The most common of all input devices is the keyboard. An output device is an electromechanical device which accepts data from a computer and translates them into a human acceptable form. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer. Dear aspirants, welcome to online computer quiz in.
The following is a list of the most common input devices which are nowadays found in a computer system. A number of inputoutput devices are used with many types of microcomputers. For reference, here are the different values for the destination parameter. Inputs are the signals or data received by the system, and outputs are the signals or data sent from it. These examples of output devices also include inputoutput devices. Pdf portable document format is a device independent page description format introduced by adobe systems incorporated in the early 1990s. Output generated by output device classified into two types. Output devices projector an output device that can take the display of a computer screen and project a large version of it onto a flat surface. Pdf input output storages devices in computers researchgate. Digitizer digitizer is an input device which converts analog information into digital form.
Input and output devices school of information technology. For example, just as your brain thinks and allows you to do different activities, cpu is the brain on computer and connects the input and output devices. Output string output string dest, string name, boolean isutf8 description send the document to a given destination. A computer has two types of devices which help the user to enter data into the. Information is output in either hardcopy or softcopy form. We propose a complete methodology for the control of the color responses of the input output devices for color facsimile. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter ii. An output device is any piece of computer hardware equipment which converts information into. If we chose the download method, the name of the pdf file is determined by the page properties page title property. See more ideas about output device, devices, apple ipad accessories. Output devices or output units do not compute or process anything. Input and output devices 2 goals provide practical introduction to the hardware required for virtual environment and 3d interaction examine common and state of the art io devices advantages and disadvantages discuss how different io devices affect interface design.
In order for a process to be possible we need to feed in. It forms images from tiny dots, called pixels that are arranged in a rectangular form. An overview of input and output devices input, output and secondary storage devices are collectively known as peripherals the processor or central processing unit cpu makes all the calculations of the computer. Computer is fed with a lot of data to be processed and organised. In general, the more pixels often expressed in dots per inch, the sharper the image. Pdf assinment find, read and cite all the research you need on researchgate. It forms images from tiny dots, called pixels that are. How it shows you what it is doing output devices translate the computers output into the form understandable by users. Input devices a keyboard it is a text base input device that allows the user to input alphabets, numbers and other characters. Following are few of the important output devices which are used in a computer.
Devices input and output unit 4 input output devices. Input devices pointing devices keyboard optical input devices audio input device video inpu device. Research computer input and output devices world of invention. The devices which are used to input the data and the programs in the computer are known as input devices. Next, click the add icon in the top center of the screen before selecting the place in the document where you want to insert your text. In the case of a browser, the pdf viewer may be used or a download may be forced. Input and output devices 2 goals provide practical introduction to the hardware required for virtual environment and 3d interaction examine common and state of the art io devices advantages and disadvantages discuss how. Input devices input is any data or instructions entered into the memory of a computer. Special software programs called screen readers attempt to identify and interpret what is being displayed on the screen and speech synthesizers convert data to vocalized sounds or text. Inputs are the signals or data received by the system and outputs are the signals or data sent from it. Input devices in computer an input device is any 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. When computers were introduced into wide usage after world war ii, they revolutionized the way modern societies function. Input and output devices of computer linkedin slideshare.
It is also known as computer peripheral because they contain cpu and memory of computer system. Output is a processed data that is otherwise called information. Monitors, commonly called as visual display unit vdu are the main output device of a computer. Tui library like turbovision for console or terminal applications. An input device is a piece of computer hardware equipment used to provide. Accordingly the output devices are classified as hard copy devices and soft copy devices.
To type on a pdf, first open the file you want to use in adobe reader. In computing, inputoutput, or io, refers to the communication between a digital processing system such as a computer or an embedded system, and the outside world possibly a human, another processing system or a device. These examples of output devices also include input output devices. Now a day computer is one of the most important fields for every examination. Thus the function of output devices is to provide the user with the means to view and use information produced by the computer system. Pdf input and output device characterization in the field. An input device is a peripheral which accepts data and sends it to the cpu. Aug 30, 20 types of input devices keyboard mouse scanner 5. The data that has been processed into a useful form is called output. An input device is any hardware component that allows a user to enter data and instructions into a computer. The size of a monitor is measured in inches diagonally across the screen. Singlesource publishing in multiple formats for di. Output device can produce the final product of machine processing into a form usable by humans. Input output devices software pulseaudio mixer applet v.
