What are the input devices explain?
In computing, an input device is a piece of equipment used to provide data and control signals to an information processing system, such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, cameras, joysticks, and microphones.
What are the 12 input devices?
Computer - Input DevicesKeyboard.Mouse.Joy Stick.Light pen.Track Ball.Scanner.Graphic Tablet.Microphone.More items...
What is input device PDF?
• Any peripheral (piece of computer hardware. equipment) used to provide data and control signals to a computer. • Allows the user to put data into the computer.
What are the 10 examples of input devices?
Examples of Input DevicesKeyboard. The keyboard is a prominent example of input devices. ... Mouse. A mouse is primarily a pointing device that takes the guided motion by the user as an input. ... Scanner. ... Microphone. ... Camera. ... Magnetic Ink Character Reader (MICR) ... Gamepad. ... Touch Screen.More items...
What are the 20 input device?
Answer:keyboard.mouse.scanner.joy stick.track ball.light pen.touch screen.microphone.More items...•
What are the 20 input device in computer?
The most important computer input devices are keyboard, mouse, light pen, scanner, punch card reader, gamepad, graphics tablet, webcam, MICR, OCR, and OMR.
What is input devices Slideshare?
Following are some of the important input devices which are used in a computer Keyboard Mouse Joy Stick Light pen Track Ball Scanner Microphone Optical Character Reader(OCR) Bar Code Reader VRC(voice recognition chip)
What is the objective of an input device?
Input devices let you to transfer data and user command into the computer system. I/O devices are used to interact with the computer system. For example, you can type in data by using a keyboard, or you can input data in picture form by using a scanner in computer system.
What are the advantages of input devices?
Here are the advantages of input devices:Mouses are good for use with desktop computers.Reliable for putting data on a computer.All users tend to be familiar with using some input devices.They have to have a flat space near to the computer.Sensitive files could be lost if you lose your input device.
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 is input device 10?
The following are the 10 Input Devices 1.Keyboard 2.Mouse 3.Joystick 4.Trackball 5. Digital Camera 6. Scanner 7.Bar code Reader 8.OCR 9.Biometric Sensor 10.Microphone.
What are 3 types of input devices?
Input is data put into a computer for processing. Input devices are broken down into 3 categories: keyboards, pointing devices, and Data-Entry devices.
1. Keyboard
A computer keyboard, often known as a laptop keyboard, is a piece of hardware that allows you to input data into a computer. It is often a plug-and-play gadget. The alphabets (A-Z), numerals (0-9), symbols, and function keys are all found on a computer keyboard. These days, USB and wireless keyboards are widely used.
2. Mouse
The most widely used pointing device is the mouse. It is a well-known cursor-control gadget made out of a tiny palm-sized box with a spherical ball at its base that detects mouse movement and sends suitable signals to the CPU when mouse buttons are pressed.
3. Joystick
A joystick is a pointing device for computers that allows you to move the pointer around the screen. Both the bottom and top ends of the stick are connected to a spherical ball, and the bottom spherical ball slips in a socket. You may move the joystick in all four directions.
4. Scanners
A scanner, like a photocopier, is an input device that is used when paper data has to be transferred to a computer's hard disc and subsequently modified.
5. Light Pen
The light pen's tip has a light-sensitive detector that allows users to pick items on the display screen by pointing to them. The item's position is detected by its light-sensitive tip, which transmits the appropriate signals to the CPU. It can also assist you in drawing on the screen if necessary.
6. Digitizer
A digitizer is a device that transforms analog data into digital data. A digitizer can transform a television or camera feed into a series of numbers stored in a computer. They can be used to create an image of the object at which the camera is pointed by the computer.
7. Microphone
A microphone is a type of sound input device used by computers. It absorbs sound vibrations and transforms them into audio signals or records them on media. The audio impulses are transformed into digital data, which is then saved in the computer. The user can also utilize the Microphone to converse with others.
Keyboard
The most commonly used input device is a keyboard. The data is entered by pressing the set of keys. All keys are labeled. A keyboard with 101 keys is called a QWERTY keyboard.
