The devices which are used to give data and instructions to the computer are called input devices. 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. The microphone is used for various applications like adding sound to a multimedia presentation or for mixing music. Data that has been processed into a useful form, called information p. Pdf computer input and output devices ingamule siraji. Input and output the computer mouse and the keyboard are both hardware devices that allow you to communicate with the computer. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer. This page contains computer hardware seminar and ppt with pdf report.
And when you think your computer is running many programs at once, in reality, its the operating system thats quickly switching between programs, sharing that cpu for fractions of a second. 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 devices input is any data or instructions entered into the memory of a computer. The cpu is further includes arithmetic logic unit alu and control unit cu. Five widely used input devices are the keyboard, mouse, microphone, scanner, and web cam. Nov 27, 2018 input output device based mcq mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs. Difference between input and output devices pediaa. The input devices of computer systems are electromagnetic devices which acknowledge information and accept data or set of instruction from outside the world and translate this data into machine meaningful and readable form. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system. Speakers can be used for various sounds meant to alert the user, as well as music and spoken text. It can be text, graphics, tactile, audio, and video some of the output devices are visual display units vdu i.
For example, below is a basic list of steps of how an output device works. Output device are computer hardware that allow a computer system to communicate information to a user or another system. The input data form may be text, sound, video, artwork etc. Apart from cpucentral processing unit, the other two main components are input and output devices. Input and output unit or input and output device io provide a way to interact with a computer. Devices for communication between computers, such as modems and network cards, typically perform both input and output operations. Pay special attention to devices with an orange background, you need to be able to describe exactly how they work. These components include the central processing unit, primary memory, and the system board.
Output devices device that a computer sends data or instructions to contents. Parts of a computer class iii, iv and v thinking of. Input devices pointing devices keyboard optical input devices audio input device video inpu device 7. Device that transmits and receives documents over telephone lines p. 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. Output devices an output device is any hardware component that conveys information to one or more people. For example, a computer mouse can is only an input device, because it can send data but cannot receive any data back. Computer hardware output devices computer science essay. Output devices speakers a hardware device connected to a computers sound card that outputs sounds generated by the computer. 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. The term computer hardware or computer parts is used to describe computer components that can be seen and touched. Cpu controls all the connected input and output devices. Devices input and output unit 4 input output devices.
An output device is any piece of computer hardware equipment which converts information into humanreadable form. These inputoutput devices are also known as peripherals since they surround the cpu and memory of a computer system. Computer hardware and maintenance 17428 compiled by. Computer input devices act as a medium of communication and correspondence between computer and the outside world.
Computer hardware blog output devices 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. Karande ic hodif page 1 of 16 input and output devices input devices 1 keyboard. This information can be in any form, and includes sound, images, and even tactile experiences. On a computer keyboard input device, if you type h, it sends inputs a signal to the computer. 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. 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.
A computer or laptop keyboard is kind of hardware device that you can use to type data in a computer system. Computer keyboards a keyboard is an input device is a board represented with a lot of different buttons. Joysticks are often used to control video games, and usually have one or more pushbuttons whose state can also be read by the computer. What are the input devices of computer system chtips. Six widely used input devices are the keyboard, mouse, microphone, scanner, digital camera and pc video camera. A mouse is a type of input hardware device that is commonly used in desktop computers. 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 reverses the process, translating the digitized signals into. The following is a list of the most common input devices which are nowadays found in a computer system. Includes teachers powerpoint, activity, worksheet, and plenary. Software refers to a set of instructions to perform a. Ther are various types of input and output devices. This is a ball which is half inserted and by moving fingers on ball, pointer can be moved. Mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs.
Computer output devices are those use to display data that has been process either in hardware or software form to make sense to an individual or group of persons. Fahad khan an input device is a piece of hardware that is used to enter data into a computer. A track ball comes in various shapes like a ball, a button and a square. Input devices o level computer science 2210 prepared by. Few examples of output devices are printers, projector, plotters, monitor, speakers, head phone, etc. Here youll find the complete examples of input and output devices. 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. Jan 12, 2017 a desktop computer is made up of three parts as discussed in computer components. Following are few of the important output devices which are used in a computer. Examples of input devices include keyboards, mice, scanners, digital cameras and joysticks. For performing these functions, computer systems consist of input devices, a central processing unit cpu and output devices.
