Input devices input is any data or instructions entered into the memory of a computer. Input devices a keyboard it is a text base input device that allows the user to input. Any hardware component used to enter data, programs, commands, and user responses into a computer. An input device can send data to another device, but it cannot receive data from another device. The size of a monitor is measured in inches diagonally across the screen. Output devices nonimpact printer multifunction printer tonerbased an mfp is an office machine which incorporates the functionality of multiple devices in one. Nov, 2018 as far as other input devices, it depends on what was included with your computer and whats connected to the computer. Light pen track ball graphic tablet magnetic ink card readermicr. A sheet of paper can be used to both record ideas input and display them output. Hardware components that readwrite to storage media are called storage devices. An input device is any hardware device that sends data to a computer, allowing you to interact with and control it. Computers and sensors operation,diagnosis, and service. Input or output devices that are connected to computer are called peripheral devices. Functions of some of the important keys are defined below.
Keyboard mouse joy stick light pen track ball scanner graphic tablet microphone magnetic ink card readermicr optical character readerocr bar code reader optical mark readeromr keyboard keyboard is the most common and very popular input device which helps in inputting. 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. However, there are dozens of other devices that can also be used to input data into the computer. Explain how keyboards, mice, audio and videos input data into a computer define ergonomics and discuss how some input devices can be ergonomic to unlock this lesson you must be a member.
They cannot accept or reproduce information output from the computer. Jan 20, 2015 i hope it clears the concept of input and output devices. Clay reacts to the sculptors fingers yet also provides feedback through the curvature and texture of its surface. Fundamental of computer fun and educational video for children easy and simple preschool learning for kids input output devices io devices input devices. The following is a list of the most common input devices which are nowadays found in a computer system. Digitizer can convert a signal from the television or camera into a series of numbers that could be stored in a computer.
Input devices represent one type of computer peripheral the other two types are output devices and storage devices. Examples of input devices include keyboards, mice, scanners, digital cameras and joysticks. For example, the image shows an inkjet printer, an output device that can make a hard copy of anything shown on the monitor. Examples of input devices include keyboard, mouse, image scanner, digital cameras and joysticks. A typical mfp may act as a combination of some or all of the following devices. When i draw using a mouse, it is an input to the computer. 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. Input is usually given by clicking the mouse or typing on the keyboard. Pdf computer input and output devices ingamule siraji. Describe the purposes of scanners and readers and list some types of scanners and readers in use today. The data can be in the form of text, graphics, sound, and text. Explain different types of output devices perfect computer. Input and output devices of a computer system are the devices that connect you to computer.
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. In computing, an input device is computer hardware which is used to enter data for processing. 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 and output devices input devices allow us to send information to the computer. Jan 05, 2017 input devices the devices which are used to give data and instructions to the computer are called input devices. Types of storage devices physical components or materials on which data is stored are called storage media. Two main categories of storage technology used today are magnetic storage and optical storage. Input devices let you to transfer data and user command into the computer system. The computer transmits data to the drive, where it is saved and can be later accessed. Input device defined an input device for a computer allows you to enter information. First, the computer receives a voltage signal input from an input device. An input device is a hardware or peripheral device used to send data to a computer. What an input device sends inputs to a computer depends on the device.
Each function key has a unique meaning and is used for some specific purpose. A computer keyboard includes a set of alphabets az, numbers 09, symbols and function keys. Devices input and output unit 4 input output devices. Some commonly used inputoutput devices are listed in table below. Examples of io devices are cd drives, dvd drives, usb drives, hard disk drives hdds, and floppy disk drives. Input devices input devices any peripheral piece of computer hardware equipment used to provide data and control signals to a computer. Input devices input devices are those devices from which we can input data and instructions into the computers.
The input devices are the hardware that is used to transfer transfers input to the computer. The device can be as simple as a button or a switch on an instrument panel, or a. Joysticks are often used to control video games, and usually have one or more pushbuttons whose state can also be read by the computer. An input device is any hardware component that allows a user to enter data and instructions into a computer. Computer devices computer input and output devices 992019 designed by. The iop is similar to cpu except that it handles only the details of io. The stick is connected to the base, so the stick can move freely up to the 180 degree that is used to move an object on the screen by moving it. In computing, an input device is a 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.
Peripheral devices that perform input output functions between the operator and the computer are discussed in lesson 3, and lesson 4. Printers are one of the most used peripherals on computers and are commonly used to print text, images, and photos. Storage devices, which include disks and tapes, hold data and instructions for transfer to. The computer receives data through input devices, such as a keyboard. Inputoutput processor computer architecture tutorial. The picture shows a logitech trackball mouse, which is an example of an input device the most commonly used or primary input devices on a computer are the keyboard and mouse.
Chapter 4 input and output oakton community college. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter ii. List several different pointing devices and describe their functions. Pdf input output storages devices in computers researchgate. Audio input devices allow a user to send audio signals to a computer for processing, recording, or carrying out commands. When you work with the computer you feed your data and instructions through some devices to the computer. Input devices are part of the four main hardware components of a computer system.
