into a database so a company can easily keep track of its inventory.
Device that takes image from a computer screen and projects it onto a larger screen p. Devices input and output unit 4 input output devices. A number of inputoutput devices are used with many types of microcomputers. Without io devices, a user cannot communicate with the computer. A specailized output device for producing charts, maps, and very highquality drawings is a. Keyboards allow a computer user to input letters, numbers, and other symbols into a computer. Three dimensional displays note that this refers to a threedimensional. Input is usually given by clicking the mouse or typing on the keyboard. The purpose of the output devices is to translate data and information from electrical impulses to a humanreadable format. Output deviceoutput devices return processed data that is information, back to the user. Monitors and printers are two of the most commonlyknown output. About input and output devices some examples of input and output devices lesson 2 input and output devices input devices allow us to send information to the computer. A color monitor can display from 16 to over 1 million different colors. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer.
Following are few of the important output devices which are used in a computer. Digitizer can convert a signal from the television or camera into a series of numbers that could be stored in a. Analog signals are continuous and can have any number of statesnot just two, as with discrete digital signals. Output devices are those peripheral devices that allow a user to retrieve information from a computer. A new type of output device is been developed these days, known as speech synthesizer, a. Many of these are less complex versions of io devices that have been available for larger computer systems.
When i draw using a mouse, it is an input to the computer. Most computer data output that is meant for humans is in the form of audio or video. The following is a list of the most common input devices which are nowadays found in a computer system. Impact printers nonimpact printers impact printers the impact printers print the characters by striking them on the ribbon which is then pressed on the paper.
The keyboard looks very similar to the keyboards of electric typewriters, with some additional keys. Pointing devices a pointing device, or sometimes called a pointing tool, is a hardware input device that allows the user to. The devices are usually used for display, projection, or for physical reproduction. Output devices provide data in myriad different forms, some of which include audio, visual, and hard copy media. Output device can produce the final product of machine processing into a form usable by humans. An input device is used to bring data into the system. 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 rotation and translation head mounted display although primary a display device, it can also track position and orientation like polhemus space ball six degrees of freedom sphere. The size of a monitor is measured in inches diagonally across the screen. It gives a detailed listing of the various types of input devices and the output devise. Monitor, printer, plotter, speaker, and multimedia projector. Output devices plotters a plotter is an output device similar to a printer, but normally allows you to print larger images.
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. Secondary storage unit output devices the configuration of a basic computer. Examples include monitors, projectors, speakers, headphones and printers. In this blog we will discuss about the other inputoutput devices which we attach to our systems to expand its. Other common input output devices computing technology. An output device is an electromechanical device which accepts data from a computer and translates them into a human acceptable form. An input device is any peripheral used to provide data and control signals to a computer.
A temperature transducer is an example of an analog input device. Input and output devices are required for users to communicate with the computer. Displaying all worksheets related to output device. Input and output devices allow the computer system to interact with the outside world by moving data into and out of the system. Input devices input is any data or instructions entered into the memory of a computer. Input devices it is an electromechanical device that can be used to enter data and instructions to the computer. Speech synthesisers gives you the ability to not only to display text on a monitor but also to read the text to you. Following are few of the important input devices which are used in a computer. Monitor or display devices are used to get output on screen. An input device is any hardware component that allows a user to enter data and instructions into a computer. Worksheets are work, input and output devices, work 2, name class date maximum marks 7 work input, work 3, gcse ict work, parts of a computer class i iv and v thinking of, computer hardware software work.
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