This data is given to the computer by using particular devices named computer input devices. A touch screen is an input output touchsensitive display. 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. 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. Output devices allow us to receive information from the computer. Input devices a keyboard it is a text base input device that allows the user to input alphabets, numbers and other characters. Input and output devices of computer computer notes. Speakers can be used for various sounds meant to alert the user, as well as music and spoken text.
Various other characteristics can distinguish input devices, but are perhaps. Inputoutput devices an important part of the data processing operation is entering data into the central processing unit. List of input devices, output devices and both input. Explain different types of output devices perfect computer. Input output devices dont only produce output, but can also be used as storage and input devices. The cpu is interfaced using special communication links by the peripherals connected to any computer system. Monitors and printers are two of the most commonly used output devices used with a computer. It forms images from tiny dots, called pixels that are arranged in a rectangular form. Input means to provide the program with some data to be used in the program and output means to display data on screen or write the data to a printer or a file c programming language provides many builtin functions to read any given input and to display data on screen when there is a need to output the result. Microphone is an input device to input sound that is then stored in digital form. 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.
Computer devices computer input and output devices 992019 designed. A plotter is an output device used to produce imagequality graphics in a variety of colors. There are many different types of input device and each one is suitable for a specific task. They can be used by the computer to create a picture of whatever the camera had been pointed at.
An output device is any piece of computer hardware equipment which converts information into humanreadable form. This section explains how to interface many different input and output devices to the. Following are few of the important output devices which are used in a computer. Discuss how different io devices affect interface design. The different character sets available in the market are 48 character set, 64 and 96 characters set. All io devices, however, do not send and receive the same. Inputoutput devices and interaction department of computer. These devices convert data and instructions into the form that can be easily recognized by the computer.
Pdf input output storages devices in computers researchgate. Input devices various hardware devices have been developed to enable the user to interact in the more natural manner. These examples of output devices also include input output devices. Magnetic ink card readermicr micr input device is generally used in banks because of a large number of cheques to be processed every day. It can be text, graphics, tactile, audio, and video.
Computer usually uses its input output channels to access secondary storage and transfers the desired data using intermediate area in primary storage. Data that has been processed into a useful form, called information p. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer. For example, the image shows an inkjet printer, an output device that can make a hard copy of anything shown on the monitor. Input and output devices input devices allow us to send information to the computer.
A track ball comes in various shapes like a ball, a button and a square. A number of inputoutput devices are used with many types of microcomputers. Input and output devices bangladesh open university. Dec 14, 2010 list of input devices, output devices and both input output devices related to computer. The joystick can be moved in all four directions 992019 designed. Input devices as well as output devices are a neccessity in order to. Joysticks are often used to control video games, and usually have one or more pushbuttons whose state can also be read by the computer. Track ball is an input device that is mostly used in notebook or laptop computer, instead of a mouse. An output device is any peripheral that receives data from a computer, usually for display, projection, or physical reproduction. Inputoutput organisation computer architecture tutorial. Many of these are less complex versions of io devices that have been available for larger computer systems. Various types of input devices can be used with the computer depending upon the type of data you want to enter in the computer, e. A good input device should provide timely, accurate and useful data to the main memory of the computer for processing followings are the most useful input devices.
Sound card plays contents of digitized recordings, speakers attached to sound card. Csca0101 computing basics 38 output devices headphones. A computer can still work without an output device. An input device is any tool device for entering information into a computer. The audio output is the ability of the computer to output sound. Abraham silberschatz, greg gagne, and peter baer galvin, operating system concepts, eighth edition, chapter. People have a variety of options for entering data and instructions into a computer.
Scribd is the worlds largest social reading and publishing site. This is to help you have a basic idea about input and output devices. Input devices the devices which are used to give data and instructions to the computer are called input devices. List of input devices, output devices and both input output. Difference between input and output is that input is any data and instructions entered into the memory of a computer. Given that different devices are likely to require different. Output devices are those peripheral devices that allow a user to retrieve information from a computer. Computer cannot understand our language because it understands only machine language and it can be possible using some devices called input devices. Output devices examples of output device printer monitor.
When i draw using a mouse, it is an input to the computer. How do you ever wonder how information gets in your computer and how comes out in a form you can use. Today we are going to discuss these devices in detail. In computing, input output refers to the communication between aninformation processing system such as a computer, and the outside world. Pdf computer input and output devices ingamule siraji. However, youd have no way of determining what the computer is doing. Some types of output devices include crt monitors, lcd monitors and displays, gas plasma monitors and televisions.
Output device can produce the final product of machine processing into a form usable by humans. Here is the basic idea of input and output devices and how they are different from one another. By using an output device, you can view and get the results of input from a. An input device is used to bring data into the system. This function is handled by one of the various input devices used in conjunction with the computer.
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. Since the original data is usually not written in a form useful to the computer. Nov 16, 2019 the best method of determining all of the output devices your computer has is to go through the list above. In this way we get results by the pc output devices. Plotters are used to draw different designs of buildings or internal structure of machines. Management of io devices is a very important part of the operating system so important and so varied that. The chapter has given an introduction to the inputoutput devices. A number of input output devices are used with many types of microcomputers. While the devices whose main function is to give instructions and data to the computer are called input devices. Input is usually given by clicking the mouse or typing on the keyboard.
