The following is a list of the most common input devices which are nowadays found in a computer system. 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. You can use input devices to enter information and issue commands. 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. Input devices keyboard one of the primary input devices used with a computer. Processing the central processing unit cpu is the main chip in a computer. The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing additional functions. Keyboards allow a computer user to input letters, numbers, and other symbols into a computer uses an arrangement of buttons or keys. The size of a monitor is measured in inches diagonally across the screen.
Devices input and output unit 4 input output devices. Some commonly used inputoutput devices are listed in table below. The keyboard the computer keyboard offers a range of special functions that are important to master in order to use a computer best as a tool for information literacy. Following are some of the important input devices which are used in a computer. Analog signals are continuous and can have any number of statesnot just two, as with discrete digital signals. Speaker act output device and microphone act as input. This data is given to the computer by using particular devices named computer input devices. Aug 22, 2018 this quiz will test students knowledge of basic input and output devices. The input device converts the data into the computers own internal.
Understanding barcodes this ebook gives an overview of product codes. Input devices input is any data or instructions entered into the memory of a computer. Input and output devices school of information technology. Five widely used input devices are the keyboard, mouse, microphone,scanner, and web cam. 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. Explain what digital cameras are and how they are used today. This is the unprocessed form of data because it does not specify something clearly. Describe the purposes of scanners and readers and list some types of scanners and readers in use today. You must be using a mouse, keyboard, touchpad, monitor, printers, speaker, scanners, etc. Most chips are not much bigger than one half inch square. Assignment of input and output devices linkedin slideshare. List of input devices, output devices and both input. Input devices a keyboard it is a text base input device that allows the user to. Most devices are only input devices or output devices, as they can.
A temperature transducer is an example of an analog input device. Understand the devices that can be used for audio input. Output devices projector cathode ray tube crt projector in the early days of projectors, crt projectors were commonly used. Chapter 4 input and output oakton community college. Scanner is an input device used for direct data entry from the source document into the computer system. 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. The best and most expensive of these is the fullstroke keyboard. Input devices are the way were able to get data into a computer. 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. Drivers input devices drivers hp mini 2102080nr notebook synaptics touchpad driver 15. A touchpad or trackpad is a kind of input device that has a limited area wherein you can point, scroll, click and swipe. The function keys or f1 through f12 keys are used in programs as shortcut keys. An input device is any hardware component that allows a user to enter data and instructions into a computer. Pdf computer input and output devices ingamule siraji.
Input devices pointing devices keyboard optical input devices audio input device video inpu device. A computer or laptop keyboard is kind of hardware device that you can use to type data in a computer system. A user presses a key which transfers information to a computer. Input devices an input device lets you communicate with a computer. Pdf input output storages devices in computers researchgate. 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. 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. A bay is an opening inside the system unit in which you can install additional equipment. Output device can produce the final product of machine processing into a form usable by humans. Component circuit symbol function of component transistor npn a transistor amplifies current.
Mcq input and output device of computer with answers pdf. Job interview questions on basic computer technology and internet part2. Monitor led, lcd, crt etc printers all types lcd projection panels. External bay allows user to access opening in the bay from outside the system unit. Input and output devices input devices allow us to send information to the computer. Keyboards can have different keys depending on the manufacturer. Microphone is an input device to input sound that is then stored in digital form. Input devices only allow for input of data to a computer and output devices only receive the output of data from another device. Proxy is used to hide the internal network from external world. Examples of input devices include keyboards, mouse, scanners, digital cameras, joysticks, and microphones input devices can be categorized based on. A scanner is an input device that is used to convert a printed picture or document into a digital file which can be accessed on a computer for storage, sending or editing.
Now a day computer is one of the most important field for every examinations. Also, different devices vary in the level of cogni tive and physical demands placed on the user, with more demanding devices requiring coordination of visual. What is the difference between an input and output device. In addition, some special function computers you use will not have a mouse and will only allow you to communicate with the computer through its keyboard. Hereby, providing you input output devices list related to computers and their brief description. The function of an input device is to communicate information to a computer or other sort of information processing equipment. 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. Data and instructions are given to the computer to perform a specific task that is called input. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter ii.
Magnetic ink card readermicr micr input device is generally used in banks because of a large number of cheques to be processed every day. In addition, you use output devices to receive information that you can read, see or hear, they make use of components like sound cards, video cards, usb ports and sometimes wireless or wired. So dear reader i have provided top expected gk questions from input and output device of computer. From which we input the raw data in the computer system for further processing. Input devices are simply the components that a person uses get data into a computer. The cpu processes instructions, performs calculations and manages. This is unlike input devices that lets you send data out of the system. List of input devices, output devices and both input output. Joysticks are often used to control video games, and usually have one or more pushbuttons whose state can also be read by the computer.
