For example, the lm555 datasheet from national semiconductor is on their website at what is the lm555. It will explain to you the components and the function of each components. Before an output can be produced by a computer it must have an output device connected to it. The image below shows where input dev ices fit into a computer system. Exploring and experimenting with output devices for childrens crafts. Pdf is the native file format of the adobe acrobat family of products.
An input device is any peripheral used to provide data and control signals to a computer. Super easy short computer notes to improve computer literacy and your it skills. Now a day computer is one of the most important field for every examinations. This is the most common output device connected with the computer to display the processed information. Note the restrictions specified in note 323736 with the print output with pdf. They are divided into two categories 1 manual input devices devices that need human involvement to input data. Dinesh thakur is a technology columinist and founder of computer notes and technology motivation. Inputoutput devices constitute a major part of a computer system. Monitor printer speaker headphone monitor a monitor is an output device similar. Student notes page 1 of 7 k aquilina input devices input is any data or instructions entered into the memory of a computer. The devices which are used to display the results or information are called output devices. Computer usually uses its input output channels to access secondary storage and transfers the desired data using intermediate area in primary storage. Computer output devices receive information from the computer, and carry data that has been processed by the computer to the user. This device reads bar codes and coverts them into electric pulses to be processed by a computer.
The devices are usually used for display, projection, or for physical reproduction. Version output type to convert the spool automatically into a pdf format into your local harddisk but not do a direct pdf printing. Overview input devices need to specify the objects and actions of interaction. Creating a printer to send a pdf as an attachment sap blogs. The speed of printers can be measured in characters per second cps or pages per minute ppm, the higher the values are, the faster the printer can produce output. An input device helps you to communicate with the computer. Input devices are part of the four main hardware components of a computer system. Inputoutput devices alona sorin seminar in computer science 236801 typewriter 9qwerty, christopher sholes 952% q w e r t y u i o p 32% a s d f g h j k l. The following is a list of the most common input devices which are nowadays found in a computer system. Input devices a keyboard it is a text base input device that allows the user to input alphabets, numbers and other characters. Fahad khan an input device is a piece of hardware that is used to enter data into a computer. Research computer input and output devices world of invention. Complete o level computer science 2210 guide, latest past papers yearly and topical, all latest computer science o level notes compiled from all web at one place for you.
Monitor and the printer are the commonly used output devices. Computer science paper 1 notes o level computer science. Output generated by output device classified into two types. A printer is an output device that produces a printout or hard copy of the output from a computer. Output is the result we get through output devices. These scanned images are then used in computer aided design cad, or sent to a d printer to take a 3d printout. In this section you will learn about the different types of output devices that are commonly in use.
So dear reader i have provided top expected gk questions from input and output device of computer. Thus, most output devices used by humans are in these categories. Output devices impact printer daisywheel similar to a ballhead typewriter, this type of printer has a plastic or metal wheel on which the shape of each character stands out in relief. The website will be updated on a regular basis, technology articles and breaking tech. Explain different types of storage devices perfect. Those devices just display the results in hard copy or soft copy.
Output devices nonimpact printer multifunction printer tonerbased an mfp is an office machine which incorporates the functionality of multiple devices in one. You can hang them on walls or wear them on your wrists. A hammer presses the wheel against a ribbon, which in turn makes an ink stain in the shape of the character on the paper. An output device is an electromechanical device which accepts data from a computer and translates them into a human acceptable form. Handbook of operational amplifier applications bruce carter and thomas r. Current uses of flatpanel displays include calculators, video games, monitors, laptop computer, graphics display. A micro phone is used to convert human speech into electric signals. Some commonly used inputoutput devices are listed in table below.
The flatpanel display refers to a class of video devices that have reduced volume, weight and power requirement in comparison to the crt. Here i am going to share you about list of basic input devices, output devices and both input output devices. Primarily, they have allowed for the more efficient processing and storing of vast amounts of information. Without io devices, a user cannot communicate with the computer. Projectors are often used in meetings and presentations so that everyone in the room can view the presentation. Device status table contains entry for each io device indicating its type. Hardware is a physical component of computer system such as input devices, output devices etc. Mcq input and output device of computer with answers pdf.
Mar 24, 2011 use can use sap note 317851 to implement the device types to use pdf. Input and output devices can also be written as io devices. They are divided into two categories 1 manual input devices devices that. The input devices translate the information into the form understandable by computer.
Save print output as pdf file in front end system using. An input device is any tool device for entering information into a computer. There are a number of tasks for you to carry out, be sure to read the information fully whilst completing the tasks. Handbook of operational amplifier applications rev.
List of input devices, output devices and both input. Input device is a device which transfers data and instructions. Apr 16, 2016 assignment of input and output devices 1. Print outputs can be routed to this output device for saving the print output as pdf file in the frontend system. Most computer data output that is meant for humans is in the form of audio or video. Pos scanner are hardware devices capable of reading a barcode and printing out the details of the product andor logging that product into a database so a company can easily keep track of its inventory. About input and output devices some examples of input and output devices lesson 2 input and output devices input devices allow us to send information to the computer. The size of a monitor is measured in inches diagonally across the screen. Hardcopy output refers to printed output printed on the paper or some material that can be touched and carried for being shown to others. Interaction styles and inputoutput devices article pdf available in behaviour and information technology 122. Hardware of computerinput devices scanner webcam keyboard mouse output devices leds lcd printer speakers storage devices primary storage devices secondary storage devices processing devices cpu. Input devices data glovepolhemus a modern attempt to provide the user with more degrees of freedom common in virtual reality applications polyhemus can provide six degrees of freedom rotation and translation head mounted display although primary a display device, it can also track position and orientation like polhemus space ball six degrees of freedom sphere.