Mouse
A Mouse is a pointing device and used to position the pointer on the screen. It is a small palm size box. There are two or three depression switches on the top. The movement of the mouse along the x-axis helps in the horizontal movement of the cursor and the movement along the y-axis helps in the vertical movement of the cursor on the screen.
What are input devices?
There are many input devices such as a keyboard, mouse, webcam, microphone and more, which send information to a computer system for processing. An output device, like Monitor, printer and more, displays the result of processing generated by input devices. Input devices only work for giving input of data to the system, and output devices accept the output after processing of data from other devices.
What is input/output device?
An input/output device has the ability to accept data from users or another device (input), as well as forward data to another device (output). Some examples of input/output devices are discussed below:
What is the difference between input and output?
One of the main differences between input and output devices is that input devices are ones that are used to give input to the system by the users, whereas output devices are those, which are used to reproduce the output signals for the user. There are various devices that are used to accept input of data from user or output data generated by ...
What is the purpose of input device?
Its design is more complex. As compared to input devices, its design is less complex. Input device helps the computer to receive instructions from users.
What are the input devices that are used by the users to give input to the computer?
Keyboard and Mouse : These are the input devices that are used by the users to give input to the computer. They send the received input (Data) from users to the system. As these are input devices, they cannot receive or display output (information) from the computer.
What is a keyboard?
For instance, as shown in the above image, a keyboard is an input device, sending an electrical signal to the computer system. A computer system accepts these signals as input, then translates them and produces or displays output to the user on the monitor as text or images. In the lower half of the image, it is also shown that after processing, ...
What is a programmable peripheral interface?
A programmable peripheral interface is a multiport device. The ports may be programmed in a variety of ways as required by the programmer. The device is very useful for interfacing peripheral devices. The term PIA, Peripheral Interface Adapter is also used by some manufacturer.
What is a programmable counter?
A programmable counter/interval timer is used in real time application for timing and counting function such as BCD/binary counting, generation of accurate time delay , generation of square wave of desired frequency, rate generation, hardware/software triggered strobe signal, one shot signal of desired width etc.
How many ports does a microcomputer have?
Its main functions are to interface peripheral devices to the microcomputer. It has three 8-bit port s, namely Port A, Port B and Port C. The port C has been further divided into two 4-bit ports, port C upper and Port C lower. Thus a total of 4-ports are available, two 8-bit ports and two 4-bit ports. Each port can be programmed either as an input ...
How many bits does a 8253 have?
The 8253 is 24-pin IC and operates at 5 V d.c.. It contains three independent 16-bit counters. The programmer can program 8253 to operate in any one of the 6 operating modes. It operates under software control.
What is input stream in Java?
Java application uses an input stream to read data from a source; it may be a file, an array, peripheral device or socket. Let's understand the working of Java OutputStream and InputStream by the figure given below.
What is Java I/O?
Java uses the concept of a stream to make I/O operation fast. The java.io package contains all the classes required for input and output operations. We can perform file handling in Java by Java I/O API.
What is output stream?
OutputStream class is an abstract class. It is the superclass of all classes representing an output stream of bytes. An output stream accepts output bytes and sends them to some sink.
Why is Java called a stream?
It's called a stream because it is like a stream of water that continues to flow. In Java, 3 streams are created for us automatically. All these streams are attached with the console. Let's see the code to print output and an error message to the console. Let's see the code to get input from console.
What is a public void write?
1) public void write (int)throws IOException. is used to write a byte to the current output stream. 2) public void write (byte [])throws IOException. is used to write an array of byte to the current output stream. 3) public void flush ()throws IOException.
What is the most common input device?
Keyboard is the most common and very popular input device which helps to input data to the computer. The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing additional functions.
What is the most popular pointing device?
Mouse is the most popular pointing device. It is a very famous cursor-control device having a small palm size box with a round ball at its base, which senses the movement of the mouse and sends corresponding signals to the CPU when the mouse buttons are pressed.
What are the keys on a keyboard?
The keys on the keyboard are as follows −. S.No. Keys & Description. 1. Typing Keys. These keys include the letter keys (A-Z) and digit keys (09) which generally give the same layout as that of typewriters. 2. Numeric Keypad. It is used to enter the numeric data or cursor movement.
What is a joystick?
