These inputoutput devices are also known as peripherals since they surround the cpu and memory of a computer system. The following is a list of the most common input devices which are nowadays found in a computer system. Input and output devices allow the computer system to interact with the outside world by moving data into and out of the system. Inputoutput organisation computer architecture tutorial. The input devices translate the information into the form understandable by 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. Output device can produce the final product of machine processing into a form usable by humans. 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. These devices can help us enter data into the computer. Following are some of the important output devices used in a computer. The computer will be of no use unless it is able to communicate with the outside world. The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing additional functions. Here is the basic idea of input and output devices and how they are different from one another. An input device is a hardware device that is used to provide input data instructions to a computer so that it can be processed.
Chapter 5 inputoutput devices computer science igcse. Complete o level computer science 2210 guide, latest past papers yearly and topical, all latest computer science o level. Projectors are often used in meetings and presentations so that everyone in the room can view the presentation. Computer input and output devices fun learning computer for kids duration. The keyboard is the most common and widely used input device. Most computer data output that is meant for humans is in the form of audio or video. Nov 16, 2019 an output device works by receiving a signal from the computer and using that signal to perform a task to display the output. Input devices it is an electromechanical device that can be used to enter data and instructions to the computer. Keyboard is the most common and very popular input device which helps to input data to the computer. Both output and input devices are examples of auxiliary or peripheral devices. Input and output devices of computer computer notes. Those signals are then interpreted by the computer and displayed, or output, on the. But before discussing the various components of a computer system, ie the input output devices and storage devices,in this article, we are going to discuss the input output devices of a computer system. Monitor, printer, plotter, speaker, and multimedia projector.
Nov, 2018 however, some devices can accept input and display output, and they are referred to as io devices input output devices. Introduction input and output devices are very important for computers, without them,computers will not be as functional. As you know computer is very important section to get a good score for bank exam. An input device is any tool device for entering information into a computer. Input output devices are usually called io devices. Inputoutput devices dont only produce output, but can also be used as storage and input devices. Examples include monitors, projectors, speakers, headphones and printers. Computer science paper 1 notes o level computer science. Dear aspirant, as you know computer is very important section to get a good score for bank exam. Sep 07, 2017 input devices a device that can be used to insert data into a computer system is called as input device. An output device is used to display the data or information that we receive from the computer.
Input device translates words, sounds images, and actions that people understand into symbols that the system unit can process. Input and output devices school of computer science and. Out put devices are used to display results of processing to the user. For example, the speakers of a multimedia computer system are directly connected to a device controller called an audio card such as a soundblaster, which in turn is connected to the. Data, instructions and program that help to perform some processing on computer are called input.
Nov 22, 2016 input devices pointing devices keyboard optical input devices audio input device video inpu device 7. Dec 29, 2016 an input devices converts the data and instructions into binary form that computer can understand. Without these input output devices, a computer is just a dumb machine that cant operate effectively and efficiently to perform a specific task. An input devices converts the data and instructions into binary form that computer can understand. List of input devices, output devices and both 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. Explain different types of output devices perfect computer. Pointing devices a pointing device, or sometimes called a pointing tool, is a hardware input device that allows the user to move the mouse cursor in a computer program or operating system. An output device works by receiving a signal from the computer and using that signal to perform a task to display the output. 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, motors, buzzers, heaters, lightslamps.
Following are some of the important input devices which are used in a computer keyboard. Any data or instruction entered into the computer is known as input. The use of these devices depends on the type and purpose of output. Input or output devices that are connected to computer are called peripheral devices. What is the difference between an input and output device. They are directly connected to an electronic module inside the systems unit called a device controller.
These scanned images are then used in computer aided design cad, or sent to a d printer to take a 3d printout. When you work with the computer you feed your data and instructions through some devices to the computer. Input devices include keyboards, mouse, digital camera and light pen. Monitors, commonly called as visual display unit vdu, are the main output device of a computer. Fahad khan an input device is a piece of hardware that is used to enter data into a computer. An input device sends information to a computer system for processing, and an output device reproduces or displays the results of that. 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. Jan 05, 2017 the devices which are used to give data and instructions to the computer are called input devices. An output device can be used to display or print the intermediate or final results performed by computer. It allows people to supply information to computers without any input devices, a computer would only be a display device and not allow users to interact with it, examples of input devices include keyboards, mouse.
