Input And Output Device Pdf

input and output device pdf

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Chapter 9: Input-Output Devices

An input device sends information to a computer system for processing , and an output device reproduces or displays the results of that processing. 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 generated by a computer. For example, as shown in the top half of the image, a keyboard sends electrical signals, which are received as input. Those signals are then interpreted by the computer and displayed, or output , on the monitor as text or images.

Output Device can produce the final product of machine processing into a form usable by humans. It provides man to machine communication. Keyboard is most common input device is used today. The data and instructions are input by typing on the keyboard. The message typed on the keyboard reaches the memory unit of a computer. Apart from alphabet and numeral keys, it has other function keys for performing different functions.

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An input device is essentially a piece of hardware component used to provide data and control signals to an information processing system such as computer or information device. Common inputs devices on modern computers include keyboards, mouse and touch screen which are used to enter commands and data directly. Other examples of input devices include scanners, digital cameras, joysticks and microphones. An output device is any hardware component that use received data from a computer to perform a task. The data received by the output device can be text, graphic, tactile, audio or video. Three most commonly used output devices are a printer, a monitor and speakers.

Computer Fundamentals: Pradeep K. Sinha & Priti Sinha. Slide 4/ Chapter 9: Input-Output Devices. Ref Page. Role of I/O Devices. Input data from external.

6 Major Difference Between Input And Output Device With Examples

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Choose the correct option and mark your choice against the corresponding question number in the given answer sheet by darkening the corresponding circle with a lead pencil. Now they are also used with nonportable desktop computer systems because they occupy less table space. Non-impact printers. Can print many special characters, different sizes of print, and graphics such as charts and graphs Are non-impact printers Most laser printers are monochrome, but color laser printers are also available Low speed laser printers can print 4 to 12 pages per minute. Produce audio output by selecting an appropriate audio output from a set of pre-recorded audio responses Applications include audio help for guiding how to operate a system, automatic answering machines, video games, etc.

Input/Output Devices and Interaction Techniques

What is the difference between an input and output device?

An output device is any piece of computer hardware equipment which converts information into human read able form. It can be text , graphics , tactile , audio , and video. A new type of Output device is being developed these days, known as Speech synthesizer , [2] a mechanism attached to the computer which produces verbal output sounding almost like human speeches. A display device is the most common form of output device. It presents output visually on computer screen. The output appears temporarily on the screen and can easily altered or erased, it is sometimes referred to as soft copy also. The display device for a desktop PC is called monitor.

Which among the device that converts computer output into a form that can be transmitted over a telephone line? A light sensitive device that converts drawing, printed text or other images into digital form is. All Rights Reserved. Toggle navigation. Bottom B. Left C.

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Hinckley and R. Jacob and C. Ware and J.


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Input Devices a. Keyboard,mouse,joystick,scanners,digital camera, bar code reader, touch Sreeen,Speech input device (microphone). III. Output Devices a.