Joystick is also a pointing device, which is used to move the cursor position on a monitor screen. It is a stick having a spherical ball at its both lower and upper ends. The lower spherical ball moves in a socket. The joystick can be moved in all four directions.
What is bar coded data?
Bar coded data is generally used in labelling goods, numbering the books, etc. It may be a handheld scanner or may be embedded in a stationary scanner. Bar Code Reader scans a bar code image, converts it into an alphanumeric value, which is then fed to the computer that the bar code reader is connected to.
What is the left and right button on a computer?
Generally, it has two buttons called the left and the right button and a wheel is present between the buttons. A mouse can be used to control the position of the cursor on the screen, but it cannot be used to enter text into the computer.
What are passive components?
Passive components. The passive components in electronics can only store, absorb, or dissipate the received energy in the electric or magnetic field. It includes resistors, capacitors, and inductors. Let's discuss the differences between active and passive components for better understanding.
What is the purpose of electronic components?
The purpose of electronic components includes motion control and information processing. The electronic devices can also be grouped for use in different applications. Let's consider an example of integrated circuits. Integrated circuits comprise small circuits soldered on a single chip.
What are the advantages of electronic devices?
Here, we will discuss the advantages that electronic industry has given to us, which are listed below: 1 Modern Life#N#The use of the electronic devices has improved the way we communicate, work, and play. The devices have improved the way of communication (using mobile phones), work (using personal computers), and play ( using game consoles). 2 Saves time#N#The development of devices, such as smart plug (Alexa), electric cooker, vacuum cleaners, etc., are the sources that save our time. For example, automatic gas stoves, washing machines, electric induction (useful when the gas stove is not available), etc. 3 Increases productivity#N#As a web designer, gamer, or any related profession, the use of big screen helps us to focus on more fine details. Other devices, such as food cutter, chopping, etc. help housemakers to do the work faster rather than doing manually. 4 Enhanced learning#N#Electronic devices, such as personal computers and mobile phones, help people gain information and knowledge through the internet. For example, the kindle e-reader helps us to access hundreds of books. There are also various online courses to enhance knowledge.
How has the use of electronic devices improved our lives?
Modern Life. The use of the electronic devices has improved the way we communicate, work, and play. The devices have improved the way of communication (using mobile phones), work (using personal computers), and play ( using game consoles). Saves time.
What is the combination of engineering, physics, and technology that work together to design and implement various electronic devices intended for
Electronics is the combination of various fields, such as engineering, physics, and technology that work together to design and implement various electronic devices intended for different uses.
What is the most common electronic device?
Mobile phones are the most common electronic device use today. It is also called a cell phone, handphone, etc. It is a small handheld device that can make audio calls and video calls anywhere over the network. The mobile phones offer other features, such as Internet access, text messages, GPS, photography, video games, etc.
Is the number of electronic devices limited?
The types of electronic devices in use are not limited. The number of available electronic devices used today is in large number. Let's discuss some of the most common electronic devices.
What is an output device?
Output Devices. It is an electromechanical device, which accepts data from a computer and translates them into form understand by users. Following are Output Devices:
What is the positive charge on a drum?
The positive electric charge on the drum is stored on just those parts of the drum surface which are exposed to the laser beam create the difference in electric which charges on the exposed drum surface. Step3: The laser exposed parts of the drum attract an ink powder known as toner.
What is a non-impact printer?
Non-Impact Printers: The printers that print the characters without striking against the ribbon and onto the papers are called Non-Impact Printers. These printers print a complete page at a time, therefore, also known as Page Printers. Page Printers are of two types: Laser Printers. Inkjet Printers.
What is input output?
Input-Output Interface is used as an method which helps in transferring of information between the internal storage devices i.e. memory and the external peripheral device . A peripheral device is that which provide input and output for the computer, it is also called Input-Output devices. For Example: A keyboard and mouse provide Input to the computer are called input devices while a monitor and printer that provide output to the computer are called output devices. Just like the external hard-drives, there is also availability of some peripheral devices which are able to provide both input and output.
Why is there a synchronization mechanism between CPU and peripheral devices?
There is also a synchronization mechanism because the data transfer rate of peripheral devices are slow than CPU.