What are the input and output components of computer?
- Keyboard. Keyboard is among the most common and popular input device .
- Mouse. Mouse is a cursor-control device .
- Joystick. Just like the mouse , Joystick is also a pointing device, which is used to move cursor position.
- Light Pen. Light pen is also a pointing device.
- Track Ball.
- Scanner.
- Touch Screen.
- Digitizer.
What are the 10 input devices of computer?
- 10 Examples of Input Devices. Keyboard. …
- Keyboard. Keyboards are the most common type of input device. …
- Mouse. …
- Touchpad. …
- Scanner. …
- Digital Camera. …
- Microphone. …
- Joystick.
Which computer device acts both as input and output?
The devices that act as both input and output devices are called I/O or peripheral devices. e.g. USB Mass storage devices (Flash drive, pen drive, memory card, etc.)
What are devices typically generate computer output?
Output device. For example, the image shows an inkjet printer, an output device that can make a hard copy of any information shown on your monitor, which is another example of an output device.Monitors and printers are two of the most common output devices used with a computer.
What are the primary output devices for a computer?
Output Devices of Computer: Definition & Examples
- When we press a key on the keyboard (input device), it sends a signal to the computer.
- The computer further processes the input and sends the signal to the monitor (output device).
- The monitor then translates the received signals and displays the result (output) on the screen, whichever key we have pressed using the keyboard. ...
What are the components of output device?
Printers and visual displays are the most common type of output device for interfacing to people, but voice is becoming increasingly available.Speakers.Headphones.Screen (Monitor)Printer.Voice output communication aid.Automotive navigation system.Braille embosser.Projector.More items...
What are the components of input?
The input components would consist of digital devices such as, switches, push buttons, pressure mats, float switches, keypads, radio receivers etc. and analogue sensors such as light dependant resistors, thermistors, gas sensors, pressure sensors, etc. The control unit is of course the microcontroller.
What are the 10 input devices?
Computer - Input DevicesKeyboard.Mouse.Joy Stick.Light pen.Track Ball.Scanner.Graphic Tablet.Microphone.More items...
What are 5 computer output devices?
Examples include monitors, printers, speakers, headphones, projectors, GPS devices, optical mark readers, and braille readers.
What are the computer components?
There are five basic components which include:Input Unit.Output Unit.Memory Unit.Control Unit.Arithmetical and Logical Unit.
What are the 4 main components of a computer?
There are four main computer hardware components that this blog post will cover: input devices, processing devices, output devices and memory (storage) devices. Collectively, these hardware components make up the computer system.
What are the 10 examples of output devices?
The various output devices are:Monitor. A computer's principal output device is a monitor, often known as a Visual Display Unit (VDU). ... Printer. Printers are information output devices that allow you to print data on paper. ... Plotter. ... Projector. ... Speakers. ... Headphones. ... Sound Card. ... Video Card.More items...•
What are the 20 input devices of computer?
Answer:keyboard.mouse.scanner.joy stick.track ball.light pen.touch screen.microphone.More items...•
What are the 14 input devices?
Top 14 Input Devices Used in a ComputerInput Device # 1. Punched Cards Input:Input Device # 3. Magnetic Tape:Input Device # 5. Disc Systems (Floppy):Input Device # 6. Winchester Disk:Input Device # 12. Magnetic Ink Character Recognition (MICR):Input Device # 13. CRT and Light Pen:
What are the five input device?
Examples of input devices include keyboards, mouse, scanners, cameras, joysticks, and microphones.
What are 5 input devices and 5 output devices?
Keyboards, mouse, scanners, etc are some of the input devices while printers, monitors, headphones, etc are some of the output devices....Output Devices of ComputerMonitors. ... Printers. ... Speakers. ... Projector. ... Plotter. ... Braille Reader. ... Television. ... Video Card.More items...
What are four input devices?
► Each travel technique uses a different input device and we used a directed search task. ► The four input devices are: mouse, keyboard, joystick, gamepad.
What keys can be seen on a keyboard?
Typing Keys, Numeric Keypad, Function Keys, Control keys, and Special Purpose Keys are available on the keyboard.
What is input to the computer?
Simply one can understand Input is data that a computer takes, on the other hand, the output is data that a computer transfers. Computers only work...
What do OCR and OMR stand for?
