What is an input device? Input device Full details in English?

You all know what is an input device is (what is an input device in English), but for whom this word is completely new, you will know. Here we will talk about the external parts of the computer. I tell you that the computer has some parts, with which we can give and remove data.


In this digital age, everyone uses laptops and desktops and we can do nothing but laptops and desktops. You must know that many devices have been used on laptops and desktops. With these devices, you can operate and control the computer. One of those names is the input device, which makes our job easier. So today in this post we will know in detail what is input devices.

What is Input Device - What is Input Device in English

An input device is essentially a piece of hardware that sends data to a computer. Most input devices either interact with the computer or are controlled in some way. The most common input devices are the mouse and keyboard, but there are many others.


The main difference between an input device and an output device is that the former sends data to the computer, while the latter receives data from the computer. Input and output devices that provide a computer with additional functionality are also called peripherals or accessories.
Keyboards and mouse are the most common or most used devices on the computer.

Why is an input device necessary for a computer?

Input devices are important because they allow you to communicate with the computer and add new information.

For example, if a computer does not have an input device, it will work automatically, but its settings, bug fixes, or other user experiences cannot be modified.

If you want to add new data to the computer (such as a command, document, picture, etc.) you will not be able to do so without an input device.

What are computer input devices and their functions?

In the context of computing, an input device is any hardware device used to send data to a computer that allows us to interact with it.

It has the ability to convert raw data into a format or language, which is readable on the computer and finally delivers the translated data to the Central Processing Unit (CPU) for further processing.

Input devices are classified on the basis of their input modes such as keyboard devices, point and draw devices, speech, and recognition devices.

What comes in Input Device

• Keyboard
• Mouse
• Joy Stick
• Light pen
• Graphic Tablet
• touch screen
• Microphone
• Scanner
• Magnetic Ink Character Reader(MICR)
• Optical Character Reader(OCR)
• Bar Code Reader
• webcam

We will briefly understand each of the listed input devices:-

Types Of Input Devices in English

The 12 best examples of computer input devices are as follows:-

Keyboard

It is the most commonly used input device to enter data into the computer using keys. A keyboard can be connected to a computer via USB (wired) or Bluetooth (wireless).

As there are no rules to define the number of keys, but the keyboards of major companies available in the market have 104 keys which include alphabetic characters, numbers, arrows, and a set of function keys.

This difference also lies in its design and construction as some have mechanical keys while some use membrane keys.

Laptop keyboards are smaller and lighter than desktop keyboards because the latter is more compact than the former.

Smartphones and tablets come with an inbuilt visual keyboard in their screens to enter data and commands.

In modern times most keyboards have a QWERTY layout. Earlier punch cards and paper tapes were used to transfer data to computers.

Mouse

It is the simplest handheld device that is used to move the cursor or pointer on the screen.

Earlier mouse had a rollerball integrated under the device for movement sensor, but the modern mouse comes with optical technology (laser) which controls the movement of cursor by a visible or invisible light beam.

The mouse is generally used on a flat surface and has two buttons - right and left and a scroll wheel in the center.

The left button is used to select or move items while the right button is to show the menu. The scroll wheel is used to move documents and web pages up and down.

Like keyboards, mice also have wired or wireless connectivity. Laptop computers come with a touchpad that acts as a substitute for the mouse and in smartphones and tablets, the user's finger acts as the mouse.

A trackball mouse is a ball input mechanism that can be easily rolled with the fingers to move the cursor or pointer on the screen. This is ideal where desk space is a constraint.

Joystick

It is a pointing device just like a mouse. There is a spherical ball at its upper and lower ends. The lower ball helps in its smooth movement.

The movement of the joystick controls the cursor or a pointer on the screen. It can move in all four directions and enables the user to control the cursor movement with ease.

Therefore it is mainly used for game playing or computer-aided design.

There are different types of joystick such as displacement joystick, finger-operated joysticks, isometric joystick, hand-operated joystick, etc.

Light Pen

The light pen is also a pointing device that looks like a pen. It is a light-sensitive device used to draw or write on the screen.

It consists of a photocell and an optical system placed inside a small tube. As the tip of the pen moves across the screen, the pen's photocell sensing element detects the screen location and sends the corresponding signal to the CPU.

Graphic Tablet

A graphic tablet, also known as a digitizer, is an input device that is flat and comes with a pen or stylus.

It converts hand-drawn work into a digital image. The user can draw on a flat surface like a pencil with the help of a stylus and the drawing appears on the computer screen.

They can also capture the user's signature and convert it into a digital image. Thus it allows the conversion of drawings or text into a format suitable for computer processing.

Touch screen

It is widely used nowadays in portable devices such as smartphones, palmtops, tablets and laptops to interact with computers with the help of their fingers or stylus.

As the name suggests, it allows users to select, swipe, drag, tap, and many other options by simply touching them.

In addition, it is also used for other areas, medical fields, kiosks, ATMs, room automation, multiple devices such as cameras, car GPS, etc., to enable smooth, rapid, or accurate interaction as appropriate by the user. display content.

There are two main types of touch screens - resistive and capacitive touch screens.

Microphone

It is an input device to transfer sound to the computer. Analog sound waves are converted into electric signals and further converted into digital data and saved on the computer.

Microphones are used to add sound to presentation, gaming, chatting, voice recognition, etc.

Different types of microphones are dynamic microphones, condenser microphones, ribbon microphones, etc.

Scanner

A scanner is an input device that reads an image or character from a hard copy document and converts it into a digital file (PDF).

Optical character recognition techniques are used in scanners to convert images into digital files.

Digital images can be saved, edited, printed, and shared via email.

There are different types of scanners available in the market like flatbed scanners, handheld scanners, sheet-fed scanners, drum scanners, photo scanners, etc.

Magnetic Ink Character Reader (MICR)

It is a device that can recognize characters or details on documents printed with a special magnetic ink.

This device is mainly used in banks only for the reason that it can carry out a large number of checks within minutes with accuracy and tamper practically.

Optical Character Reader (OCR)

It is a technology that is able to read handwritten or printed text on documents and convert them into digitized text or electronic files (PDFs).

OCR copies the details using a scanner and the inbuilt software converts the document into a two-color black and white bitmap version.

It separates dark areas like characters and light areas as backgrounds.

Barcode Reader (BR)

It is an automated input device that uses visible red light to scan or 'read' the barcode.

The reflected light is translated into an analog signal which is decoded by the computer to identify the product details from the database.

webcam

A webcam is a hardware input device that is connected to a computer by either USB or inbuilt (in laptops) and is capable of taking a still picture or motion video of the user or an object in front of him.

Photos taken are of compact digital type that can be uploaded or used on the Internet.

Conclusion:

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