Computer Input And Output Devices Information Pdf


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24.03.2021 at 16:18
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computer input and output devices information pdf

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To interact with a computer, you need an intermediary, something that receives data you input and translates it for your computer. This intermediary is an input device. Input devices for communication are those that let you send sounds, thoughts, images or files to others via the computer.

Such devices make up the peripheral equipment of modern digital computer systems. Peripherals are commonly divided into three kinds: input devices, output devices, and storage devices which partake of the characteristics of the first two. An input device converts incoming data and instructions into a pattern of electrical signals in binary code that are comprehensible to a digital computer. An output device reverses the process, translating the digitized signals into a form intelligible to the user. At one time punched-card and paper-tape readers were extensively used for inputting, but these have now been supplanted by more efficient devices.

Input Devices for Business Communication

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. A printer is used to generate a hard copy or graphics on a physical medium such as paper.

Input & output devices

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.

A list of input and output devices can only be incomplete, because there are simply so many specialized devices out there. The way in which we use the printer to extract prints from in different colours. Digitizer can convert a signal from the television or camera into a series of numbers that could be stored in a computer. Keyboard and mouse are the most commonly used input devices. What is the difference between data and information?

Input and Output Devices

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2 Comments

Grau A.
27.03.2021 at 16:23 - Reply

An input device sends information to a computer system for processing , and an output device reproduces or displays the results of that processing.

Marmion B.
02.04.2021 at 22:10 - Reply

An output device is any piece of computer hardware equipment which converts information into human read able form.

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