There are two kinds of viewing screen used for monitors. And of course, the display itself is the output device. When i draw using a mouse, it is an input to the computer. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter ii. 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. An input device is any hardware component that allows a user to enter data and instructions into a computer. The devices which are used to input the data and the programs in the computer are known as input devices. Outputdisplay helps you see what you are doing on laptops and computers 4. 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. Computer input and output devices questions computer. Now a day computer is one of the most important field for every examinations. It can be text, graphics, tactile, audio, and video.
Weve picked out your system unit and input devices. The input devices are used to provide data to the central processing unit cpu for processing. Input and output devices concepts input devices allow us to send information to the computer. Input and output devices are computer hardware components. What is a printer and what are the different types of printers. Computer inputoutput ports and interfaces 1 terms and abbreviations. Input devices are used to give data and instructions to the computer. The distinction between output devices and input devices becomes even. We would get information into the television with our remote control, maybe an external keyboard, or even with voice communication. Input devices a keyboard it is a text base input device that allows the user to input alphabets, numbers and other. Monitor and the printer are the commonly used output 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. Input output devices dont only produce output, but can also be used as storage and input devices. This transformation is performed by input interface. But when it comes to know about them and how they work, such devices are categorized as input and output devices. 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. This encyclopedia article consists of approximately 4 pages of information about computer input and output devices. 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. Io devices are used to interact with the computer system. In this lecture we will discuss the various input and output devices that are used in 3d user interfaces and virtual environment applications. Most modern monitors can display 1024 by 768 pixels, the svga standard. We need to head to the computer store one more time.
Input and output devices io devices are hardware elements. These devices convert data and instructions into the form. Input and output devices computer fully solved questions and answers useful for competitive exams like ibps, sbi, ssc, rrb, gate etc. The original applications of the inputoutput model were made at a nationwide level. Output devices are used to display the result or information on the computer. Input is usually given by clicking the mouse or typing on the keyboard. Output device can produce the final product of machine processing into a form usable by humans. 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. 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. 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. Input and output devices allow the computer system to interact with the outside world by moving data into and out of the system. Peripheral devices are external devices that connect to the computer through ports, such as usb, ethernet, and parallel ports.
Some of the output devices are visual display units vdu i. It obeys the instructions issued to it by various input devices such. Provide practical introduction to the input devices used in ves examine common and state of the art input devices look for general trends. Any device has to be connected to the cpu in orderto receive or send information. An input devices converts the data and instructions into binary form that computer can understand. For example, to select the 3800 printing subsystem, enter 3800,ccuu.
It only takes the information given by the input devices and sends the result to the output devices. It forms images from tiny dots, called pixels that are arranged in a rectangular form. 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. Research computer input and output devices world of. Difference between input and output device wikieducator. Dec 29, 2016 an input devices converts the data and instructions into binary form that computer can understand. Input and output devices allow the computer system to interact with the outside world by moving data into and out of the computer system. Computer cannot understand our language because it understands only machine language and it can be possible using some devices called input devices. 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. Input and output devices of a computer system are the devices that connect you to computer.
When i draw using a mouse, the drawing actions are the input. Since the whole device is not moved, a track ball requires less space than a mouse. Usage of atm card is increasing rapidly day by day in all over the world. An input device is used to bring data into the system. Devices input and output unit 4 input output devices.
Cpu controls all the connected input and output devices. 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. Output devices can adopt different shapes and styles, which. It reads all information when someone swaps atm or visa card on it. Input and output devices introduction the unit 4 presents the information of input and output devices. This is a ball which is half inserted and by moving fingers on ball, pointer can be moved. Computer inputoutput devices by lisacowart infogram. Magnetic ink card readermicr micr input device is generally used in banks because of a large number of cheques to be processed every day. Computer input and output devices questions computer knowledge. A computer has two types of devices which help the user to enter data into the. As we saw in the previous blog about the display output devices and their ports. Difference between input devices and output devices. It can be text, graphics, tactile, audio, and video some of the output devices are visual display units vdu i.
