An input device is used to bring data into the system. The computer transmits data to the drive, where it is saved and can be later accessed. Examples of io devices are cd drives, dvd drives, usb drives, hard disk drives hdds, and floppy disk drives. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter ii.
Any device has to be connected to the cpu in orderto receive or send information. Computer input and output devices research article from world of invention. On the other hand, the inputoutput table provides an important database to the construction of inputoutput models which may be used, for example, to evaluate the economic impact caused by exogenous changes in final demand miller, 1998. It is also an input device that is used by bank account holders. Now a day computer is one of the most important field for every examinations. Input devices only allow for input of data to a computer and output devices only receive the output of data from another device. Joysticks are often used to control video games, and usually have one or more pushbuttons whose state can also be read by the computer. As the name suggests, inputoutput devices are capable of sending data to a computer and receiving data from a computer. Mcq input and output device of computer with answers pdf. Input devices a keyboard it is a text base input device that allows the user to input alphabets, numbers and other. The user sees the result after processing of data by the computer through output devices. Mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs. These devices convert data and instructions into the form.
The original applications of the inputoutput model were made at a nationwide level. Input and output devices introduction the unit 4 presents the information of input and output devices. Input to the computer is usually given by clicking the mouse or typing on the keyboard. In this blog we will discuss about the other inputoutput devices which we attach to. It forms images from tiny dots, called pixels that are arranged in a rectangular form. Input devices let you to transfer data and user command into the computer system. A joystick is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. Input devices input is any data or instructions entered into the memory of a computer. Input and output devices bangladesh open university. An output device is used to send data out of the system. The microphone is used for various applications like adding sound to a multimedia presentation or for mixing music.
Input and output devices are computer hardware components. Difference between input and output device wikieducator. Dear aspirant, as you know computer is very important section to get a good score for bank exam. Input and output devices can also be written as io 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. Nov, 2018 an input device sends information to a computer system for processing, and an output device reproduces or displays the results of that processing. Input devices bring information into the computer and output device send information to out. Projectors are often used in meetings and presentations so that everyone in the room can view the presentation. Dec 29, 2016 an input devices converts the data and instructions into binary form that computer can understand. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer. Monitors, commonly called as visual display unit vdu, are the main output device of a computer. Without any input devices, a computer would only be a. What is the difference between an input and output device. Output device can produce the final product of machine processing into a form usable by humans.
Research computer input and output devices world of. Virtually all external devices have buffers, control signals, status signals, and data bits. Microphone is an input device to input sound that is then stored in digital form. Difference between input devices and output devices. Some of the output devices are visual display units vdu i. The distinction between output devices and input devices becomes even more blurred in the real world.
Inputoutput devices are required for users to communicate with the computer. 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. The following is a list of the most common input devices which are nowadays found in a computer system. Input output devices dont only produce output, but can also be used as storage and input devices. 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. Monitor is a computer display and related parts packaged in a physical unit that is separate from other parts of the computer. These devices convert data and instructions into the form that can be easily recognized by the computer.
A track ball comes in various shapes like a ball, a button and a square. Usage of atm card is increasing rapidly day by day in all over the world. An output device is any piece of computer hardware equipment which converts information into humanreadable form. And of course, the display itself is the output device. Without any input devices, a computer would only be a display device and not allow users to interact with it. The central processing unit controls the whole system by coordinating and organizing all the operations of the computer. A sheet of paper can be used to both record ideas input and display them output. Our televisions used to be oneway output devices, but now they provide both output and input through the use of apps that are running on these smart tvs.
Peripheral devices are external devices that connect to the computer through ports, such as usb, ethernet, and parallel ports. Input and output devices allow the computer system to interact with the outside world by moving data into and out of the computer system. Input and output devices are required for users to communicate with the computer. There are two kinds of viewing screen used for monitors.
Inputoutput devices and interaction department of computer. An input device is a component used to feed information to a computer, whereas an output device gives processed information back to the user. 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 and output computer devices the ins and outs of the computer chad hutchinson kaplan university abstract the computer that we use in our homes and places of business usually consists of a box containing the computer, a mouse, a couple of disks with drivers, a monitor for output and a keyboard for input. This is a ball which is half inserted and by moving fingers on ball, pointer can be moved. Aug 27, 2018 as you know computer is very important section to get a good score for bank exam. Io devices are used to interact with the computer system. Now weve really got to figure out whats important for your output. Output devices are used to display the result or information on the computer. When we work with a computer, we enter data and give instructions to the computer by using these devices. The sharpness of the image depends upon the number of pixels. We need to head to the computer store one more time. Computer input and output devices questions computer. Monitor and the printer are the commonly used output devices.