OCR stands for Optical Character Reader and OMR stands for Optical Mark Readers.
What kind of device is a speaker?
Speaker is an output device.
What is the importance of an output device?
Computer output devices obtain information from the computer and transmit data that has been processed by the computer to the user. Output devices...
List some of the names of input and output devices?
Input devices: Keyboard, Mouse, JoyStick, Light pen, Track Ball, Scanner, Graphic Tablet, Microphone, Magnetic Ink Card Reader (MICR), Optical Char...
What is the function of input devices?
The main function of input devices is to direct commands and data into computers. Computers then use their CPU to process this data and produce output. For example, a laptop’s keyboard is an input unit that enters numbers and characters. Similarly, even a mouse can be an input unit for entering directions and commands.
What are the components of a computer?
Components of a Computer System. Every computer system has the following three basic components: Input unit. Central processing unit. Output unit. While there are other components as well, these three are primarily responsible for making a computer function.
What is the function of a control unit?
It is responsible for coordinating tasks between all components of a computer system. The control unit collects data from input units and sends it to processing units depending on its nature. Finally, it also further transmits processed data to output units for users.
What does "computer" mean?
Meaning of Computers. Computers, in simple words, are machines that perform a set of functions according to their users’ directions. Going by this definition, several electronic devices, from laptops to calculators, are computers. A computer comprises of some basic elements.
Can a computer function without these elements?
No computer can function in the absence of these elements. Apart from these elements, a computer system comprises of three basic components. These components are responsible for making computers actually function. Let’s take a look at them in detail.
What are the input devices?
The most common input devices are the keyboard, mouse, and touch screen. Portable keyboard, wireless mouse, and iPhone. There are hundreds of other input devices, like microphones to capture sound waves, scanners to capture image data, and virtual reality devices to capture our body movements. Computers also receive input from their environment ...
What can a computer output?
There are many other ways a computer could output data. As long as the output device can interpret a stream of 1s and 0s, it can turn that data into anything - headphones output sound, printers output ink on paper, and projectors output light.
What was the first input for computers?
Input. The very first computers only accepted "punch cards" as input. Computer scientists had to carefully punch out their instructions and then feed the cards into the computer. A piece of card stock with numbers printed in rows and columns, with some numbers punched out.
What does the scancode on a keyboard do?
When you press a key, your keyboard sends a particular "scancode" to the computer. The scancode represents the key that was pressed. The scan code is then interpreted by programs running on the computer (like the keyboard "driver"), and the pressed key information becomes available to the other programs running.
Is a color sensor an output device?
If its main purpose is to let the computer communicate information to the user, then it's an output device. Although the color sensor has some input qualities and some output qualities, I would say its main function is to read colors. The other features are there just to help it with its main function (reading colors).
What is an output device?
A piece of hardware/equipment that presents the result of the entered input, once it is processed, is called an output device. Several output devices display output in various ways such as images, text, hard copies, and audio/video. Following are some of the commonly used output devices used in a computer system:
What is the most basic input device?
The keyboard is the most basic and very commonly used input device which helps to input data to the computer. The layout of the buttons in a normally used keyboard is similar to the traditional typewriter, but there are a few additional keys provided by different manufacturers for performing additional functions.
What is a microphone?
A microphone or mic is a very common input device used to input sound that is then stored in a digital form. Nowadays microphones are used in almost every industry and devices related to sound recording or transmission.
What is the main function of a computer?
The main functioning of a computer system is based on the combined usage of both input and output devices. Utilizing an input device, a user can give directions to the computer to run and the device reverts to the user’s action through an output device. Let’s understand first what is an input unit and output unit.
What is the most common output device used with a computer to listen to the sound?
Speakers. Computer speakers are the most popular output devices used with a computer to listen to the sound. These speakers receive audio as input either in analog or digital form and generate sound as an output.
How many keys does a keyboard have?
Normally available keyboards in the market were of two sizes 84 keys and 101/102 keys, but now keyboards with 104 keys or 108 keys are also possible for Windows and Internet. Following is the description of the buttons on the keyboard:
What is the most commonly used pointing device?
Mouse. It is the most commonly used pointing device. It is a very famous cursor-control device and the earlier versions of it were built over a small palm-size box with a round ball at its base, which tracks the movement of the mouse and feeds digital signals to the CPU when the mouse buttons are pressed.
