A device that controls the movement of the cursor or pointer on a display screen. Understand how to input data into a handheld computer. A computer keyboard includes a set of alphabets az, numbers 09, symbols and function keys. Without io devices, a user cannot communicate with the computer. Computer inputoutput ports and interfaces 1 terms and abbreviations. Input devices is a way of entering data into the computer in different formats. They can be used by the computer to create a picture of whatever the camera had been pointed at. The computer is able to register the movement of the mouse and translate. This video of kriti educational videos describes about the parts of computer and their functions. Examples of io devices are cd drives, dvd drives, usb drives, hard disk drives hdds, and floppy disk drives. December 14, 2010 february 15, 2018 allaboutbasic in my last post i have shared about the following job recruitment questions on basic computer technology and internet. You use output devices to receive information that you can read, see or hear.
The following is a list of the most common input devices which are nowadays found in a computer system. Assignment on input and output devices linkedin slideshare. Without any input devices, a computer would only be a display device and not allow users to interact with it. Pdf input output storages devices in computers researchgate. Light pen track ball graphic tablet magnetic ink card readermicr. Input output devices list with their functions pcguide4u. Input and output devices are required for users to communicate with the computer. An output device that can take the display of a computer screen and project a large version of it. So that we can say in simple term, a computer input device is a hardware component that is used to enter data and instruction into the computer to perform specific task. Csca0101 computing basics 24 input devices keyboard shortcut keys. Digitizer is an input device which converts analog information into digital form. So dear reader i have provided top expected gk questions from input and output device of computer. Data is input into the computer directly by a machine or device. Examples of input devices include keyboards, mouse, scanners, digital.
These electronic components are basic electronic parts packaged in a discrete form with two or. List of input devices, output devices and both input output devices related to computer. In addition, you use output devices to receive information that you can read, see or hear, they make use of. Without any input devices, a computer would only be a display device and not. Generally input devices are manual or direct data entry devices. Computer component and their functions identifying specialized inputoutput devices. Inputoutput devices constitute a major part of a computer system. It is mainly used in computer aided designing cad and playing computer games.
The functions assigned to these keys differ from one software package to another. This data is given to the computer by using particular devices named computer input devices. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter ii. Light pen light pen is a pointing device which is similar to a pen. Mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs. The computer transmits data to the drive, where it is saved and can be later accessed. Input devices a keyboard it is a text base input device that allows the user to input alphabets, numbers and other characters. In most cases, we speak of input devices for devices that have a connection to the central unit of a computer, that is, the cpu. The monitor is a common output device that comes in our mind. Computer output devices are used to provide information for a user in different forms. Parts of computer and their functions class3 youtube.
Now a day computer is one of the most important field for every examinations. Still and video scanners graphics tablets bar code reader radio frequency idrfid touch screen. The system unit focuses on processing, whereas a variety of peripheral devices facilitate input, output, storage, and communication. An input device is any hardware device that sends data to a computer, allowing you to interact with and control it.
It shows the display of the input you give using a keyboard or mouse. Keyboard a keyboard consists of a series of keys that can be pressed to input commands or letters. What are 10 input devices and their functions answers. The functions of input and output device are mainly to help in communication. Buses are used to transfer bits from input devices to memory, from memory to the processor, from the processor to memory, and from memory to outputstorage devices. The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing some additional functions. Computer education provides tutorial on what is an example of an input device and types of input devices which also covers input devices list 10 examples of input devices list of input devices. Due to their large size, low light output and the frequent need to. An input device can be defined as an electromechanical devices that allows the user to feed information or data into the computer for analysis, storage and give command to the computer.
Input devices a keyboard it is a text base input device that allows the user to input. Input devices input is any data or instructions entered into the memory of a computer. There are twelve function keys labeled f1, f2, f3 f12. Mouse a mouse consists of a ball or laser that tracks the movement of the device. Input devices input devices any peripheral piece of computer hardware equipment used to provide data and control signals to a computer.
Input devices accept data and instructions from the user. A study of computer manual input devices and their associated human engineering characteristics was conducted for the purpose of developinq a scheme for relating these devices to operator performance characteristics, computer characteristics and s, stem requirements. In the computer industry, the terms computer and cpu are often. The input devices are those that fulfill the function of entering or providing data and control signals to the central processing unit of a system. Also, the monitor is connected through vga cable to the cpu. Electronic components function depends on type and need of the circuit. The function of joystick is similar to that of a mouse. Amazing 20 examples output devices and their functions. The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing additional functions. Some commonly used inputoutput devices are listed in table below. Conventional commercially available input devices such as. An input device is any hardware component that allows a user to enter data and instructions into a computer. These are used to write documents but can be used to navigate user interfaces in lieu of a mouse. Barcode scanner, magnetic stripe reader, omr reader, ocr.
Direct input devices do not require much human interaction to get their data into a computer system. Digitizer can convert a signal from the television or camera into a series of numbers that could be stored in a computer. Different manual input devices give rise to different. This includes the function keys,control keys, arrow keys, caps lock key, and so on. A computer or laptop keyboard is kind of hardware device that you can use to type data in a computer system. However, there are dozens of other devices that can also be used to input data into the computer. Pdf computer input and output devices ingamule siraji. These input output devices are also known as peripherals since they enclose the cpu and memory of a computer system.
What is input device types of input devices computer. In computing, an input device is a piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Keyboard is the most common and very popular input device which helps to input data to the computer. The data can be in the form of text, graphics, sound, and text. Following are few of the important input devices which are used in a computer. In this unit we shall discuss something about inputoutput devices and their functions. Users can select the input that meets their organization criteria in order to enter data. Find 10 most common output devices of computer and their functions. Assignment of input and output devices 32,053 views. Input output devices dont only produce output, but can also be used as storage and input devices. Peripheral devices that perform input output functions between the operator and the computer are discussed in lesson 3, and lesson 4 covers the auxiliary storage devices that hold information for the cen. Identifying specialized input devices game controllers digital cameras.
Pointing systems computer users frequently find it easier to point to something on a screen or at an item of text or graphical material they are entering into the computer, a number of devices are available to assist in fulfilling this need. Input is any data or instructions entered into the memory of a computer. An input device is a piece of computer hardware equipment used to provide data. A mouse is a small object you can roll along a hard, flat surface.
These are used to write documents but can be used to navigate user interfaces in lieu of a mouse 2. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system. In this way we get results by the pc output devices. New input devices and media can help redress this imbalance by obtaining data from the user conveniently and. The picture shows a logitech trackball mouse, which is an example of an input device the most commonly used or primary input devices on a computer are the keyboard and mouse. Computer hardware is organized according to these basic functions. This is unlike input devices that lets you send data out of the system. Input output devices and interaction techniques ken hinckley, microsoft research robert j. The input devices are the hardware that is used to transfer transfers input to the computer. Devices input and output unit 4 input output devices. A cpu is responsible for processing the instructions and the devices are responsible in outputting the processed information in different formats depending on the type of output device. Jacob, tufts university colin ware, university of new hampshire introduction the computing literature often draws a sharp distinction between input and output. A central processing unit cpu, also referred to as a central processor unit, is the hardware within a computer that carries out the instructions of a computer program by performing the basic arithmetical, logical, and input output operations of the system. Input devices as well as output devices are a neccessity in order to.
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