Jan 05, 2017 the devices which are used to give data and instructions to the computer are called input devices. Following are some of the important output devices used in a computer. 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. For example, a higherquality graphics card can be plugged in, and the built. 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. At its most basic level, an information system is, such as a software application, is installed on a computer and its users in the outside world operate the computer to get solutions to problems. The devices that are used to display the information of the results are known as output devices. Based on the instructions given, the computer will start processing it. Definition of output devices, classification and types of output. 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. Desktop screen data on the computer is shown back to us on the screen. The bus is usually incorporated into the main circuit board, called the motherboard, which is plugged into all the other.
A digital computer s hardware is a complex system of four functionally different elementsa central processing unit, input devices, memorystorage devices, and output devices linked by a communication network, or bus. It can be text, graphics, tactile, audio, and video some of the output devices are visual display units vdu i. Stands for inputoutput and is pronounced simply eyeoh. Input devices are usually categoried as either manual or automatic. Ther are various types of input and output devices. Touchpad allows to use all the features as you do with a computer mouse trackpoint. Examples of io devices are cd drives, dvd drives, usb drives.
A computer program processes and digitises the input information. An output device is any piece of computer hardware equipment which converts information into humanreadable form. 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 manages data flow between the computer s operating system and attached devices such as the hard disk, video adapter, keyboard, mouse and printer. Most devices are only input devices or output devices, as they can. For example, if you are running a word processor program and type a sentence on your keyboard, the text will appear on the screen. And finally, there are output devices that take information and convert it into physical output. Input devices keyboard one of the primary input devices used with a computer. The instructions are given to the computer via the input devices. The computer transmits data to the drive, where it is saved and can be later accessed. A computer is a device that can perform multiple tasks simultaneously. Input hardware synonyms, input hardware pronunciation, input hardware translation, english dictionary definition of input hardware. The computer sits between the input and output devices. Here youll find the complete examples of input and output devices.
Every computer performs the basic functions of input, processing, storage, output. An input device is a piece of technology which allows information to be sent to a computer system so that it can process it in some way whereas an output device is a piece of technology that. An input device is a piece of hardware that is used to enter data into a computer or a similar processing device such as a smart phone. Devices for communication between computers, such as modems and network cards, typically perform both input and output operations. The designation of a device as either input or output depends on perspective. Any information or data sent to a computer for processing is considered input. Most computer data output that is meant for humans is in the form of audio or video. Learn vocabulary, terms, and more with flashcards, games, and other study tools. These examples of output devices also include input output devices. Computers can take many different types of input, like the keyboard of a computer, the touch pad of a phone, a camera, a microphone, or a gps, but even the sensors on a car, a thermostat, or a drone are. Topic definition of computer computer basic operations. An output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system such as a computer which converts the electronically generated information into humanreadable form.
Input devices accept data and instructions from the user. Jul 29, 2018 in this video we have given you knowledge of output devices and try to cover all things related to output devices of computer. A mouse is a type of input hardware device that is commonly used in desktop computers. Examples of input and output devices computersciencementor. Inputoutput and interfacing electrical and computer. Explain the difference between input device and output. Below we discuss the variety of peripheral devices used for computer input and output. Input output devices dont only produce output, but can also be used as storage and input devices. While the devices whose main function is to give instructions and data to the computer are called input devices. A bar code reader, also called a price scanner, is a simple handheld input device used to capture and read information contained in a bar code. Peripheral device, also known as peripheral, computer peripheral, input output device, or input output 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 only allow for input of data to a computer and output devices only receive the output of data from another device most devices are only input devices or output devices, as they can only accept data input from a user or output data. Bios basic input output system is the program a personal computer s microprocessor uses to get the computer system started after you turn it on. The devices which are used to input the data and the programs in the computer are known as input devices. The objective of output devices is to turn computer information into a human friendlyreadable form. The picture is an illustration of the difference between input and output. The devices which are used to give data and instructions to the computer are called input devices. Input devices or input units help feeding the data into a computer. The keyboard is an input device and the screen is an output. Inputoutput devices dont only produce output, but can also be used as storage and input devices. Whenever you enter data into your computer, it is referred to as input.
Input devices represent one type of computer peripheral the other two types are output devices and storage devices. Output devices are pieces of computer hardware used to communicate the results of data processing performed by a computer. Software refers to a set of instructions to perform a specific task written using a. For example, a printer is an external device that you connect using a cable, while an optical disc drive is typically located inside the computer. A peripheral device connects to a computer system to add functionality. Start studying unit 1basic terms, operating system and application software. Input hardware definition of input hardware by the free. A touchpad most commonly found on computer laptops computer brand doesnt matter. The input example top shows data being sent from a keyboard to a computer. Inputs are the signals or data received by the system, and outputs are the signals or data sent from it.
This is to help you have a basic idea about input and output devices. Input devices allow your computer to receive instructions and create something, output devices confirm those actions and enjoyuse your creations. An input devices converts the data and instructions into binary form that computer can understand. Few examples of output devices are printers, projector, plotters, monitor, speakers, head phone, etc. Data can be in the form of numbers, words, actions, commands, etc. The terms input and output are used both as verbs to describe the process of entering or displaying the data, and as nouns referring to the data itself entered into or displayed by the computer. Output devices of computer learners region youtube. This can be text typed in a word processing document, keywords entered in a search engines search box, or data entered into a spreadsheet. What is the difference between an input and output device.