Storage devices are also called secondary storage devices backing storage devices external storage devices or auxiliary storage devices. Given this space of possible continuous manual input devices, we discuss next some of. What is the difference between an input and output device. Output device can produce the final product of machine processing into a form usable by humans. Examples of io devices are cd drives, dvd drives, usb drives. Understand the devices that can be used for audio input. Computer peripheral devices and their functions explained. Explain different types of storage devices perfect. A touchscreen is a combined input and output device. Inputoutput organisation computer architecture tutorial. Monitors and printers are two of the most commonly used output devices used with a computer. Input devices imaging and video input devices optical scanner an optical scanner is a hardware input device that allows a user to take an image or text and convert it into a digital file, allowing the computer to read or display the scanned object. Each function key has unique meaning and is used for some specific purpose. The distinction between output devices and input devices becomes even more blurred in the real world.
Without any input devices, a computer would only be a display device and not allow users to interact with it. An input device allows users to communicate and feed instructions and data to computers for processing, display, storage andor transmission. List of input devices, output devices and both input. When the computer gives the printout, it is the output. Each iop controls and manage the input output tasks. A computer or laptop keyboard is kind of hardware device that you can use to type data in a computer system. This tutorial explains computer peripheral devices and their function in details with examples. Explain different types of storage devices in computer systems storage devices storage devices are used to store data and instructions permanently.
Inputoutput devices and interaction techniques 2004. An inputoutput processor iop is a processor with direct memory access capability. Input devices are types of peripheral devices that communicate with. Mouse and keyboards take physical movements that the human user outputs and convert them into input signals that a computer can understand. The image below shows where input dev ices fit into a computer system. The most fundamental pieces of information are keystrokes on a keyboard and clicks with a mouse. 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. A keyboard is the most fundamental input device for. Generally input devices are manual or direct data entry devices.
The function of an input device is to communicate information to a computer or other sort of information processing equipment. Explain the case study on grass cutters vs gas cutters. 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. Learn how computer peripheral devices such as ram, rom, processor, input and out device, motherboard and storage device work with functions and specifications. Micr input device is generally used in banks because of a large number of cheques to be processed every day. Ingamule siraji 1 a computer is an electronic device that works. 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.
Input devices the devices which are used to give data and instructions to the computer are called input devices. Here i am going to share you about list of basic input devices, output devices and both input output devices. Keyboard and mouse accepts input from a user and sends that data input to 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. Io devices are used to interact with the computer system. Inputoutput devices are required for users to communicate with the computer.
Input devices are devices attached to the computer which accept input and feed it to the computer. Computer inputoutput ports and interfaces 1 terms and abbreviations. New input devices and media can help redress this imbalance by obtaining data from the user. 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. Input devices are necessary to convert our information or data into a form which can be understood by the computer. Input output devices list with their functions pcguide4u. Digitizer is an input device which converts analog information into digital form. In this, the computer system is divided into a memory unit and number of processors.
Output device display data from the memory of the computer. Computer dictionary definition for what input device means including related links, full listing, information, and terms. Input device simple english wikipedia, the free encyclopedia. Explain different types of storage devices perfect computer. Input devices accept data and instructions from the user. However, nearly all examples of humancomputer interaction require both input and output to do. They can be used by the computer to create a picture of whatever the camera had been pointed at. Following are few of the important input devices which are used in a computer. Inputoutput devices dont only produce output, but can also be used as storage and input devices.
The best method of determining all of the input devices your computer has is to go through the list above. What is input device in hindi input device electronic device computer part. How do you ever wonder how information gets in your computer and how comes out in a form you can use. An output device is any peripheral that receives data from a computer, usually for display, projection, or physical reproduction. An input device is any peripheral used to provide data and control signals to a computer. Job interview questions on basic computer technology and internet part2. Computers and sensorsoperation,diagnosis,and service 593 figure 253 many electronic components are. Peripheral device, also known as peripheral, computer peripheral, input output 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 computer is only useful when it is able to communicate with the external environment. A color monitor can display from 16 to over 1 million. Input output devices dont only produce output, but can also be used as storage and input devices. So you can give examples and also a little about keyboard. An input device is any tool device for entering information into a computer.
Input and output devices can also be written as io devices. Input is any data or instructions entered into the memory of a computer. Examples of input devices include keyboards, mouse, scanners, digital cameras, joysticks, and microphones input devices can be categorized based on. The devices which are used to input the data and the programs in the computer are known as input devices.
In some cases, an audio output device can be used as an input device, in order to capture produced sound. Lesson 2 concentrates on the devices commonly used to perform input and out put functions between the computer mainframe and other machines. The banks code number and cheque number are printed on the cheques with a special type of ink that contains particles of magnetic material that are machine readable. Computer input and output devices fun learning computer. The designation of a device as either input or output depends on perspective. Output devices printer printer is an external hardware device responsible for taking computer data and generating a hard copy of that data. Explain what digital cameras are and how they are used today.
202 543 634 1431 575 20 1431 1271 896 312 911 1399 470 292 1397 1387 940 1218 1047 1490 579 1407 183 341 1120 500 463 953 846 352 1029 851 100 1385 595 332 48 1047 236 17