input and output devices definition pdf

Input and output devices definition pdf

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Computer Basics: What Is an Output Device? 10 Examples

What are input and output devices?

6 Major Difference Between Input And Output Device With Examples

Paul's passion for technology and digital media goes back over 30 years. Born in the UK, he now lives in the US.

For other information, see the Ghostscript overview. Overview High level devices are Ghostscript output devices which do not render to a raster, in general they produce 'vector' as opposed to bitmap output. Such devices currently include: pdfwrite, ps2write, eps2write, txtwrite, xpswrite, pxlmono, pxlcolor and docxwrite.

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For other information, see the Ghostscript overview. You may also be interested in how to build Ghostscript and install it , as well as the description of the driver interface. Documentation for some older, superceded devices has been moved to another document. In general such devices are deprecated and will be removed in future versions of Ghostscript. In general all older printer drivers can be replaced by the ijs interface and one of the available 3rd party raster driver collections. We recommend moving to the ijs device for all such printing. Several different important kinds of measures appear throughout this document: inches, centimeters and millimeters, points, and bits per pixel.

Computer Basics: What Is an Output Device? 10 Examples

A peripheral device is generally defined as any auxiliary device such as a computer mouse or keyboard, that connects to and works with the computer in some way. RAM—random access memory—straddles the line between peripheral and primary component; it is technically a storage peripheral, but is required for every major function of a modern computer and removing the RAM will effectively disable any modern machine. Many new devices such as digital watches, smartphones and tablet computers have interfaces which allow them to be used as a peripheral by a full computer, though they are not host-dependent as other peripheral devices are. According to the most technical definition, the only pieces of a computer not considered to be peripherals are the central processing unit, power supply, motherboard, and computer case. Usually, the word peripheral is used to refer to a device external to the computer case, like a scanner, but the devices located inside the computer case are also technically peripherals. In a system on a chip, peripherals are incorporated into the same integrated circuit as the central processing unit. In computing, an input device is a peripheral piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or other information appliance.

What are input and output devices?

In this lesson students consider a number of computing devices to determine what types of inputs and outputs they use. Groups are assigned to a computing device and based on a teacher-provided definition of input and output, list the inputs and outputs of their device. Earlier in the activity students are prompted to focus on more obvious physical inputs and outputs e.

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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.

6 Major Difference Between Input And Output Device With Examples

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.

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. The designation of a device as either input or output depends on perspective. Mice and keyboards take physical movements that the human user outputs and convert them into input signals that a computer can understand; the output from these devices is the computer's input. Similarly, printers and monitors take signals that computers output as input, and they convert these signals into a representation that human users can understand. From the human user 's perspective, the process of reading or seeing these representations is receiving output; this type of interaction between computers and humans is studied in the field of human—computer interaction.

Lesson 5: Input and Output

10 Examples of Output Devices

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.

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  • Marphisa R. 08.06.2021 at 19:06

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