An output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system such as a computer to the outside world. Assignment of input and output devices linkedin slideshare. Docbook is a wellknown system and dtd allowing singlesource publishing, with support for conversion to xhtml, dvi, postscript or pdf, with either xsl, xslfo or latex. Pdf output software free download pdf output top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. Input output devices with its types online coaching institute. Fpdf output methods for pdf files in php startq software blog. Output devices output hardware consists of devices that translate information processed by the computer into a form that humans can understand. Pdf output software free download pdf output top 4 download. Digitizer can convert a signal from the television or camera into a series of numbers that could be stored in a. In a graphical user interface, a pointer is a small symbol on the screen, whose location and shape change as a user moves a pointing device. Inputoutput devices constitute a major part of a computer system. Some commonly used inputoutput devices are listed in table below. Those devices just display the results in hard copy or soft copy. Input output devices software free download input output.
A color monitor can display from 16 to over 1 million different colors. An initial calibration of both scanner and printer is done offline. Characteristics of impact printers are the following. Input and output devices 1 form 3 computer studies. Pointing devices a pointing device, or sometimes called a pointing tool, is a hardware input device that allows the user to. Input and output devices bangladesh open university. Download fulltext pdf download fulltext pdf interaction styles and inputoutput devices article pdf available in behaviour and information technology 122. Input devices it is an electromechanical device that can be used to enter data and instructions to the computer. Input and output devices introduction the unit 4 presents the information of input and output devices. The inputoutput system module 2 3 analog devices in contrast to discrete devices, analog devices are input or output devices that provide or receive analog signals.
Pdf computer input and output devices ingamule siraji. Mcq input and output device of computer with answers pdf. Inputoutput devices are required for users to communicate with the computer. It is based on fpdf and html2fpdf, with a number of enhancements. Output devices output devices output hardware consists of. Mcqs on input and output devices gk objective question answer exam question answer for the competitive exam of govt jobs. Chapter 5 input describe two types of input list characteristics of a identify various types of s. Identify your body parts that can be compared to computer parts. Crt monitor, tftlcd monitor, ipslcd monitor, led monitor, touch screen as an output device, multimedia projector, laser printer, inkjet printer, dot matrix printer, wide format printer, 3d. We propose a complete methodology for the control of the color responses of the inputoutput devices for color facsimile. Input and output devices march, functions of input. Most modern monitors can display 1024 by 768 pixels, the svga standard.
It will be useful for all sbiibpslic exams and other competitive exams. Inputoutput devices are used to communication between processing system. Impact printers nonimpact printers impact printers the impact printers print the characters by striking them on the ribbon which is then pressed on the paper. Output devices types of monitor lightemitting diode led less space lighter very expensive provide higher contrast and. Many of these are less complex versions of io devices that have been available for larger computer systems. It can be text, graphics, tactile, audio, and video some of the output devices are visual display units vdu i. Primarily, they have allowed for the more efficient processing and storing of vast amounts of information.
Output that is in the form of metallic or audio form, which is cannot be read directly by the user. Inputoutput simple english wikipedia, the free encyclopedia. Without io devices, a user cannot communicate with the computer. Speech output systems can be used to read screen text to computer users. Thus, a computer must have a system to receive information from the outside world and must be able to communicate results to the external world. Many singlesource publishing approaches start from xml as the source of content 10. As explained in the fpdf documentation, you have to use the d as parameter to the output function to send the pdf to the browser and force a file download with the name given by name.
So dear reader i have provided top expected gk questions from input and output device of the computer. We can output a pdf directly to the browser, or prompt the user to download the pdf file. The material processed by a computer, however, must still be entered. Output devices monitor features display resolution the resolution of a monitor indicates how densely packed the pixels are.
An output device is any piece of computer hardware equipment which converts information into humanreadable form. Pointing devices a pointing devices is an input devices that allows a user to control a pointer on the screen. Examples of output devices are printer,monitor, speakers. They are required to enter data and instructions in a computer so that the computer can process that data and provide the result to the user. Click on document chapter 3 input and output devices. Output string outputstring dest, string name, boolean isutf8 description send the document to a given destination. Input output devices software eltima serial port terminal v. Analog signals are continuous and can have any number of statesnot just two, as with discrete digital signals. Fpdf is a php class which allows you to generate pdf files with pure php, that is to say without using the pdflib library for those who are already familiar with fpdf, this post will show you how to output your pdf file using fpdf. A number of input output devices are used with many types of microcomputers. Input and output computer devices the ins and outs of the computer chad hutchinson kaplan university abstract the computer that we use in our homes and places of business usually consists of a box containing the computer, a mouse, a couple of disks with drivers, a monitor for output and a keyboard for input. For many authors, it is simply not convenient to write. Printer is an output device, which is used to print information on paper.