These devices are designed to read information into or out of the memory unit upon command from the cpu and are considered to be the part of computer system. Upsc competitive examinations ssc competitive examinations bank competitive examinations net. Input device is a hardware part of the computer that is used to enter data and instructions into computer memory. The sharpness of the image depends upon the number of pixels.
Examples of io devices are cd drives, dvd drives, usb drives, hard disk drives hdds, and floppy disk drives. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Output deviceoutput devices return processed data that is information, back to the user. An input device is any peripheral used to provide data and control signals to a computer.
Computer input devices are keyboard, mouse, touchscreen, scanner, microphone and trackball. The output data can be images, videos, sound and machining code. Its give me very good knowledge in field of computer thank very much. This section contains lots of files that will help you with your revision. Input device is a device through which data and instruction are entered into computer system. For example, below is a basic list of steps of how an output device works. This transformation is performed by input interface. This chapter will show you how inputoutput devices work.
Monitor is the most commonly used output device used to display results of processing. List of input devices, output devices and both input output. It forms images from tiny dots, called pixels that are arranged in a rectangular form. This gcse computer science module introduces output devices to your students, explaining.
Following are some of the important input devices which are used in a computer. In this chapter, some of the most commonly used output devices and their functions are explained. Thus, most output devices used by humans are in these categories. Output devices notes on data entry for nios online course. These scanned images are then used in computer aided design cad, or sent to a d printer to. Can you give an example of input and output for a computer. This video is made for students to help them with complete chapter notes. On a computer keyboard input device, if you type h, it sends inputs a signal to the computer. 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. Inputoutput devices are required for users to communicate with the computer. Hardcopy output refers to printed output printed on the paper or some material that can be touched and carried for being shown to others.
Input devices o level computer science 2210 prepared by. An output device is any device used to send data from a computer to another device or user. But before discussing the various components of a computer system, ie the input output devices and storage devices,in this article, we are going to discuss the input output devices of a. For example, as you can see in the top half of the image, a keyboard sends electrical signals, which are received by the computer as input. Input devices a device that can be used to insert data into a computer system is called as input device. The input devices translate the information into the form. The data entered through input device can be some text, some graphical image or symbol, sound etc, depending on the form of the raw data the various input devices are available. Computer output devices are monitor, printer, speaker and plotter.
Keyboard, mouse, track ball, track pad, joy stick, touch screen, light pen, scanner, digital. Monitor monitor is perhaps the most important output device because people interact. Dec 14, 2010 list of input devices, output devices and both input output devices related to computer. Here i am going to share you about list of basic input devices, output devices.
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. Mouse is a point and click input device with two or three buttons. Input devices are used to enter data and instructions into computer memory from external world. Output devices help transfer processed data to users. Aug 27, 2018 as you know computer is very important section to get a good score for bank exam. What are different types of input devices with examples. An input device is any hardware component that allows a user to enter data and instructions into a computer. They are divided into two categories 1 manual input devices devices that need human involvement to input data. Class4 computer chp1 notes, input and output devices. To work with these data, we require different types of devices. Various types of input devices can be used with the computer depending upon the type of data you want to enter in the computer, e. An input device is used to bring data into the system. The table to the right contains practice questions for this section and a range of mind maps which break the information down into small chunks. An input device helps you to communicate with the computer.
A variety of output devices are used with computer. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system. Job interview questions on basic computer technology and internet part2. The devices which are used to input the data and the programs in the computer are known as input devices. Jun 18, 2016 tags about input devices basic input output devices of computer dca notes of input devices difference between joystick and trackball different types of input devices. The computer transmits data to the drive, where it is saved and can be later accessed.
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