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. Printer is an output device, which is used to print information on paper. Digitizer digitizer is an input device which converts analog information into digital form. 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. Pdf output software free download pdf output top 4 download offers free software downloads for windows, mac, ios and android computers and mobile devices. 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 devices or output units do not compute or process anything. 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.
Output is the result we get through output devices. 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. A computer has two types of devices which help the user to enter data into the. Primarily, they have allowed for the more efficient processing and storing of vast amounts of information. An input device is any hardware component that allows a user to enter data and instructions into a computer. A number of inputoutput devices are used with many types of microcomputers. Many singlesource publishing approaches start from xml as the source of content 10. Input devices pointing devices keyboard optical input devices audio input device video inpu device. Inputoutput devices constitute a major part of a computer system. 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. 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. Input and output devices school of information technology. A color monitor can display from 16 to over 1 million different colors. Output devices output hardware consists of devices that translate information processed by the computer into a form that humans can understand.
Input and output devices march, functions of input. Input devices a keyboard it is a text base input device that allows the user to input alphabets, numbers and other characters. Input and output devices 1 form 3 computer studies. Pointing devices a pointing devices is an input devices that allows a user to control a pointer on the screen. Inputs are the signals or data received by the system and outputs are the signals or data sent from it. Inputoutput devices are used to communication between processing system. Input and output devices bangladesh open university.
Output string outputstring dest, string name, boolean isutf8 description send the document to a given destination. The data that has been processed into a useful form is called output. Dear aspirants, welcome to online computer quiz in. 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. Now a day computer is one of the most important fields for every examination. Input and output devices of computer linkedin slideshare. Accordingly the output devices are classified as hard copy devices and soft copy devices. An output device is an electromechanical device which accepts data from a computer and translates them into a human acceptable form. Mcqs on input and output devices gk objective question answer exam question answer for the competitive exam of govt jobs. Examples of output devices are printer,monitor, speakers.
The size of a monitor is measured in inches diagonally across the screen. 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. Without io devices, a user cannot communicate with the computer. Input output devices software eltima serial port terminal v. Tui library like turbovision for console or terminal applications. Assignment of input and output devices linkedin slideshare. Pdf assinment find, read and cite all the research you need on researchgate.
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. Digitizer can convert a signal from the television or camera into a series of numbers that could be stored in a. Research computer input and output devices world of invention. Many of these are less complex versions of io devices that have been available for larger computer systems. 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. Output device can produce the final product of machine processing into a form usable by humans. Pdf portable document format is a device independent page description format introduced by adobe systems incorporated in the early 1990s. Output is a processed data that is otherwise called information.
It can be text, graphics, tactile, audio, and video some of the output devices are visual display units vdu i. Input and output devices introduction the unit 4 presents the information of input and output devices. For reference, here are the different values for the destination parameter. If we chose the download method, the name of the pdf file is determined by the page properties page title property.
Pdf input and output device characterization in the field. Exploring and experimenting with output devices for childrens crafts. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer. Download fulltext pdf download fulltext pdf interaction styles and inputoutput devices article pdf available in behaviour and information technology 122. Following are few of the important output devices which are used in a computer. 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. The most common of all input devices is the keyboard. Mcq input and output device of computer with answers pdf. We propose a complete methodology for the control of the color responses of the input output devices for color facsimile. Output devices monitor features display resolution the resolution of a monitor indicates how densely packed the pixels are. Some commonly used inputoutput devices are listed in table below.
In the case of a browser, the pdf viewer may be used or a download may be forced. The method first calls close if necessary to terminate the document. Output string output string dest, string name, boolean isutf8 description send the document to a given destination. Chapter 5 input describe two types of input list characteristics of a identify various types of s. The devices which are used to input the data and the programs in the computer are known as input devices. These examples of output devices also include inputoutput devices. In order for a process to be possible we need to feed in. Information is output in either hardcopy or softcopy form. The following is a list of the most common input devices which are nowadays found in a computer system.
Fpdf output methods for pdf files in php startq software blog. Here we are providing sample questions in computer fundamentals. 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. Pdf input output storages devices in computers researchgate. 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. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter ii. To type on a pdf, first open the file you want to use in adobe reader. Output generated by output device classified into two types. It is also known as computer peripheral because they contain cpu and memory of computer system. Speech output systems can be used to read screen text to computer users. An output device is any piece of computer hardware equipment which converts information into humanreadable form. Singlesource publishing in multiple formats for di. For many authors, it is simply not convenient to write. Output devices output devices output hardware consists of.
Devices input and output unit 4 input output devices. How it shows you what it is doing output devices translate the computers output into the form understandable by users. These examples of output devices also include input output devices. Identify your body parts that can be compared to computer parts. Computer is fed with a lot of data to be processed and organised. 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. It will be useful for all sbiibpslic exams and other competitive exams. It forms images from tiny dots, called pixels that are. Pdf computer input and output devices ingamule siraji. We propose a complete methodology for the control of the color responses of the inputoutput devices for color facsimile. Input output devices software pulseaudio mixer applet v. So dear reader i have provided top expected gk questions from input and output device of the computer.
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. 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. Characteristics of impact printers are the following. Input devices input is any data or instructions entered into the memory of a computer. Inputs are the signals or data received by the system, and outputs are the signals or data sent from it. Thus the function of output devices is to provide the user with the means to view and use information produced by the computer system. Output that is in the form of metallic or audio form, which is cannot be read directly by the user. An input device is a piece of computer hardware equipment used to provide. When computers were introduced into wide usage after world war ii, they revolutionized the way modern societies function. It is based on fpdf and html2fpdf, with a number of enhancements. Inputoutput simple english wikipedia, the free encyclopedia. Input output devices software free download input output. It forms images from tiny dots, called pixels that are arranged in a rectangular form. Analog signals are continuous and can have any number of statesnot just two, as with discrete digital signals.
Most modern monitors can display 1024 by 768 pixels, the svga standard. Input devices it is an electromechanical device that can be used to enter data and instructions to the computer. Inputoutput devices are required for users to communicate with the computer. Aug 30, 20 types of input devices keyboard mouse scanner 5. Monitors, commonly called as visual display unit vdu are the main output device of a computer. Input output devices with its types online coaching institute. Play the magician hat game and identify the input and output in it. We can output a pdf directly to the browser, or prompt the user to download the pdf file. A temperature transducer is an example of an analog input device. See more ideas about output device, devices, apple ipad accessories. Those devices just display the results in hard copy or soft copy.
Click on document chapter 3 input and output devices. A number of input output devices are used with many types of microcomputers. The material processed by a computer, however, must still be entered. Pdf output software free download pdf output top 4 download. 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. Pointing devices a pointing device, or sometimes called a pointing tool, is a hardware input device that allows the user to. In general, the more pixels often expressed in dots per inch, the sharper the image. 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. An input device is a peripheral which accepts data and sends it to the cpu.
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