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