There are much electronic devices that acts as source dataentry such as scanner, cameras, barcode reader, electronic chips, and audio. Would you like to know about pointing devices, different types of pointing devices, their functions and also how these devices can work. Fax machine know more about all in detail, click here input output devices. The function of joystick is similar to that of a mouse. The usermay input a series ofnumbers, letters and symbols usingthe keyboard.
Input devices are the way were able to get data into a computer. They display the computer environment on screen, and allow a user to manipulate and interface with it just by touching the screen. Input output device based mcq mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs. An input device is any hardware component that allows a user to enter data and instructions into a computer. In a computer architecture, the combination of cpu and main memory is the brain of the computer, and it is managed by the input and output resources. Input is any data or instructions entered into the memory of a computer. Input, processing, storage, output and communication devices. Different types of computer operating systems and os functions.
Input devices accept data and instructions from the user. An input device used to control a pointer on the screen is called a pointing device. Keyboard when exploring the functions of input devices, looking at the keyboard is important as it is the device people use most to input data. Inputoutput devices constitute a major part of a computer system. Functions of the major hardware components of a computer. What are different types of input devices with examples. Computer inputoutput ports and interfaces 1 terms and abbreviations. Input devices will feed data into a system while output devices will take processed data from systems.
The ac input voltage 120v 60hz is rectified to dc voltage immediately. The computer transmits data to the drive, where it is saved and can be later accessed. In this unit we shall discuss something about inputoutput devices and their functions. Here i am going to share you about list of basic input devices, output devices and both input output devices. Some commonly used inputoutput devices are listed in table below. Mcqs on input and output devices gk objective question answer exam question answer for competitive exam of govt jobs. A computer or laptop keyboard is kind of hardware device that you can use to type data in a computer system. Amazing 20 examples output devices and their functions. Input devices are used to enter data and instructions into computer memory from external world. These devices are also called dual purpose devices or both input output devices. Parts of computer and their functions class3 youtube.
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. Input devices a keyboard it is a text base input device that allows the user to input alphabets, numbers and other characters. Input output devices dont only produce output, but can also be used as storage and input devices. A computer monitor is a visual screen display unit and it is the most common example of an output device.
Examples of io devices are cd drives, dvd drives, usb drives, hard disk. Mcq input and output device of computer with answers pdf. Computer hardware is organized according to these basic functions. A track ball comes in various shapes like a ball, a button and a square. Input device a pressure sensitive pad that moves a pointer on the computer screen by capturing the motion of a finger or fingers across its surface. Lets read the topic and you will find out all the answers. 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 we have. The functions of input and output device are mainly to help in communication. The system unit focuses on processing, whereas a variety of peripheral devices facilitate input, output, storage, and communication. An input device is any peripheral piece of computer hardware equipment used to provide data to the computer. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter ii.
Since the whole device is not moved, a track ball requires less space than a mouse. Keyboardthe computer keyboards primaryfunction is to allow the user to inputcommands that instruct thecomputer on what to do. It shows the display of the input you give using a keyboard or mouse. As computer users, were the most familiar with the parts of the computer that we interact with daily. Devices input and output unit 4 input output devices. Generally input devices are manual or direct data entry devices.
It is mainly used in computer aided designing cad and playing computer games. So dear reader i have provided top expected gk questions from input and output device of computer. What are dual devices or both input output devices. There are a number of tasks for you to carry out, be sure to read the information fully whilst completing the tasks. Job interview questions on basic computer technology and internet part2. When we talk about output devices, some of the devices in this group can do both the input and the output process. A computer keyboard includes a set of alphabets az, numbers 09, symbols and function keys. The first phase is the input phase, where data is entered into the computer system through input devices. Use the theory notes on the site to help you complete this booklet. List of input devices, output devices and both input. This video of kriti educational videos describes about the parts of computer and their functions. Sort which are the input and output devices of the computer and write their names 6. 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. Worksheet 2 input devices make sure that you are familiar with all of the information detailed in this booklet.
An input device is a peripheral which accepts data and sends it to the cpu. Source dataentry devices is devices that create machinereadable data and feed it directly into the computer without keyboard or mouse. Input devices include the mouse, keyboard, touch screen monitor. Input output devices list with their functions pcguide4u. Runs in userspace fuse configurable behaviors file placement. Input devices are types of peripheral devices that communicate with. Types of computer systems computers are often identified by their size and power.
Input devices input is any data or instructions entered into the memory of a computer. The function of an input device is to control signals and to provide data to an ips information processing system such as a computer. Keyboard, mouse, track ball, track pad, joy stick, touch screen, light pen, scanner, digital. Now a day computer is one of the most important field for every examinations.
What are 10 output devices and their functions answers. The function of an input device is to communicate information to a computer or other sort of information processing equipment. The very first computers only accepted punch cards as input. There are multiple items that are considered to be input devices, such as a keyboard, mouse and microphone. Computer systems are currently built around at least one digital processing device. The display, keyboard, printer and mouse are io devices. Track ball is an input device that is mostly used in notebook or laptop computer, instead of a mouse. There are five main hardware components in a computer system. Data data presented to an input device has to be in the right form for the device, e. 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.
Light pen light pen is a pointing device which is similar to a pen. Computer output devices are used to provide information for a user in different forms. The central processing unit cpu again consists of alu arithmetic logic unit and control unit. Input devices output devices keyboard mouse joystick scanner light pen touch screen monitor lcd printer plotter. The following is a list of the most common input devices which are nowadays found in a computer system. A computer system is a set of integrated devices that input, output, process, and store data and information. The devices that can be used to perform both functions input and output are called dual devices. The set of instruction is presented to the computer in the form of raw data which is entered through input devices such. 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. 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. This is a ball which is half inserted and by moving fingers on ball, pointer can be moved. Input device is a hardware part of the computer that is used to enter data and instructions into computer memory. Dc voltage will be supplied to the switching devices called.
The monitor is a common output device that comes in our mind. Computer scientists had to carefully punch out their instructions and then feed the cards into the computer. Classification of input devices an input device can be classified in a variety of ways including its modality of input, which means whether it is audio, visual or has a mechanical motion. Dc voltage will be supplied to the switching devices called igbt. Also, the monitor is connected through vga cable to the cpu. With the help of a dual purpose device, we can enter data into computer as well as we can output data from the computer to outside world. A scanner is an electronic and input device that allows user to scan any of document, images, etc. Support for extended attributes xattrs support for file attributes chattr. In the example, information was inputted via a mouse and keyboard the keyboard was used to input the flyer text, and the mouse was used to input design for the flyer. Block diagram of computer system the computer system consists of mainly three types that are central processing unit cpu, input devices, and output devices. There are several methods to input data and generically, they are keyboards, mice, audio and video. These devices double as an output and input device. Its a kind of hardware device that you can connect to your desktop computerlaptop by.
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