But before discussing the various components of a computer system, ie the input output devices and storage devices,in this article, we are going to discuss the input output devices of a computer system. These devices are in the stage of experimenting and development, where various problems like speech should be independent of persons. Inputoutput devices dont only produce output, but can also be used as storage and input devices. Examples of io devices are cd drives, dvd drives, usb drives, hard disk drives. Analog signals are continuous and can have any number of statesnot just two, as with discrete digital signals. Inputoutput devices are required for users to communicate with the computer. What are different types of input devices with examples. Io devices are used to interact with the computer system. An input device is any peripheral used to provide data and control signals to a computer.
Output devices can adopt different shapes and styles, which are used to give the output of the processing of data. The microphone is used for various applications like adding sound to a multimedia presentation or for mixing music. Computer inputoutput ports and interfaces 1 terms and abbreviations. Output device interfacing input device interfacing advanced component interfacing. Input devices represent one type of computer peripheral the other two types are output devices and storage devices. This is the standard input device attached to all computers. In general, the more pixels often expressed in dots per inch, the sharper the image. When we work with a computer, we enter data and give instructions to the computer by using these devices. The data can be in the form of text, graphics, sound, and text. It obeys the instructions issued to it by various input devices such as the keyboard and organizes the output to the various peripheral units such as the printer.
Difference between input devices and output devices. But when it comes to know about them and how they work, such devices are categorized as input and output devices. Dec 29, 2016 an input devices converts the data and instructions into binary form that computer can understand. What is the difference between an input and output device. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter. 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.
It is responsible for fetching instructions that are stored in the primary storage, interpreting them and then issuing commands to all the hardware units that are necessary to. 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. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system. An input device can be defined as an electromechanical devices that allows the user to feed information or data into the computer for analysis, storage and give command to the computer. Since the whole device is not moved, a track ball requires less space than a mouse. Input and output devices allow the computer system to interact with the outside world by moving data into and out of the system. A temperature transducer is an example of an analog input device. A keyboard is the most fundamental input device for. But before discussing the various components of a computer system, ie the input output devices and storage devices,in this article, we are going to discuss the input output devices of a. This transformation is performed by input interface. Digitizer is an input device which converts analog information into digital form. The input devices are the hardware that is used to transfer transfers input to the computer.
Input devices let you to transfer data and user command into the computer system. Without these input output devices, a computer is just a dumb machine that cant operate effectively and efficiently to perform a specific task. The devices that are used to display the information of the results are known as output devices. In this lecture we will discuss the various input and output. Any hardware component used to enter data, programs, commands, and user responses into a computer scanners and reading devices voice input keyboard pointing device video input digital p. Microcontroller interfacing circuits revolution revolution education ltd. They are locators and selectors a joystick has two potentiometers, they have been attached to a single lever.
Ink jet printers, laser printers and sound cards are also types of output devices. Output devices monitor features display resolution the resolution of a monitor indicates how densely packed the pixels are. The output signals from the system are sent to outputdisplay devices through interfacing devices. 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. Some of the output devices are visual display units vdu i. Input and output devices of a computer system are the devices that connect you to computer. Color monitors can display anywhere from 16 to over 1 million different colors. The system has a capacity of up to ten laram devices. Various refresh interval periods and two operating frequencies, 5.
The most common of all input devices is the keyboard. Input devices only allow for input of data to a computer and output devices only receive the output of data from another device. 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. It gives a detailed listing of the various types of input devices and the output devise. Input and output devices introduction the unit 4 presents the information of input and output devices.
Io interface interrupt and dma mode the method that is used to transfer information between internal storage and external io devices is known as io interface. List of input devices, output devices and both input output devices related to computer. The various input signal conditioning devices used in mechatronic system are discrete circuits, amplifiers, analogtodigital ad convertors, digitaltodigital dzd convertors. So that we can say in simple term, a computer input device is a hardware component that is used to enter data and instruction into the computer to perform specific task. Plotters are used to print large maps, architectural drawings, graphs and charts. 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.
December 14, 2010 february 15, 2018 allaboutbasic in my last post i have shared about the following job recruitment questions on basic computer technology and internet. Input devices input is any data or instructions entered into the memory of a computer. Available in various voltage ranges and current capabilities. Drum printers are fast in speed and can print 300 to 2000 lines per minute. Jan 05, 2017 input devices the devices which are used to give data and instructions to the computer are called input devices. C inputoutput functions printf, scanf, putchar, getchar. Most modern monitors can display 1024 by 768 pixels, the svga standard. Examples of io devices are cd drives, dvd drives, usb drives, hard disk drives hdds, and floppy disk drives. Input devices are necessary to convert our information or data into a form which can be understood by the computer. Apart from alphabet and numeral keys, it has other function keys for performing different functions. Devices input and output unit 4 input output devices. Input devices input devices any peripheral piece of computer hardware equipment used to provide data and control signals to a computer. The following is a list of the most common input devices which are nowadays found in a computer system.
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. Input is any data or instructions entered into the memory of a computer. Input and output devices can also be written as io 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 used for computer graphics. Input or output devices that are connected to computer are called peripheral devices. It can be text, graphics, tactile, audio, and video some of the output devices are visual display units vdu i. These inputoutput devices are also known as peripherals since they surround the cpu and memory of a computer system. An input device is any hardware component that allows a user to enter data and instructions into a computer. The computer transmits data to the drive, where it is saved and can be later accessed. Without any input devices, a computer would only be a display device and not allow users to interact with it. Inputs are the signals or data received by the system, and outputs are the signals or data sent from it. Understand the importance of design controls in device. Digitizer can convert a signal from the television or camera into a series of numbers that could be stored in a computer.
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