A list of the steps in the information processing cycle. Output devices allow us to receive information from the computer. Input devices accept data and instructions from the user. The devices are usually used for display, projection, or for physical reproduction. An input device is any peripheral used to provide data and control signals to a computer. Output, which provides output to the user from the computer. In computing, an input device is any peripheral piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or other information appliance. When i draw using a mouse, it is an input to the computer. Digitizer can convert a signal from the television or camera into a series of numbers that could be stored in a computer. The input and output sections are where the processor receives information from external devices and communicates information to external devices. Facsimile fax it has scanner to scan the document and also. Fundamental of computer fun and educational video for children easy and simple preschool learning for kids input output devices io devices input devices.
Scanner captures images from the source which are then converted into the digital form that can be stored on the disc. An input device is any hardware component that allows a user to enter data and instructions into a computer. Monitors are very similar to televisions but usually display information at a much higher resolution. Presentation on input and output devices slideshare. The computer sits between the input and output devices. Many of these are less complex versions of io devices that have been available for larger computer systems. Jul 22, 2018 computer processing is the means by which computer programs and instructions are being executed. Computer input, processing, output and storage devices. Input and output devices make up the hardware interface between a computer and a scanner or 6dof controller. Input devices input is any data or instructions entered into the memory of a computer. Devices such as a keyboard or mouse are examples of input devices. The computer will be of no use unless it is able to communicate with the outside world. Computer inputoutput ports and interfaces 1 terms and abbreviations.
Nov 16, 2019 an output device works by receiving a signal from the computer and using that signal to perform a task to display the output. Most devices are only input devices or output devices, as they can. Without any input devices, a computer would only be a display device and not allow users to interact with it. The following is a list of the most common input devices which are nowadays found in a computer system. It is actully the process of transforming input data into output information. The designation of a device as either input or output depends on perspective. How do you ever wonder how information gets in your computer and how comes out in a form you can use. Interaction styles and inputoutput devices article pdf available in behaviour and information technology 122. Output devices monitor the device which displays computer output. 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. The device you use will depend on what form this data takes be it text, sound, artwork, etc. For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices.
Speaker act output device and microphone act as input. The inputs might thus be from switches, as illustrated in figure 1. Video input devices are used to entering full motion video recording into a computer. They are divided into two categories 1 manual input devices devices that need human involvement to input data. Input and output devices input devices allow us to send information to the computer. On a computer keyboard input device, if you type h, it sends inputs a signal to the computer. Monitor and the printer are the commonly used output devices. However, at some levels within a computer, some processing devices actually only use three of these stages input, processing and output without the need to store data. The result is then sent to an output device such as a screen. A computer program processes and digitises the input information. You can view the output on the monitor or you can print it on a paper using a printer. Computer output devices receive information from the computer, and carry data that has been processed by the computer to the user. List of input devices, output devices and both input output. An input device are mechanical device which helps user to input the data in to your computer machine.
When sending a signal, the device converts modulates digital data to an analog audio signal, and transmits it over a telephone line. Inputoutput devices and interaction techniques 2004. Scanner is an input device which works more like a photocopy machine. The devices which are used to input the data and the programs in the computer are known as input devices. In computing, an hyg input device is a piece of faiza computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Here i am going to share you about list of basic input devices, output devices and both input output devices. Output devices monitor printer audio output projector 16. Every computer performs the basic functions of input, processing, storage, output. Input is usually given by clicking the mouse or typing on the keyboard. Input and output devices bangladesh open university. Input and output devices kanwal rekhi school of information.
An input device for a computer allows you to enter information. Short for modulatordemodulator, a modem is a hardware device that allows a computer to send and receive information over telephone lines. Input devices as well as output devices are a neccessity in order to ensure that data is entered into a computer to be processed and the results output. A touch screen is an input output touchsensitive display. Slide 3 topics information processing cycle what is input. Below we discuss the variety of peripheral devices used for computer input and output.
The cpu can also write to and store information in the memory. Devices input and output unit 4 input output devices. Inputs are the signals or data received by the system and outputs are the signals or data sent from it. There are various types of input device by which a user can ask computer to solve their query or processes. Headsets headset consists of speakers and microphone. Jan 05, 2017 the devices which are used to display the results or information are called output devices. 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. Getting the right input devices for your computer system can make a world of difference in your computers performance and can improve the quality of your time spent at the screen. Monitor led, lcd, crt etc printers all types lcd projection panels.
Input output interface an overview sciencedirect topics. Computer input and output devices fun learning computer. Computer basics for kids eastern local school district. Computer input and output devices research article from world of invention this encyclopedia article consists of approximately 4 pages of information about computer input and output devices. Research computer input and output devices world of invention. An input device is any tool device for entering information into a computer. An input device is used to bring data into the system. The most fundamental pieces of information are keystrokes on a keyboard and clicks with a mouse. Data that has been processed into a useful form, called information p. This is the most common output device connected with the computer to display the processed information. Today we are going to discuss these devices in detail.