Input and output devices bangladesh open university. Types of computer systems computers are often identified by their size and power. There are several methods to input data and generically, they are keyboards, mice, audio and video. Keyboard is the most common and very popular input device which helps to input data to the computer.
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. Nov, 2018 an input device sends information to a computer system for processing, and an output device reproduces or displays the results of that processing. Today we are going to discuss these devices in detail. Drive bay is a regular opening that typically holds disk drives. Input devices it is an electromechanical device that can be used to enter data and instructions to the computer. The system unit focuses on processing, whereas a variety of peripheral devices facilitate input, output, storage, and communication. A touchpad most commonly found on computer laptops computer brand doesnt matter. Parts of a computer class iii, iv and v thinking of. The devices that are used to display the information of the results are known as output devices. Following are few of the important output devices which are used in a computer. The devices which are used to input the data and the programs in the computer are known as input devices. Few of them comes under input devices and some of them comes under output devices. 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. An input device is any hardware component that allows you to enter data and instructions into a computer.
It can be a dedicate device or can be an application software. This quiz will test students knowledge of basic input and output devices. And output devices the main function of an input device is to the main function. Sort which are the input and output devices of the computer and write their names 6. Without io devices, a user cannot communicate with the computer. Five widely used input devices are the keyboard, mouse, microphone,scanner,and web cam. Inputoutput devices constitute a major part of 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. Facsimile fax it has scanner to scan the document and also. For example, you can use a keyboard to type text which will then be stored in the computer. The inputoutput system module 2 3 analog devices in contrast to discrete devices, analog devices are input or output devices that provide or receive analog signals. It forms images from tiny dots, called pixels that are arranged in a rectangular form. Input output devices list with their functions pcguide4u. This is to help you have a basic idea about input and output devices.
The most basic input devices are a mouse and keyboard. Once it is configured, all communication goes through it. Structure in arduino, the standard program entry point main is defined in the core and calls into two functions in a sketch. Input is usually given by clicking the mouse or typing on the keyboard.
An input device is any hardware device that sends data to a computer, allowing you to interact with and control it. The microphone is used for various applications like adding sound to a multimedia presentation or for mixing music. Input devices an input device is anything that is used to get data into the computer. Output devices of computer receive data from the system which it shows to you. It links against avr libc and allows the use of any of its functions. Due to their large size, low light output and the frequent need to converge and align the images projected from each of the three tubes, they are.
Computer hardware is organized according to these basic functions. In this unit we shall discuss something about inputoutput devices and their functions. Keyboards allow a computer user to input letters, numbers, and other symbols into a computer. An input device is a piece of hardware that is used to enter data into a computer.
Next came the teletype, a device with a typewriterlike keyboard on which the user could. A hammer presses the wheel against a ribbon, which in turn makes an ink stain in the shape of the character on the paper. They utilized three tubes, one for each of the primary colors. This tutorial explains the functions of the most common and the essential networking devices such as hub, switch, router, bridge, modem, nic, proxy and gateway in detail with examples. Q1 draw and colour 4 input devices and 4 output device and 4 storage device on a4 size sheet and write their uses. Integrated circuit contains many microscopic pathways capable of carrying electrical current. A cpu is responsible for processing the instructions and the devices are responsible in outputting the processed information in different. Monitors graphic plotter printer monitors monitors, commonly called as visual display unit vdu, are the main output device of a computer.
Following are few of the important input devices which are used in a computer. Check out the list below, separated input output devices. The keyboard looks very similar to the keyboards of electric typewriters, with some additional keys. At the most basic level, a computer is a device consisting of three pieces. In the following image, you can see a keyboard with a relatively standard 104 button layout. Headsets headset consists of speakers and microphone. Input devices are types of peripheral devices that communicate with. You can use a mouse to highlight, select and click the instructions for what you want to happen go from the mouse, into the computer. 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. Here i am going to share you about list of basic input devices, output devices and both inputoutput devices. This section provides rules for keyboards, function keys, pointing devices, and some alternative input devices. The system unit a chip is a small piece of semiconducting material, usually silicon, on which integrated circuits are etched. Computer networking devices explained with function.
Mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs. Light pen track ball graphic tablet magnetic ink card readermicr. In the computer industry, the terms computer and cpu are often. Touchpad allows to use all the features as you do with a computer mouse trackpoint. Since external devices cannot access the internal devices directly, they cannot tamper with the internal devices. A monitored control of equipment such as smoke dampers, alarm devices, and door magnets the input output. While the devices whose main function is to give instructions and data to the computer are called input devices. Computer output devices are used to provide information for a user in different forms. 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.
A computer keyboard includes a set of alphabets az, numbers 09, symbols and function keys. Internal bay is concealed entirely within the system unit. Use of computer input devices by older adults adolescent. However, there are dozens of other devices that can also be used to input data into the computer. A color monitor can display from 16 to over 1 million different colors. 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 inputoutput operations of the system.
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