A computer or laptop keyboard is kind of hardware device that you can use to type data in a computer system. These electronic components are basic electronic parts packaged in a discrete form with two or. Types of computer systems computers are often identified by their. These are used to write documents but can be used to navigate user interfaces in lieu of a mouse.
The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing additional functions. The functions of input and output device are mainly to help in communication. 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. Now a day computer is one of the most important field for every examinations. It shows the display of the input you give using a keyboard or mouse. Users can select the input that meets their organization criteria in order to enter data. The computer transmits data to the drive, where it is saved and can be later accessed. The function of joystick is similar to that of a mouse. Csca0101 computing basics 24 input devices keyboard shortcut keys. A device that controls the movement of the cursor or pointer on a display screen. 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. In simple terms, input devices bring information into the computer and output devices bring information out of a computer system.
Input devices input devices any peripheral piece of computer hardware equipment used to provide data and control signals to a computer. Due to their large size, low light output and the frequent need to. New input devices and media can help redress this imbalance by obtaining data from the user conveniently and. Jacob, tufts university colin ware, university of new hampshire introduction the computing literature often draws a sharp distinction between input and output. 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. Electronic components function depends on type and need of the circuit. Input output devices list with their functions pcguide4u. What is input device types of input devices computer. Input devices is a way of entering data into the computer in different formats. Light pen light pen is a pointing device which is similar to a pen.
The monitor is a common output device that comes in our mind. An input device is any hardware component that allows a user to enter data and instructions into a computer. Following are few of the important input devices which are used in a computer. Conventional commercially available input devices such as. 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. The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing some additional functions. Input devices accept data and instructions from the user. Examples of io devices are cd drives, dvd drives, usb drives, hard disk drives hdds, and floppy disk drives.
These are used to write documents but can be used to navigate user interfaces in lieu of a mouse 2. An input device is any hardware device that sends data to a computer, allowing you to interact with and control it. A mouse is a small object you can roll along a hard, flat surface. The functions assigned to these keys differ from one software package to another. 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. Computer output devices are used to provide information for a user in different forms. Some commonly used inputoutput devices are listed in table below. 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. Generally input devices are manual or direct data entry devices.
This includes the function keys,control keys, arrow keys, caps lock key, and so on. Without any input devices, a computer would only be a display device and not. Assignment of input and output devices 32,053 views. Identifying specialized input devices game controllers digital cameras. Input devices input is any data or instructions entered into the memory of a computer. Computer component and their functions identifying specialized inputoutput devices. Direct input devices do not require much human interaction to get their data into a computer system. There are twelve function keys labeled f1, f2, f3 f12. Computer inputoutput ports and interfaces 1 terms and abbreviations. Pdf input output storages devices in computers researchgate. 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. Find 10 most common output devices of computer and their functions. The data can be in the form of text, graphics, sound, and text. 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. Digitizer can convert a signal from the television or camera into a series of numbers that could be stored in a computer. Input devices a keyboard it is a text base input device that allows the user to input. In the computer industry, the terms computer and cpu are often. Input output devices dont only produce output, but can also be used as storage and input devices.
This video of kriti educational videos describes about the parts of computer and their functions. It is mainly used in computer aided designing cad and playing computer games. Also, the monitor is connected through vga cable to the cpu. The following is a list of the most common input devices which are nowadays found in a computer system. Input is any data or instructions entered into the memory of a computer.
You use output devices to receive information that you can read, see or hear. Without io devices, a user cannot communicate with the computer. Barcode scanner, magnetic stripe reader, omr reader, ocr. 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. Mcq input and output device of computer with answers pdf. Different manual input devices give rise to different. Still and video scanners graphics tablets bar code reader radio frequency idrfid touch screen.
In this unit we shall discuss something about inputoutput devices and their functions. The computer is able to register the movement of the mouse and translate. 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. The input devices are the hardware that is used to transfer transfers input to the computer. Keyboard a keyboard consists of a series of keys that can be pressed to input commands or letters. Input devices a keyboard it is a text base input device that allows the user to input alphabets, numbers and other characters. This data is given to the computer by using particular devices named computer input devices.
Pdf computer input and output devices ingamule siraji. What are 10 input devices and their functions answers. 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. Amazing 20 examples output devices and their functions. Input devices as well as output devices are a neccessity in order to. List of input devices, output devices and both input output devices related to computer. Parts of computer and their functions class3 youtube. Assignment on input and output devices linkedin slideshare. Input and output devices are required for users to communicate with the computer. Without any input devices, a computer would only be a display device and not allow users to interact with it.
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 devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter ii. Mouse a mouse consists of a ball or laser that tracks the movement of the device. Computer hardware is organized according to these basic functions. This is unlike input devices that lets you send data out of the system. Inputoutput devices constitute a major part of a computer system. They can be used by the computer to create a picture of whatever the camera had been pointed at. Understand how to input data into a handheld computer. Digitizer is an input device which converts analog information into digital form. In addition, you use output devices to receive information that you can read, see or hear, they make use of. The system unit focuses on processing, whereas a variety of peripheral devices facilitate input, output, storage, and communication. However, there are dozens of other devices that can also be used to input data into the computer. Input output devices and interaction techniques ken hinckley, microsoft research robert j. 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.
Keyboard is the most common and very popular input device which helps to input data to the computer. 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. Light pen track ball graphic tablet magnetic ink card readermicr. Mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs. A computer keyboard includes a set of alphabets az, numbers 09, symbols and function keys. An input device is a piece of computer hardware equipment used to provide data.
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