Input output interface computer science engineering cse. Inputoutput devices and interaction department of computer. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system. A hammer presses the wheel against a ribbon, which in turn makes an ink stain in the shape of the character on the paper. We would get information into the television with our remote control, maybe an external keyboard, or even with voice communication. An input device is used to bring data into the system. Input and output devices introduction the unit 4 presents the information of input and output devices. Fax machine know more about all in detail, click here input output devices.
This is the most common output device connected with the computer to display the processed information. These scanned images are then used in computer aided design cad, or sent to a d printer to take a 3d printout. A color monitor can display from 16 to over 1 million different colors. Many of these are less complex versions of io devices that have been available for larger computer systems. Microphone gives sound or voice input to the computer. It allows the user to point to displayed objects, or draw on the screen, in a similar way to a touch screen but with greater positional accuracy. Monitor monitor is perhaps the most important output device. Keyboard keyboard is the most common input device used for entering text data directly into a computer. Information that comes from an external source and is.
Input devices as well as output devices are a neccessity in order to ensure that data is entered into a computer to be processed and the results output. In general, the more pixels often expressed in dots per inch, the sharper the image. Without io devices, a user cannot communicate with the computer. Input and output devices allow the computer system to interact with the outside world by moving data into and out of the system.
Printer can be categorized in several ways the most common distinction is impact and nonimpact. Output devices notes on data entry for nios online course. The devices which are used to input the data and the programs in the computer are known as input devices. Monitor printer plotter speaker input and output devices are also called io devices. The image below shows where input dev ices fit into a computer system. However, there are dozens of other devices that can. You can view the output on the monitor or you can print it on a paper using a printer. Student notes page 1 of 7 k aquilina input devices input is any data or instructions entered into the memory of a computer. Input and output devices can also be written as io devices. The data that has been processed into a useful form is called output. The distinction between output devices and input devices becomes. Dec 29, 2016 notes for bca students thursday, 29 december 2016. Our televisions used to be oneway output devices, but now they provide both output and input through the use of apps that are running on these smart tvs.
Output deviceoutput devices return processed data that is information, back to the user. Below are some of the previous important questions asked in the public examinations. The following is a list of the most common input devices which are nowadays found in a computer system. An output device does not send anything back to the computer. Keyboard and mouse are the most commonly used input devices. The input devices translate the information into the form. List of input devices, output devices and both input. Quickspecs inputoutput devices notebooks overview da 11862worldwide quickspecs version 20 6. In such a device sharing situation, one device that could temporarily borrow the input or output modalities from other devices must know which devices are available or allowed to offer such. Examples of io devices are cd drives, dvd drives, usb drives.
Monitor and the printer are the commonly used output devices. Hps inputoutput devices have a oneyear limited warranty. The size of a monitor is measured in inches diagonally across the screen. Input and output devices 3 lecture outline output devices visual displays audio output tactile and haptic output input devices discrete event devices continuous event devices combination devices speech input the first part of the lecture will describe a number of output devices that stimulate the. Input and output devices of a computer system are the devices that connect you to computer. Try these tasks and activities to enhance your output devices knowledge. The sharpness of the image depends upon the number of pixels. Mcq input and output device of computer with answers pdf. 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. Output is the result we get through output devices. An output device is used to send data out of the system. Output generated by output device classified into two types. Input device is a device through which data and instruction are entered into computer system.
Io devices are used to interact with the computer system. 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. The most common of all input devices is the keyboard. List of input devices, output devices and both input output devices. They are divided into two categories 1 manual input devices devices that need human involvement to input data 2 automatic input devices devices that do not need human involvement to input data. Computer input and output devices questions computer knowledge. Input and output devices bangladesh open university. Joysticks are often used to control video games, and usually have one or more pushbuttons whose state can also be read by the. Free notes for 3rd class computers input and output devices. Devices input and output unit 4 input output devices. Now a day computer is one of the most important field for every examinations. For example, the image shows an inkjet printer, an output device that can make. 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.
Input is usually given by clicking the mouse or typing on the keyboard. Input devices a keyboard it is a text base input device that allows the user to input alphabets, numbers and other characters. Virtually all external devices have buffers, control signals, status signals, and data bits. Notes for 3rd class computers input and output devices. 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. The microphone is used for various applications like adding sound to a multimedia presentation or for mixing music. Monitors, commonly called as visual display unit vdu, are the main output device of a computer. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer. External devices are not connected directly to the system bus because they have a wide range of control logics, as well as data transfer speeds and formats. Monitor receives data from a computer output and displays that information as text and images for users to view. Here i am going to share you about list of basic input devices, output devices and both inputoutput. The user sees the result after processing of data by the computer through output devices.
An output device is an electromechanical device which accepts data from a computer and translates them into a human acceptable form. An input device is any hardware component that allows a user to enter data and instructions into a computer. The keyboard looks very similar to the keyboards of electric typewriters, with some additional keys. The need for input and output devices teachers notes time min activity further notes 5 introduce the topic. 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. There are a number of tasks for you to carry out, be sure to read the information fully whilst completing the tasks.
It forms images from tiny dots, called pixels that are arranged in a rectangular form. Input devices let you to transfer data and user command into the computer system. Use the theory notes on the site to help you complete this booklet. Nov, 2018 an input device is any hardware device that sends data to a computer, allowing you to interact with and control it. When i draw using a mouse, it is an input to the computer. What is the difference between an input and output device. The need for input and output devices supporting the gcse. Input devices only allow for input of data to a computer and output devices only receive the output of data from another device. Magnetic ink card readermicr micr input device is generally used in banks because of a large number of cheques to be processed every day.
