Write two main types of scanner.

 The scanner  is an input device. It is also known the optical reader. Its work first of all scan the data read and after the reading then enter data into computer. 

Like a bar code reader it read the data using a light beam and than convert it into in digital form. Scanner takes images in Electronic form than store it into computer Memory.

types of scanner

Having a scanner in the organization for record keeping, there are many types of scanners available, you'll need which one of them is your best wish . Flatbed scanners and production scanners is less costly and easy to maintain but take up a huge space. Handheld scanners allow scan any size of item , but produce low quality images. Sheetfed scanner is also which one of them.

There are some types of Scanners are as follow:

Types of Scanner:

• Optical Scanner
• MICR

 

Optical Scanner

Optical are the light sencer are used to read the data from paper. The  data may be written with typing, coded with pencil on the papers in the form of Bar, The optical scanner convert the data into digital form.

There are three types of Optical Scanner are as follow:

• OCR
• OMR
• OBR

OCR

The  Complete name of OCR is Optical Character Reader.The OCR is consist on both software and scanner.

First of all the scanner read the images and than store them into computer  Memory. And than software convert them into the editable form.

 Optical Character Reader is used to read the price tags and utility bills. All the information that are written on price tags and utility bills are in particular form. OCR reads which of them all data and convert all data into digital form.

In last computer work start on digital data.

OMR

OMR stands for the optical Mark Reader. Mostly the OMR is used to read the hand drawn marks such as circle and rectangles. It also used to read the Answer sheets During the examination students fill the circle or rectangles on pre-printed sheet. And than the optical Mark Reader read it convert it into understandable form.

OBR

OBR stands for OPTICAL BAR CODE READER. It is used to read the printed reader and finally convert them into digital form.The most widely system that are used in Barcode is UPC. The UPC is the abbreviation of Universal Product Code. The UPC is consist of a small vertical lines  that are thickness. 

These are consist of Ten digits. Which first five consist of supplier of the products and last five consist of name of the products.This scanner is used to read the bar code.

MAGNETIC INK CHARACTER READER.

MICR stands for Magnetic Ink character Reader. This scanner is the mostly used in bank cheque. The data is written on lower-left side of the bank cheque. 

This is consist on cheque number, account number, user name , father name and address etc. MICR than read all the data with a Magnetic Ink. After reading the data convert into digital form.

Now we discuses in last another scanner are called smart card and inserted card. The data is encoded on the back side of smart card. In encoded data about the card owner like a its name, father name, gender, address, account number and mobile number etc. The example of smart card are ATM card and personal identity card etc. ATM stands for automated teller Machine.

And the other hand, inserted card is an alternative to a smart card. It used the card reader to enter the data or change the data. SIM and memory card are two common examples of inserted card.

Related Topics

• Mainframe Operating system
• Procedural language

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