input and output devices pdf notes

Input and output devices pdf notes

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Input devices

Basics of Computer and Input Devices with Examples for Competitive Exams

Input Devices

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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.

Input devices

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Get top class preparation for UGC right from your home: Get detailed illustrated notes covering entire syllabus : point-by-point for high retention. A Computer is a General-purpose machine, commonly, accepts inputs , stores, manipulates, and generates outputs data as numbers, text, graphics, voice, video files, or electrical signals, in accordance with instructions called a program. This design is still used in most computers produced today. Mauchly at the University of Pennsylvania. Hardware — Computer hardware are the physical parts of computer, such as the monitor, keyboard, and mouse. It also includes all the parts inside the parts of computer such as the hard disk drive, motherboard, video card, and many others. Input Devices - Input device is a part of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance.

Basics of Computer and Input Devices with Examples for Competitive Exams

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.

Input Devices

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.

Keyboard is the most common and very popular input device which helps to input data to the computer. The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing additional functions. These keys include the letter keys A-Z and digit keys 09 which generally give the same layout as that of typewriters. It is used to enter the numeric data or cursor movement.

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Input Devices How to tell it what to do : This unit makes link between user and computer. The input devices translate the information into the form understandable by computer. Output Devices: How it shows you what it is doing Output devices translate the computer's output into the form understandable by users. It forms images from tiny dots, called pixels that are arranged in a rectangular form. The sharpness of the image depends upon the number of pixels. Printer: Printer is an output device, which is used to print information on paper.

Notes on Input & Output Devices

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Беккер еще сильнее вцепился во внутреннюю часть проема и оттолкнулся ногами. Тело налилось свинцовой тяжестью, словно кто-то изо всех сил тянул его. Беккер, стараясь преодолеть эту тяжесть, приподнялся на локтях. Теперь он был на виду, его голова торчала из оконного проема как на гильотине. Беккер подтянул ноги, стараясь протиснуться в проем. Когда его торс уже свисал над лестницей, шаги послышались совсем .

Она посмотрела на него, потом на кольцо. Глаза ее увлажнились. - О, Дэвид… у меня нет слов. - Скажи. Она отвернулась.

Там было темно, но он разглядел дорогие восточные ковры и полированное красное дерево.

5 comments

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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.

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  • Wildhungsunli 20.04.2021 at 11:31

    Output Device can produce the final product of machine processing into a form usable by humans.

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  • AndrГ© S. 24.04.2021 at 04:25

    Input/Output Devices. Contents: I. Introduction. II. Input Devices a. Keyboard,​mouse,joystick,scanners,digital camera, bar code reader, touch Sreeen,Speech.

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