Input and output devices are the basic components of a computer system. Monitors and printers are two of the most commonlyknown output. Contentsshow input devices an input device is an piece of hardware equipment which when plugged into a computer, provides data and control signals. A new type of output device is been developed these days, known as speech. Input output devices list with their functions pcguide4u. Output is the process of transmitting the processing data into a form that makes sense to human. There are various types of input device by which a user can ask computer to solve their query or processes. Computer output refers to processed data called information. Alternatively referred to as io, inputoutput is any software or hardware device that is designed to send and receive data to and from a computer hardware component. These devices communicate with cpu to receive the inputs from a user and output the results in some form or the other. Since the whole device is not moved, a track ball requires less space than a mouse. It forms images from tiny dots, called pixels that are arranged in a rectangular form. An input device are mechanical device which helps user to input the data in to your computer machine.
Jan 05, 2017 the devices which are used to give data and instructions to the computer are called input devices. Mcq input and output device of computer with answers pdf. A computer monitor is an output device, because it can. Full lesson for gcse computer science input and output io devices. Track ball is an input device that is mostly used in notebook or laptop computer, instead of a mouse. Pointing devices a pointing device, or sometimes called a pointing tool, is a hardware input device that allows the user to move. Output devices can usually only be used to send data from the computer. Inputoutput devices are required for users to communicate with the computer. Device that takes image from a computer screen and projects it onto a larger screen p. Following on from lesson 2, this lesson covers common input and output devices, including computer accessibility for disabled users. An input device is a piece of hardware that is used to enter data into a computer. Examples of input and output devices computersciencementor.
An input device is any hardware component that allows a user to enter data and instructions into a computer. Output devices speakers a hardware device connected to a computer s sound card that outputs sounds generated by the computer. For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices. Computer output devices receive information from the computer, and carry data that has been processed by the computer to the user. Computer hardware is the physical part of the computer system, the machinery and equipment. Output devices provide data in myriad different forms, some of which include audio, visual, and hard copy media. Magnetic ink card readermicr micr input device is generally used in banks because of a large number of cheques to be processed every day. Input, processing, and output devices a pc in every home february 3, 2000 ford will make available to all 330,000 employeeshourly and salariedan hp pavilion pc, an hp deskjet printer and access to the internet from their homes.
Nov 22, 2016 input devices it is an electromechanical device that can be used to enter data and instructions to the computer. Following are some of the important input devices that are used in a. Input is usually given by clicking the mouse or typing on the keyboard. Dec 14, 2010 here i am going to share you about list of basic input devices, output devices and both inputoutput devices related to computer. Most of the keyboards have between 80 and 110 keys including 1 typing keys qwerty 2 numeric keypad 3 function keys 4 control keys. Difference between input devices and output devices. The major components of generalpurpose computer system are input unit, maininternal memory or storage unit, output unit, central processing unit. Now a day computer is one of the most important field for every examinations. Any device has to be connected to the cpu to receive or send information. Microphone is an input device to input sound that is then stored in digital form. They are divided into two categories 1 manual input devices devices that need human involvement to input data. 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.
Computer input, processing, output and storage devices. List of input devices, output devices and both input output. An input device is used to enter the data and instructions into the computer. Input devices it is an electromechanical device that can be used to enter data and instructions to the computer. So dear reader i have provided top expected gk questions from input and output device of computer. Jun 11, 2015 computer hardware seminar and ppt with pdf report. They are divided into two categories 1 manual input devices devices that need human involvement to input data 2 automatic input devices devices that do not need human involvement to input data. The computer will be of no use unless it is able to communicate with the outside world. 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.
An input device converts incoming data and instructions into a pattern of electrical signals in binary code that are comprehensible to a digital computer. Difference between input devices and output devices is that an an input device is any hardware component that allows you to enter data and instructions into a computer. The designation of a device as either input or output depends on perspective. Input output devices questions and answers computer. Input and output devices make up the hardware interface between a computer and a scanner or 6dof controller. Output devices allow us to receive information from the computer. Without these input devices, the computer would be a simple device and not allow users to interact with it. It only processes the information given by the input devices and sends the result to the output devices. The system unit contains the electronic components used to process and temporarily store data and instructions figure 3. The devices are usually used for display, projection, or for physical reproduction. Inputoutput devices basic computer concepts wiki fandom. It decides when a program is run by the central processing unit, whether that program can access the computer s input and output devices.
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