Pdf source is written in ascii, but several encodings are provided to encapsulate binary data. Input is usually given by clicking the mouse or typing on the keyboard. Dear aspirant, as you know computer is very important section to get a good score for bank exam. Chapter 3 lecture notes chapter 3 inputoutput devices.
Following are some of the important output devices used in a computer. An output device is any peripheral that receives data from a computer, usually for display, projection, or physical reproduction. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer. Monitor monitor is perhaps the most important output device. Output devices or output units do not compute or process anything. What are dual devices or both input output devices. Output devices provide data in myriad different forms, some of which include audio, visual, and hard copy media. Any data or instruction entered into the computer is known as input. 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.
Basic computer hardware notes in pdf computer awareness is tested in almost every exam. Output devices glossary pg class notes, worksheets, links. 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. Recommended device for reading pdf books personal view. Free kcse mocks kcse questions and answers download free kcse marking schemes kcse revision kcse results. The lm555 is a timer chip that uses external resistors and capacitors to generate either a single pulse of a certain duration, or a. Monitors and printers are two of the most commonly used output devices used with a computer. Examples include monitors, projectors, speakers, headphones and printers. Quality notes, study materials, academic contents, videos and games.
When computers were introduced into wide usage after world war ii, they revolutionized the way modern societies function. 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. In fact, text characters are viewed as graphic objects in pdf, just as they are in postscript. Explain different types of storage devices in computer systems storage devices. How it shows you what it is doing output devices translate the computers output into the form understandable by users. Printer can be categorized in several ways the most common distinction is impact and nonimpact. The keyboard is the most common and widely used input device. Job interview questions on basic computer technology and internet part2. Devices that display, print, or transmit the results of processing from the computers memory. 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. The main and most common output devices in a computer system are the printer and the v.
An input devices converts the data and instructions into binary form that computer can understand. The data that has been processed into a useful form is called output. Class ix, computer, input and output devices printer a computer peripheral that puts text or a computer generated image on paper or on another medium, such as a transparency. In this video, well look at some common input and output devices. Input devices let you to transfer data and user command into the computer system. Output is a processed data that is otherwise called information. Worksheet 2 input devices make sure that you are familiar with all of the information detailed in this booklet. Any hardware component used to enter data, programs, commands, and user responses into a computer scanners and reading devices voice input keyboard pointing device video input digital p. For example, the image shows an inkjet printer, an output device that can make a hard copy of anything shown on the monitor. The material processed by a computer, however, must still be entered.
An input device is any hardware component that allows a user to enter data and instructions into a computer. Devices input and output unit 4 input output devices. Heres a look at output devices such as monitors, speakers, printers and ebooks. Output device can produce the final product of machine processing into a form usable by humans. Keyboard is a input device used for entering data into computer by pressing one key at one time. Monitors, commonly called as visual display unit vdu are the main output device of a computer. Input device is a device through which data and instruction are entered into computer system. This devices converts spoken words to mc language form. Some devices allow us to put information into our computer and get information out of our computer. Mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs.
The following procedure basically follows sap note 311037 to print via email, but to a pdf printer. Recommended device for reading pdf books hedrox june 2012 hi guys, i have some books about cinematography and pohotography that i would like to read, but when i. Data that has been processed into a useful form, called information p. 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. Output devices notes on data entry for nios online course. In my last post i have shared about the following job recruitment questions on basic computer technology and internetjob recruitment questions on basic computer technology and internet part1. An output device is any hardware component that can display information to a user. The devices which are used to input the data and the programs in the computer are known as input devices. Computer is fed with a lot of data to be processed and organised. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter ii. In this document we will be dwelving into the third option mentioned above which is the simplest way of meeting the requirement. One very common device that acts as both input and output is a touch screen. Input devices o level computer science 2210 prepared by.
Input and output devices, input device, output device, input and output devices of computer here, i am going to share about the list of basic input devices, output devices and both input output devices related to computer. Input devices a keyboard it is a text base input device that allows the user to. Input and output devices of a computer system are the devices that connect you to computer. To enter information and issue commands, you use input devices. Characteristics of impact printers are the following. Output devices allow us to receive information from the computer. Joysticks are often used to control video games, and usually have one or more pushbuttons whose state can also be read by the computer.
Use the theory notes on the site to help you complete this booklet. The sharpness of the image depends upon the number of pixels. When i draw using a mouse, it is an input to the computer. Printer is an output device, which is used to print information on paper.
For each out device you have to be able to identify it from an image, explain what it is used for and discuss advantagesdisadvantages. Ds3668 quad fault protected peripheral driver national does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and national reserves the right at any time without notice to change said circuitry and specifications. A visual display unit vdu or monitors are the most popular output devices used for producing softcopy output. If you already have pdf output types in your system, you can skip this step. Output deviceoutput devices return processed data that is information, back to the user.
Chapter 3 lecture notes chapter 3 inputoutput devices input data or instructions provided to a compute input device hardware that gives users the. Monitors, commonly called as visual display unit vdu, are the main output device of a computer. A bar code is nothing but data coded in form of light and dark bars. Following are few of the important output devices which are used in a computer. You can view the output on the monitor or you can print it on a paper using a printer. A joystick is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling.
A typical mfp may act as a combination of some or all of the following devices. 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 printer, speakers. An output device is any device used to send data from a computer to another device or user. A color monitor can display from 16 to over 1 million different colors. Jan 05, 2017 the devices which are used to display the results or information are called output devices. Caution when modifying device type zpdf1, see note 437696. Some exams like sbi po, sbi clerk, ibps po, ibps clerk, ssc cgl, railways rrb etc. Department of applied science prepared by jasleen kaur a.