A computer has two types of devices which help the user to enter data into the. Pdf computer input and output devices ingamule siraji. It also can acquire respective media data as input sent to a computer or send computer data to storage media as storage output. Computer cannot understand our language because it understands only machine language and it can be possible using some devices called input devices. Input is usually given by clicking the mouse or typing on the keyboard. Computer input and output devices questions computer knowledge. Input devices are hardware that is used to put information into the computer. After processing, the input data are converted into meaningful information and this output is presented to the user with the help of output devices. Devices input and output unit 4 input output devices. The devices which are used to input the data and the programs in the computer are known as input devices. Pdf input output storages devices in computers researchgate. It can be text, graphics, tactile, audio, and video.
When the computer gives the printout, it is the output. Hmds also put a strain on the types of input devices that can be used since the user cannot physically see the device in order to use it. An inputoutput io device is a hardware device that has the ability to accept inputted, outputted or other processed data. Input and output devices allow the computer system to interact with the outside world by moving data into and out of the system. For example, to select the 3800 printing subsystem, enter 3800,ccuu. As we saw in the previous blog about the display output devices and their ports. Output devices projector an output device that can take the display of a computer screen and project a large version of it onto a flat surface. Output devices can adopt different shapes and styles, which are used to give the output of the processing of data.
Most modern monitors can display 1024 by 768 pixels, the svga standard. We are seeing more and more variety of specialised input and output devices that can connect with other devices to help the user perform a particular task. Track ball is an input device that is mostly used in notebook or laptop computer, instead of a mouse. This detailed study guide includes chapter summaries and analysis, important themes, significant quotes, and more everything you need to ace your essay or test on computer input and output devices. Following are few of the important output devices which are used in 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. Output devices can adopt different shapes and styles, which.
Input and output devices of a computer system are the devices that connect you to computer. Cpu controls all the connected input and output devices. Many of these are less complex versions of io devices that have been available for. We would get information into the television with our remote control, maybe an external keyboard, or even with voice communication. A number of inputoutput devices are used with many types of microcomputers. It can be text, graphics, tactile, audio, and video some of the output devices are visual display units vdu i. Input and output devices concepts input devices allow us to send information to the computer.
It only takes the information given by the input devices and sends the result to the output devices. When i draw using a mouse, the drawing actions are the input. Jan 05, 2017 input devices are used to give data and instructions to the computer. Outputdisplay helps you see what you are doing on laptops and computers 4. These input output devices are also known as peripherals since they surround the cpu and memory of a computer system. Fax machine know more about all in detail, click here input output devices. Input devices are used to give data and instructions to the computer. Input devices input devices any peripheral piece of computer hardware equipment used to provide data and control signals to a computer. When hardware is installed inside or outside a computer, the operating system needs a special piece of software called a driver to help it understand how to communicate with that device. To specify a different device type as the output device, enter dddd,ccuu, where dddd is one of the device types listed below, cc is the channel address, and uu is the unit address. Peripheral device, also known as peripheral, computer peripheral,inputoutput device, or inputoutput device, any of various devices including sensors used to enter information and instructions into a computer for storage or processing and to deliver the processed data to a human operator or, in some cases, a machine controlled by the computer. The distinction between output devices and input devices becomes even.
Input and output devices io devices are hardware elements. Weve picked out your system unit and input devices. An input device is any hardware component that allows a user to enter data and instructions into a computer. Input and output devices input devices allow us to send information to the computer.
Input devices as well as output devices are a neccessity in order to. It obeys the instructions issued to it by various input devices such. In general, the more pixels often expressed in dots per inch, the sharper the image. 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. We are seeing more and more variety of specialised input and output devices that can connect with other devices to help the user perform a particular task in a more optimal or other beneficial way. In this lecture we will discuss the various input and output devices that are used in 3d user interfaces and virtual environment applications.
The input devices are used to provide data to the central processing unit cpu for processing. Output devices allow us to receive information from the computer. Keyboard and mouse are the most commonly used input devices. Introduction an output devices is a piece of hardware that is used to display objects or output data which has been processed or has been stored in the computer. Some commonly used input output devices are listed in table below.
Since the whole device is not moved, a track ball requires less space than a mouse. A touch screen is a best example of an input and output system. An input devices converts the data and instructions into binary form that computer can understand. The input devices translate the information into the form. This encyclopedia article consists of approximately 4 pages of information about computer input and output devices. When i draw using a mouse, it is an input to the computer. Input and output devices computer fully solved questions and answers useful for competitive exams like ibps, sbi, ssc, rrb, gate etc. Microphone gives sound or voice input to the computer. Computer inputoutput devices by lisacowart infogram. Provide practical introduction to the input devices used in ves examine common and state of the art input devices look for general trends. Many of these are less complex versions of io devices that have been available for larger computer systems. Output device is a computer hardware device for communication with any part of the results of data processing information processing system such as a computer to the outside world. This transformation is performed by input interface. These devices are in the stage of experimenting and development, where various problems like speech should be independent of persons.
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