What is input/output device?
In simple terms, input devices bring information INTO the computer and output devices bring information OUT of a computer system. These input/output devices are also known as peripherals since they surround the CPU and memory of a computer system.
How does a reading device work?
It is also a reading device that reads printed text by scanning it character by character. It first converts them into machine-readable code and saves them in the system memory.
What is a scanner?
Scanner is an input device used for direct data entry from the source document into the computer system. It converts the document image into digital form so that it can be fed into the computer. Capturing information like this reduces the possibility of errors typically experienced during large data entry.
What is a mouse?
The mouse is a small device used to point to a particular place on the screen and select in order to perform one or more actions. It can be used to select menu commands, size windows, start programs etc.
What is a pen like device?
It is mandatory to have a graphic card to use the device. The pen like device that comes with it helps in replicating the exact design on the computer.
How do digital cameras work?
A digital camera takes pictures by converting the light passing through the lens at the front into a digital image .
When was LCD first used?
LCD was introduced in the 1970s and is now applied to display terminals also. Its advantages like low energy consumption, smaller and lighter have paved its way for usage in portable computers (laptops).
What is an input/output device?
An input/output device, often known as an IO device, is any hardware that allows a human operator or other systems to interface with a computer. Input/output devices, as the name implies, are capable of delivering data (output) to and receiving data from a computer (input).#N#An input/output (I/O) device is a piece of hardware that can take, output, or process data. It receives data as input and provides it to a computer, as well as sends computer data to storage media as a storage output.
What is an I/O device?
An input/output (I/O) device is a piece of hardware that can take, output, or process data. It receives data as input and provides it to a computer, as well as sends computer data to storage media as a storage output. There are many IO Devices available, some of them are:
What is scanner on a computer?
A scanner is an input device that functions similarly to a photocopier. It’s employed when there’s information on paper that needs to be transferred to the computer’s hard disc for subsequent manipulation. Scanner collects images from the source and converts them to a digital format that may be saved on a disc.
What is a joystick?
A joystick is a pointing device that is used to move the cursor on a computer screen. A spherical ball is attached to both the bottom and top ends of the stick. In a socket, the lower spherical ball slides. You can move the joystick in all four directions. The joystick’s function is comparable to that of a mouse.
How many keys does a keyboard have?
Generally, keyboards come in two sizes: 84 keys or 101/102 keys, but currently keyboards with 104 keys or 108 keys are also available for Windows and the Internet.
What is a bar code reader?
A bar code reader is a device that reads data that is bar-coded (data that is represented by light and dark lines). Bar-coded data is commonly used to mark things, number books, and so on. It could be a handheld scanner or part of a stationary scanner.
What is a monitor?
Monitor. Monitors, also known as Visual Display Units (VDUs), are a computer’s primary output device. It creates images by arranging small dots, known as pixels, in a rectangular pattern. The amount of pixels determines the image’s sharpness.
What is input device?
Input devices are those devices that are used to input the program and data in the computer system are known as input devices. In simple words, An input device sends information to the computer system for the purpose of processing. For example, you can type in data by using a keyboard, or you can input data in picture form by using a scanner on a computer system.
What is the most common input device used for entering the data and information into the computer system?
This is the most common input device used for entering the data and information into the computer system. A keyboard is the primary device for inputting the input text which are given in a keyboard in alphabetical and numeric keys.
What is the purpose of a mouse?
It is used to input the data and information into the computer by pointing on the screen of the monitor
What is a scanner?
A scanner is an electronic device which is used for scanning the printed documents, images etc. This device transform the scanned document into the digital file format. The scanner is mostly used for the purpose of high resolution and color of the Digital scanned document.
What is a projector?
A projector is an optical device that takes the image data from the computer system and reproduce the image onto another surface like walls, White screen and large surface area etc. This is mostly used in the cinema hall to provide us a better experience of watching.
What is a printer?
This is an output device that is used for producing output on paper. A printer can do print both text and image. In the printer, all the data are sent from the computer to the printer, then the printer print the data which I send through the computer.
What is a monitor?
Monitor is one of the most popular output devices in a computer system. The main work of the monitor is to display the information to the user. It is also known as a video display terminal (VDT) or a video display unit (VDU).