Computer dictionary definition of what output device means, including. 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. Output devices are used to display the result or information on the computer. Output device can produce the final product of machine processing into a form usable by humans. Most modern monitors can display 1024 by 768 pixels, the svga standard. Input and output devices input devices allow us to send information to the computer. Input output devices dont only produce output, but can also be used as storage and input devices. Worksheet 2 input devices make sure that you are familiar with all of the information detailed in this booklet. When the computer gives the printout, it is the output.
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. Apr 18, 2020 input output interface computer science engineering cse notes edurev is made by best teachers of computer science engineering cse. 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. Output devices monitor features display resolution the resolution of a monitor indicates how densely packed the pixels are. These inputoutput devices are also known as peripherals since they surround the cpu and memory of a computer system. To enter information and issue commands, you use input devices. A number of input output devices are used with many types of microcomputers. Peripheral device, also known as peripheral, computer peripheral,inputoutput device, or inputoutput device, any of various devices including sensors used to enter information and instructions into a computer for storage or processing and to deliver the processed data to a human operator or, in some cases, a machine controlled by the computer. Top 50 input output reasoning questions for ibps clerk. An input devices converts the data and instructions into binary form that computer can understand. Mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs.
So dear reader i have provided top expected gk questions from input and output device of computer. Projectors are often used in meetings and presentations so that everyone in the room can view the presentation. Input device captures information and translates it into a form that can be processed and used by other parts of your computer. Input devices imaging and video input devices optical scanner an optical scanner is a hardware input device that allows a user to take an image or text and convert it into a digital file, allowing the computer to read or display the scanned object. The most commonly used or primary input devices on a computer are the keyboard and mouse. Dear readers, ibps clerk 2018 examination is approaching very shortly, after seeing the analysis of this year ibps exams you all may conclude that more practice will be need to manage the time efficiently and to score good marks. Computer input and output devices research article from world of invention this encyclopedia article consists of approximately 4 pages of information about computer input and output devices. Our approach use operating system os to connect java programs to. Jan 05, 2017 the devices which are used to display the results or information are called output devices. Following are few of the important output devices which are used in a computer. Input output devices software eltima serial port terminal v. An input device is a piece of hardware that is used to enter data into a computer. Microphone is an input device to input sound that is then stored in digital form. 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.
This document is highly rated by computer science engineering cse students and has been viewed 10037 times. An input device helps you to communicate with the computer. It is a very famous cursorcontrol device having a small palm size box with a round ball at its base which senses the movement of mouse and sends. This section contains lots of files that will help you with your revision.
Data that has been processed into a useful form, called information p. A number of inputoutput devices are used with many types of microcomputers. Input devices are part of the four main hardware components of a computer system. Input devices o level computer science 2210 prepared by. Keyboards pointing devices game controllers scanners styluses microphones digital cameras web cams 2. And of course, the display itself is the output device. Computer is fed with a lot of data to be processed and organised.
Technical support is available seven days a week, 24 hours a day, as well as in online support forums. Inputoutput devices constitute a major part of a computer system. Computer devices computer input and output devices 992019 designed by. 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. Keyboards allow a computer user to input letters, numbers, and other symbols into a computer uses an arrangement of buttons or keys. 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. All io devices, however, do not send and receive the same type of signal. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter.
Here i am going to share you about list of basic input devices, output devices and both inputoutput devices related. Identify your body parts that can be compared to computer parts. Play the magician hat game and identify the input and output in it. Input output devices software free download input output. There are two kinds of viewing screen used for monitors. The input devices translate the information into the form understandable by computer. Output devices of computer input output system in computer architecture and organizatkion wine output is measured as an index output which is hypothesized to be influenced by two inputs c wine output is measured as an index output which is hypothesized to be influenced by two inputs c input devices of a computer intraosseous devices. It check omr answer sheet and reproduce result in excel, pdf format or print directly obtained outcome. An output device is any piece of computer hardware equipment which converts information into humanreadable form. Inputoutput devices are required for users to communicate with the computer.
The picture shows a logitech trackball mouse, which is an example of an input device. Any data or instruction entered into the computer is known as input. Research computer input and output devices world of invention. A light pen is a computer input device in the form of a lightsensitive wand used in conjunction with a computers crt tv set or monitor. Top 50 input output reasoning questions for ibps clerk mains 2018 free pdf download. Pdf computer input and output devices ingamule siraji. Monitor printer speaker headphone monitor a monitor is an output device similar. Input devices keyboard one of the primary input devices used with a computer. 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. Dear aspirant, as you know computer is very important section to get a good score for bank exam. Input devices are used to give data and instructions to the computer. They are divided into two categories 1 manual input devices devices that need human involvement to input data. Ingamule siraji 1 a computer is an electronic device that works.
The keyboard is the most common and widely used input device. Job interview questions on basic computer technology and internet part2. The computer transmits data to the drive, where it is saved and can be later accessed. Aug 27, 2018 as you know computer is very important section to get a good score for bank exam. Nov, 2018 an output device can receive data from another device and generate output with that data, but it cannot send data to another device. Fahad khan an input device is a piece of hardware that is used to enter data into a computer.
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