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Different Types Of Input And Output Devices Of Computer Pdf

different types of input and output devices of computer pdf

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Computer input and output devices

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 include typewriter-like keyboards; handheld devices such as the mouse , trackball, joystick, trackpad, and special pen with pressure-sensitive pad; microphones, webcams, and digital cameras.

They also include sensors that provide information about their environment— temperature , pressure , and so forth—to a computer. Another direct-entry mechanism is the optical laser scanner e. Output equipment includes video display terminals , ink-jet and laser printers, loudspeakers, headphones, and devices such as flow valves that control machinery, often in response to computer processing of sensor input data.

Some devices, such as video display terminals and USB hubs, may provide both input and output. Other examples are devices that enable the transmission and reception of data between computers—e. Even devices such as smartphones , tablet computers , and wearable devices like fitness trackers and smartwatches can be considered as peripherals, albeit ones that can function independently. Various standards for connecting peripherals to computers exist.

For example, serial advanced technology attachment SATA is the most common interface, or bus , for magnetic disk drives. A bus also known as a port can be either serial or parallel , depending on whether the data path carries one bit at a time serial or many at once parallel. Serial connections, which use relatively few wires, are generally simpler than parallel connections. Universal serial bus USB is a common serial bus. Peripheral device Article Media Additional Info.

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Computer peripherals are devices used to input information and instructions into a computer for storage or processing and to output the processed data. In addition, devices that enable the transmission and reception of data between computers are often classified as peripherals.

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Computer Input and Output Devices

The devices are usually used for display, projection, or for physical reproduction. Monitors and printers are two of the most commonly-known output devices used with a computer. A computer can still function without an output device. There is no indicator of errors, nor of the need for additional input. It creates a visual display by the use of which users can view processed data.


Figure Various pointing input devices. Page 8. Computer Basics. Light Pen. The earliest.


Computer - Input Devices

Paul's passion for technology and digital media goes back over 30 years. Born in the UK, he now lives in the US. Read on for 10 examples and the definition of an "output device. An output device is a piece of computer hardware that receives data from a computer and then translates that data into another form. That form may be audio, visual, textual, or hard copy such as a printed document.

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Computer Input And Output Device PDF in Hindi

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.

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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 include typewriter-like keyboards; handheld devices such as the mouse , trackball, joystick, trackpad, and special pen with pressure-sensitive pad; microphones, webcams, and digital cameras. They also include sensors that provide information about their environment— temperature , pressure , and so forth—to a computer.

3 Comments

  1. Poppy H.

    27.03.2021 at 13:29
    Reply

    Output Devices a. Monitor, Speaker, Printers (different types) Input/Output devices are required for users to communicate with the computer. In simple terms​.

  2. Didiane G.

    29.03.2021 at 21:40
    Reply

    Keyboard is the most common and very popular input device which helps to input data to the computer.

  3. Jeanette M.

    02.04.2021 at 13:24
    Reply

    Input and output devices of a computer system are the devices that connect you In this section we will discuss various types of input devices used for entering.

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