Monitor is the most commonly used output device used to display results of processing. Monitor and the printer are the commonly used output devices. The audio output is the ability of the computer to output sound. An input device is a hardware device that is used to provide input data. When the computer gives the printout, it is the output. Input and output devices 2 goals provide practical introduction to the hardware required for virtual environment and 3d interaction examine common and state of the art io devices advantages and disadvantages discuss how different io devices affect interface design. Crt monitor, tftlcd monitor, ipslcd monitor, led monitor, touch screen as an output device, multimedia projector, laser printer, inkjet printer, dot matrix printer, wide format printer, 3d. Crt monitor, tftlcd monitor, ipslcd monitor, led monitor, touch screen as an output device, multimedia projector, laser printer, inkjet printer, dot matrix printer, wide format printer, 3d printer, speakers, motors, buzzers, heaters, lightslamps. Student notes page 1 of 7 k aquilina input devices input is any data or instructions entered into the memory of a computer. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system.
Conscious output is muscularly mediated communications. Inputoutput devices and interaction computer science tufts. 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. To enter information and issue commands, you use input devices. An input devices converts the data and instructions into binary form that computer can understand. Cpu controls all the connected input and output devices. Jan 05, 2017 input devices are used to give data and instructions to the computer. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer. Each iop controls and manage the inputoutput tasks. Input and output bridge the chasm between a computers inner world of bits, and the real world perceptible to the.
Examples of io devices are cd drives, dvd drives, usb drives, hard disk drives hdds, and floppy disk drives. Keyboard the most common and very popular input device which helps in inputting data to the computer. A temperature transducer is an example of an analog input device. The distinction between output devices and input devices becomes even more blurred in the real world. Computer devices computer input and output devices 992019 designed by. Pictures on monitor are formed with picture elements called pixel. Inputoutput devices are required for users to communicate with the computer. The microphone is used for various applications like adding sound to a multimedia presentation or for mixing music. The size of a monitor is measured in inches diagonally across the screen.
So dear reader i have provided top expected gk questions from input and output device of computer. The iop is similar to cpu except that it handles only the details of io processing. For example, as you can see in the top half of the image, a keyboard sends electrical signals, which are received by the computer as input. Computer output devices receive information from the computer, and carry data that has been processed by the computer to the user. It gives a detailed listing of the various types of input devices and the output devise. Input and output devices school of information technology. Nov 27, 2018 input output device based mcq mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs. Monitor, printer, plotter, speaker, and multimedia projector. Microphone gives sound or voice input to the computer. It forms images from tiny dots, called pixels that are. They are divided into two categories 1 manual input devices devices that need human involvement to input data 2 automatic input devices devices that do not need human involvement to input data. Many of these are less complex versions of io devices that have been available for larger computer systems. Mcq input and output device of computer with answers pdf. These inputoutput devices are also known as peripherals since they surround the cpu and memory of a computer system.
In general, the more pixels often expressed in dots per inch, the sharper the image. Keyboards allow a computer user to input letters, numbers, and other symbols into a computer. Any device has to be connected to the cpu to receive or send information. Analog signals are continuous and can have any number of statesnot just two, as with discrete digital signals. Pdf computer input and output devices ingamule siraji. When i draw using a mouse, it is an input to the computer. Explain different types of output devices perfect computer. 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. The input devices translate the information into the form understandable by computer. 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. What is the difference between an input and output device.
It only processes the information given by the input devices and sends the result to the output devices. By inputoutput analysis i mean the latter two of these three types of inputoutput work, and it is to them that this paper is devoted. Keyboards allow a computer user to input letters, numbers, and other symbols into a computer uses an arrangement of buttons or keys. Output device can produce the final product of machine processing into a form usable by humans. Notes for 3rd class computers input and output devices. Free notes for 3rd class computers input and output devices. Nov, 2018 however, some devices can accept input and display output, and they are referred to as io devices input output devices. Pointing devices a pointing device, or sometimes called a pointing tool, is a hardware input device that allows the user to. Output devices provide data in myriad different forms, some of which include audio, visual, and hard copy media.
Following are few of the important output devices which are used in a computer. Now a day computer is one of the most important field for every examinations. Introduction input and output devices are very important for computers, without them,computers will not be as functional. Output devices monitor features display resolution the resolution of a monitor indicates how densely packed the pixels are.
There are two other commonly used mechanisms for implementing io operations. Any data or instruction entered into the computer is known as input. Keyboard and mouse are the most commonly used input devices. The computer transmits data to the drive, where it is saved and can be later accessed. Devices input and output unit 4 input output devices. The output device provides the output of data or information. Input devices keyboard one of the primary input devices used with a computer. Magnetic ink card readermicr micr input device is generally used in banks because of a large number of cheques to be processed every day. Inputoutput devices dont only produce output, but can also be used as storage and input devices. Out put devices are used to display results of processing to the user. An input device helps you to communicate with the computer.
