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