Input and output devices are the basic components of a computer system. Rating is available when the video has been rented. Inputoutput definition and meaning collins english dictionary. Input output refers to the information that is passed into or out of a computer. Input or user input is sent to a computer using an input device. In computing, an input device is a piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance. In computing, input output refers to the communication between aninformation processing system such as a computer, and the outside world. A computer or laptop keyboard is kind of hardware device that you can use to type data in a computer system.
These components help users enter data and commands into a computer system. Heres a list of some input devices used in computers and other computing devices. Information that comes from an external source and is. The keyboard looks very similar to the keyboards of electric typewriters, with some additional keys. In fact, some devices are basically input only devices keyboards and mouses. It allows input of raw data to the computer for processing. Computer input and output devices questions computer. The main function of input devices is to direct commands and data into computers. A touchpad or trackpad is a kind of input device that has a limited area wherein you can point, scroll, click and swipe. An inputoutput io device is a hardware device that has the ability to accept inputted, outputted or other processed data.
Unit 1basic terms, operating system and application software. Inputoutput devices are required for users to communicate with the computer. Stands for input output and is pronounced simply eyeoh. Keyboard one of the primary input devices used to input data and commands. A device, such as a printer, video display, or speaker, that presents data from a computer to a user. Output device can produce the final product of machine processing into a form usable by humans. For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices.
An input device is a piece of hardware used to provide data to a computer used for interaction and control. Examples are a mouse, keyboard, monitor, printer and scanner. Microphone is also used to enter text with voice recognition software. Computers are based on the fundamental idea that every input results in an output. Without them, a computer would either has to be imbedded in your body or serve as a door stop. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system.
What is the term used to define all input and output devices. Sep 09, 2018 the main difference between input and output devices is that the input devices are used to send data into the computer while the output devices are used to take data out of the computer. The sharpness of the image depends upon the number of pixels. An output device is any device used to send data from a computer to another device or user. Computer is a machine that manipulates data according to a set of instructions.
Generally input devices are manual or direct data entry devices. Input can be something as simple as moving the mouse or clicking the mouse button or it can be as complex as scanning a. Output hardware synonyms, output hardware pronunciation, output hardware translation, english dictionary definition of output hardware. Examples of io devices are cd drives, dvd drives, usb drives, hard disk drives hdds, and floppy disk drives. It gives input to the computer through clicks, dragging and. Thus, most output devices used by humans are in these categories. Input hardware is that which you use to input data into a computer primarily a keyboard and mouse, but may also be a microphone, webcam, touchpad, etc. It also can acquire respective media data as input sent to a computer or send computer data to storage media as storage output. Difference between input and output devices pediaa. Additional input output can be added by plugging in controller cards into the motherboards pci or pci express slots. Examples of input devices a keyboard is the most fundamental input device for.
It forms images from tiny dots, called pixels that are arranged in a rectangular form. Computers then use their cpu to process this data and produce output. Printer printers have information sent to them which they then print out to us. Keyboards allow a computer user to input letters, numbers, and other symbols into a computer. Difference between input devices and output devices. These inputoutput devices are also known as peripherals since they surround the cpu and memory of a computer system.
Input output devices questions and answers computer. In computing, input output or io or, informally, io or io is the communication between an information processing system, such as a computer, and the outside world, possibly a human or another information processing system. 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 touch screen is a best example of an input and output system. Input devices only allow for input of data to a computer and output devices only receive the output of data from another device. Fax machine know more about all in detail, click here input output devices. The definition of a computer is a person or electronic device that makes and stores quick calculations or processes information. Jun 30, 2019 input devices a hardware component used to enter data and instruction into computer is called input device. Using a computer may seem an easy task because of the.
Below are some of the previous important questions asked in the public examinations. Input device teachict computer science learning for. Io input output, pronounced eyeoh, describes any operation, program, or device that transfers data to or from a computer. Output devices are pieces of hardware that process data sent from a computer and translate it into a form readable by humans. Output hardware definition of output hardware by the free. Typical io devices are printers, hard disks, keyboards, and mouses. Monitors, commonly called as visual display unit vdu, are the main output device of a computer. A device, such as a keyboard, used to enter information into a computer. Touch screen these are both input and output devices as information is entered in the screen aswell as given out in the same screen. The result is then sent to an output device such as a screen. Computer output microfilm definition of computer output. Input definition the tech terms computer dictionary. Input output devices list with their functions pcguide4u.
This transformation is performed by input interface. There are many examples of output devices, each with their own benefits and drawbacks. It is usually called as mic and in most of the laptops, mic comes inbuilt. Dec 29, 2016 an input devices converts the data and instructions into binary form that computer can understand. What is the role of input and output devices in computer. Examples include monitors, projectors, speakers, headphones and printers. Learn about the different types of peripheral devices and how. Examples of input devices include keyboards, mouse, scanners, digital cameras and joysticks input devices can be categorized based on. Inputs are the signals or data received by the system and outputs are the signals or data sent from it. Apr 24, 2020 inputoutput io, in computing, is a communication process between a computer and the outside world. Today we are going to discuss these devices in detail. The main difference between input and output devices is that the input devices are used to send data into the computer while the output devices are used to take data out of the computer a computer is a device that can perform multiple tasks simultaneously.
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