Top 50 input output reasoning questions for ibps clerk mains 2017. 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. An input device is a hardware device that is used to provide input data instructions to a computer so that it can be processed. Some commonly used inputoutput devices are listed in table below. An input device is any peripheral used to provide data and control signals to a computer. An input device is any hardware component that allows a user to enter data and instructions into a computer. Input devices as well as output devices are a neccessity in order to ensure that data is entered into a computer to be processed and the results output. Each iop controls and manage the input output tasks. The need for input and output devices teachers notes time min activity further notes 5 introduce the topic. Switches, lamps valves etc common characteristics of io modules removable terminal blocks retractable wiring is connected to the terminal block tilblkil ditth dlterminal block is plugged into the module.
Data that has been processed into a useful form, called information p. Dec 29, 2016 an input devices converts the data and instructions into binary form that computer can understand. These scanned images are then used in computer aided design cad, or sent to a d printer to take a 3d printout. The keyboard looks very similar to the keyboards of electric typewriters, with some additional keys. Input devices an input device is any hardware component that allows you to enter data and instructions onto a computer. Output devices are part of the 4 main hardware components of a computer system. Dear aspirant, as you know computer is very important section to get a good score for bank exam. Once data has been input into a computer system and processed, it is now useful information.
The keyboard is the most common and widely used input device. An input output processor iop is a processor with direct memory access capability. Top 50 inputoutput reasoning questions for ibps clerk mains 2018 free pdf download. The purpose of the output devices is to translate data and information from electrical impulses to a humanreadable format. Output devices are those devices which display the required result in simple words to the users. 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. Output devices output devices are used to receive information from the computer either in softcopy or hard copy. In this, the computer system is divided into a memory unit and number of processors.
The distinction between output devices and input devices becomes even. Chapter 5 inputoutput devices computer science igcse. Output devices an output device is any hardware component that conveys information to one or more people. 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. Input device translates words, sounds images, and actions that people understand into symbols that the system unit can process.
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 devices are available. In this section you will learn about the different types of output devices that are commonly in use. Short questionsopen long questionopen 9th class notes links. These devices are designed to read information into or out of the memory unit upon command from the cpu and are considered to be the part of computer system. This chapter will show you how inputoutput devices work. Input devices pointing devices keyboard optical input devices audio input device video inpu device. The chapter has given an introduction to the inputoutput devices. Input devices are used to give data and instructions to the computer. Output devices are used to display the result or information on the computer. Dear readers, ibps clerk 2018 examination is approaching very shortly, after seeing the analysis of this year ibps exams you all may conclude that more practice will be need to manage the time efficiently and to score good marks. Input devices include keyboards, mouse, digital camera and light pen. Monitors may be monochrome that will display results. Top 50 input output questions for ibps clerk mains 2018. An input device is a piece of hardware that is used to enter data into a computer.
The following is a list of the most common input devices which are nowadays found in a computer system. The devices are usually used for display, projection, or for physical reproduction. An output device is an electromechanical device which accepts data from a computer. An inputoutput processor iop is a processor with direct memory access capability. Input and output devices input devices allow us to send information to the computer.
Printer is an output device, which is used to print information on paper. Input devices it is an electromechanical device that can be used to enter data and instructions to the computer. Keyboard keyboard is the most common input device used for entering text data directly into a computer. Input is usually given by clicking the mouse or typing on the keyboard. Video input devices are used to entering full motion video recording into a computer. A color monitor can display from 16 to over 1 million different colors. Inputoutput modules overview inputoutput io modules provide physical interface between plc processor and field devices. Physics notes full book pdf mathematics notes full book pdf biology notes full book pdf chemistry notes. It forms images from tiny dots, called pixels that are arranged in a rectangular form. 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.
Mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs. An input device is any tool device for entering information into a computer. Input and output devices of computer computer notes. 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. Ingamule siraji 1 a computer is an electronic device that works. Input device is a device through which data and instruction are entered into computer system. The devices which are used to input the data and the programs in the computer are known as input devices. Output devices monitor printer audio output projector 16. Virtually all external devices have buffers, control signals, status signals, and data bits. These scan through very thin slices of the object by the use of xrays, gamma rays and radio frequencies. Six widely used input devices are the keyboard, mouse, microphone, scanner, digital camera and pc video camera. Microphone is an input device to input sound that is then stored in digital form. Aug 27, 2018 as you know computer is very important section to get a good score for bank exam.
Most modern monitors can display 1024 by 768 pixels, the svga standard. Characteristics of impact printers are the following. A sheet of paper can be used to both record ideas input and display them output. Input or output devices that are connected to computer are called peripheral devices. This transformation is performed by input interface. Sound card plays contents of digitized recordings, speakers attached to sound card.