What is an Input Device? - Definition form Hudoong

What is an Input Device? - Definition form Hudoong

In this post you will know what the Input Device is? And who is this? Key - Board, Mouse, Magnetic Ink Character Recognition, Optical Character Reader, Optical Mark Recognition, Scanner, Bar Code Reader, Touch Screen, Joystick, LightPane, and Voice or Voice Input etc.

What is Input Device? What is this?

Friends, today we will know what Computer is Input Device? Friends, very few people will know about Input Device, and in almost all Exams this question is asked, What is Computer that Input Device? So let us know about Computer that Input Device –

Input Device

All the tools used to give data and instructions to computers are called Input Device. Examples: - Key - board, mouse, magnetic ink character recognition, optical character reader, optical mark recording, scanner, bar code reader, touch screen, joystick, lightpane, and voice or sound input.

Input Device's Tools-

Key - Keyboard

Friends - I have already told you about the board, to read - What is the Board? Click on the link: -

Also read: - What Is a Keyboard? - Hudoong

Mouse

Friends, about the mouse, I have already told you in a post, in full detail, what is the mouse? You can read by following the link to know about it –

 Also Read -What is a Mouse? | Mouse usage information

Magnetic Ink Character Recognition

In this device the data being inputted with the help of a human and machine-capable system is written on a normal paper. In order to write letters, a special type of printing font is used. Each letter in this font is made up of vertical streaks. The letter is written with a special ink mixed with a magnetic denominator, when a letter is read, it passes under the reading head of the MICR, which reads the large and small intervals in the form of 1 bits and the form, respectively. This method mainly states that the code number displays the customer account number and the check amount.

Benefits of MICR –

The accuracy of reading MICR is very good.

This process can read both the machines and the humans prepared by the dead.

Data Input speed is very high in MICR.

Loss of MICR -

It takes more time to prepare data for this promotion.

Only the special fonts and special ink is read by the data.

Also read: -

Optical character reader

OCR means optical character reader. There is also a standard set of letters for writing data in OCR, which can be read by humans and machines in a uniform manner. The function of reading data by OCR is done by the light scanning method in which each letter is published from a light source, and its rectangle is read in the OCR and the photo taken on the sensitive sensing plate is read from them. The OCR system can also read handwritten data.

Benefits of OCR –

It is not necessary to generate data again using OCR.

OCR can enter data from a handwritten or typed form.

OCR that damages -

OCR is a very expensive system.

Some special types of fonts are used in OCR.

Optical mark recognition

There is no use of any particular ink nor any special font in the optical mark recognition device, but the first form here is printed on a plain paper by printing all the information that is being inputted. After the form is prepared, the user marks the notice of Input at that time on the form. When all the data is marked then give this form a party inside the OMR. In the optical mark recognition device, data is also used by the light scanning method.

Scanner

Scanner is a tool through which graphic information and original form based information are entered directly. This is called source data automation. Laser technology is used to scan and digitize the first thing through a scanner. Under which any printed instruction is converted into electronic code which can be stored on computer and edited as necessary. The information to be scanned can be anything like handwritten, photo, drawing, etc. Once the scanned and stored in the computer system, the image can be retrieved, can be printed, it can be mixed with any other suggestion.

There are two types of scanners -

Page Scanner - This can scan the information on an entire page simultaneously.

Hand scanner - its width is about 5 inches. Therefore, it is used only to scan small images.

barcode reader

If you have got a chance to buy from a super market or department store, you should have seen that when we come with all the goods to pay on the counter, the computer operator sitting there carries the goods one by one and one of our goods and Keeping a machine on any area of ​​it keeps our luggage again and thus does it with all the accessories. In fact, the machine in his hand is called a bar code reader and with the help of it, he reads the time code on each bag and inputs its value in computer. The bar code is a different thickness that has different lines that represent the code number or value of the goods. The coding method used in the bar code is called Universal Product Code. This process is based on the thickness of the line and the spacing between them. With the help of machines that read these time codes, they are called bar code reader or scanner. These times the code reader is of two sizes - the small size of the picker, by placing the operator on the bar code on the bag, suppresses the button on the top of the scanner, so that the accumulated information in the form of bar code gets accumulated in the computer's memory. The second time the code reader is larger in size, which is permanently positioned at your place. Here, the stuff has to be passed in front of the bar code reader, so that he reads the bar code and stores its notice in the computer's memory.

Touch Screen

Touch screen is a special type of monitor that is sensitive to any type of touch. In 1984, this special screen, developed by Hewlett Packard Company, is used to input data and instructions in limited quantity. The touch screen is made up of a small net of microwave rays. When a user touches any part of the screen to get any information, then that trap breaks at that point and the signal reaches the CPU. Generally it is used in software programs where inputs are available simultaneously on the screen.

Joystick

It is also an Input Device related to Computer which is commonly used to play games on computers. It is a long lever or a rod which is connected to the base with the help of a ball. The direction in which the lever is rotated, the pointer on the screen rotates in that direction.

Light pen

Light pen, like mouse, joystick, etc. is also a pointing Input Device. Light pens are used to select different presentations on the screen and draw pictures on the screen. A light sensitive sensor is placed at the place of the nib at this pen. When the pen is taken near the screen, it feels the light of the nib monitor, and wherever the pen is kept, the signal of the notification sends it to the CPU. It is commonly used to create drawing in AUTO CAD etc. Professorial drawing software. In some programs, the light pen is also used to select the menu and its command.

Sound or sound input

Today, more research is being done to ease the interaction between computer users in the field of computer. After creating various input devices, it is now being noticed that how to make a person understand or understand the language. If possible, the need for using Key Board to press key or to use any other input tool will end the need to input data. Now the user can get the computer input or data input by speaking with the help of a microphone connected to his computer. The sound recognition technique gives the computer instructions to the user by converting sound signals into voice to digital signals. This technique has not yet been fully developed, but still there are some software that users get their audio instruction in voice and their data and the user receives data in that voice. Dragons Dictator is an example of a similar software.

Friends In this Chapter of today we have known that Computer is Input Device and what is it? Share your friends if you like them, so that anyone else can benefit from the information. And if friends do not understand anything, then by commenting in the comment box, I am waiting for your comment.