Without any input devices, a computer would only be a display device and not allow users to interact with it. Projectors are often used in meetings and presentations so that everyone in the room can view the presentation. Microphone gives sound or voice input to the computer. Alternatively referred to as an io device, an inputoutput device is any hardware used by a human operator or other systems to communicate with a computer. Computer input and output devices research article from world of invention. A number of inputoutput devices are used with many types of microcomputers. Now weve really got to figure out whats important for your output. Aug 27, 2018 as you know computer is very important section to get a good score for bank exam. Input devices are hardware that is used to put information into the 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. Fax machine know more about all in detail, click here input output devices. A track ball comes in various shapes like a ball, a button and a square. 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. What is the difference between an input and output device.
When the computer gives the printout, it is the output. Input devices input is any data or instructions entered into the memory of a 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. The need for input and output devices teachers notes time min activity further notes 5 introduce the topic. Mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs. Following are few of the important output devices which are used in a computer. Input devices input devices any peripheral piece of computer hardware equipment used to provide data and control signals to a computer. 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.
Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a 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. Without any input devices, a computer would only be a. Monitor is a computer display and related parts packaged in a physical unit that is separate from other parts of the computer. Outputspeakers attached to computer sound cards are needed 2 speaker output for multi channel units 5. These input output devices are also known as peripherals since they surround the cpu and memory of a computer system. The computer transmits data to the drive, where it is saved and can be later accessed. An output device is any piece of computer hardware equipment which converts information into humanreadable form. Input and output devices are required for users to communicate with the computer. Output devices allow us to receive information from the computer.
Pdf computer input and output devices ingamule siraji. Input and output devices can also be written as io devices. Output devices can adopt different shapes and styles, which are used to give the output of the processing of data. The distinction between output devices and input devices becomes even more blurred in the real world. 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. Mcq input and output device of computer with answers pdf.
Inputoutput devices and interaction department of computer. An output device is used to send data out of the system. Virtually all external devices have buffers, control signals, status signals, and data bits. It is also an input device that is used by bank account holders.
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. Input devices as well as output devices are a neccessity in order to. When we work with a computer, we enter data and give instructions to the computer by using these devices. 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. These devices convert data and instructions into the form that can be easily recognized by the computer. Joysticks are often used to control video games, and usually have one or more pushbuttons whose state can also be read by the computer.
Many of these are less complex versions of io devices that have been available for larger computer systems. A touch screen is a best example of an input and output system. Microphone is an input device to input sound that is then stored in digital form. 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. In general, the more pixels often expressed in dots per inch, the sharper the image. Dear aspirant, as you know computer is very important section to get a good score for bank exam. Examples of io devices are cd drives, dvd drives, usb drives, hard disk drives hdds, and floppy disk drives.
Input and output devices of computer computer notes. The simplest touch screen is made up of a grid of sensing lines. 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. Input devices let you to transfer data and user command into the computer system. Jan 05, 2017 input devices are used to give data and instructions to the computer. Input and output devices bangladesh open university. 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. Input to the computer is usually given by clicking the mouse or typing on the keyboard. The following is a list of the most common input devices which are nowadays found in a computer system. The microphone is used for various applications like adding sound to a multimedia presentation or for mixing music.
The user sees the result after processing of data by the computer through output devices. As the name suggests, inputoutput devices are capable of sending data to a computer and receiving data from a computer. Input devices bring information into the computer and output device send information to out. Input devices only allow for input of data to a computer and output devices only receive the output of data from another device. It also can acquire respective media data as input sent to a computer or send computer data to storage media as storage output. 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. Keyboard and mouse are the most commonly used input devices. The input devices translate the information into the form. An inputoutput io device is a hardware device that has the ability to accept inputted, outputted or other processed data. Output devices monitor features display resolution the resolution of a monitor indicates how densely packed the pixels are. These devices are in the stage of experimenting and development, where various problems like speech should be independent of persons.
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