This is to help you have a basic idea about input and output devices. Computer input and output devices fun learning computer for. When the computer gives the printout, it is the output. Input and output devices input and output devices input devices input devices are used to get data into a system. Input devices standard computer keyboard computer keyboard keys.
Computer processing devices are those devices directly responsible for the transformation of data into information. These inputoutput devices are also known as peripherals since they surround the cpu and memory of a computer system. It is used when some information is available on a paper and it is to be transferred to the hard disc of the computer for further manipulation. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system. A user presses a key which transfers information to a computer. Input and output devices allow the computer system to interact with the outside world by moving data into and out of the system.
6979 march 1993 with 4,317 reads how we measure reads. The input data form may be text, sound, video, artwork etc. Reading comprehension ensure that you draw the most important information from the related lesson on computer input devices information recall access the. Output devices are pieces of computer hardware used to communicate the results of data processing performed by a computer. Before a computer can process your data, you need some method to input the data into the machine. Input and output devices people at vt computer science. List of input devices, output devices and both input. Digitizer is an input device which converts analog information into digital form. Devices for communication between computers, such as modems and network cards, typically perform both input and output operations. There are many examples of output devices, each with their own benefits and drawbacks. Aug 29, 2018 fundamental of computer fun and educational video for children easy and simple preschool learning for kids input output devices io devices input devices. The above pdf is based on input and output devices and contains the following. The information processing cycle, in the context of computers and computer processing, has four stages. An electromechanical device that can be used to enter data and instructions into a computer.
Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer. While the devices whose main function is to give instructions and data to the computer are called input devices. The objective of output devices is to turn computer information into a human friendlyreadable form. 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. Similarly, when an analog signal is received, the modem converts it back demodulates it to a digital. Inputoutput devices are required for users to communicate with the computer. The computing literature often draws a sharp distinction between input and output. Input, used to interact with, or send data to the computer mouse, keyboards, etc. A computer is an electronic device that accepts u ser input data and processes it under the influence of a set of instructions referred to as programs to produce the desired output generally. However, nearly all examples of human computer interaction require both input and output to do anything useful.
It forms images from tiny dots, called pixels that are arranged in a rectangular form. Before an output can be produced by a computer it must have an output device connected to it. Output devices provide data in myriad different forms, some of which include audio, visual, and hard copy media. Fahad khan an input device is a piece of hardware that is used to enter data into a computer. 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. The devices which are used to display the results or information are called output devices. They are divided into two categories 1 manual input devices devices that need human involvement to input. For example, below is a basic list of steps of how an output device works. 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. Page 1 cover i spy game page 2 instructions i spy game page 34 clue sheet i spy game other activities page 5 unscramble page 6 word search page 7 page 8 cross word puzzle page 9 circle input or outp. In computing, inputoutput 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.
Most computers need some way to input information into them. Following are few of the important output devices which are used in a computer. Computer devices includes, input, output, processing and storage. All computers have memory that is used to hold the program instructions that the cpu executes. A peripheral is a device that is used to put information into or get information out of the computer. A number of input output devices are used with many types of microcomputers. Input devices only allow for input of data to a computer and output devices only receive the output of data from another device. Jan 27, 2014 presentation on input and output devices 1. Thus, a computer must have a system to receive information from the outside world and must be able to communicate results to the external world. Input output devices questions and answers computer. What is the difference between an input and output device. Input and output devices io devices are hardware elements. Input devices input devices any peripheral piece of computer hardware equipment used to provide data and control signals to a computer.
In my last post i have shared about the following job recruitment questions on basic computer technology and internetjob recruitment questions on basic computer technology and internet part1. 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. The monitor displays the video and graphics information generated by the computer through the video card. 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. A number of inputoutput devices are used with many types of microcomputers. Input and output devices introduction the unit 4 presents the information of input and output devices. Output devices output devices are used to receive information from the computer either in softcopy or hard copy. The devices that are used to display the information of the results are known as output devices. Apr 18, 2020 quality information about the all computers or laptops, mobiles,tablets, technology and latest electronic gadgets. They can be used by the computer to create a picture of whatever the camera had been pointed at. These devices are used for performing some specific functions. A visual display unit vdu or monitors are the most popular output devices used for producing softcopy output.
Revise computer science gcse by testing your knowledge of output devices using our quiz. Output device can produce the final product of machine processing into a form usable by humans. Input devices o level computer science 2210 prepared by. Job interview questions on basic computer technology and internet part2.
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