Input devices of computer and their functions pdf

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input devices of computer and their functions pdf

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These are used to write documents but can be used to navigate user interfaces in lieu of a mouse. The computer is able to register the movement of the mouse and translate it as movement of the cursor on the screen. A mouse also contain buttons that allow the user to select objects, move windows or open applications. Many also include a scrolling wheel to allow for scrolling through long documents or Web pages. Many users prefer a trackball to a mouse, because it involves less wrist movement, reducing repetitivemotion issues.


The Input Devices are the hardware that is used to transfer transfers input to the computer. The data can be in the form of text, graphics, sound, and text. Output device display data from the memory of the computer. Output can be text, numeric data, line, polygon, and other objects. The most commonly used input device is a keyboard. The data is entered by pressing the set of keys.


The computer processes the data and then produces. Introduction II. Input Devices a. Keyboard,mouse,joystick,scanners,digital camera, bar code reader, touch Sreeen,Speech input device microphone III. Standard Methods of Input Input device enables you to input information and commands into the computer. The Keyboard One of the first peripherals to be used with a computer and is still the primary input. Basics of Computer :: 1 1 Basics of Computer 1.

Computer input and output devices

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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.

Inputs are the signals or data received by the system and outputs are the signals or data sent from it. For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices. Devices for communication between computers, such as modems and network cards , typically perform both input and output operations.


  • Without any input devices, a computer would only be a display device and not useful where there is a The Function keys or F1 through F12 keys are used. Lori S. - 03.05.2021 at 03:03
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