A Range Of Barcode Readers.
A barcode scanner is also known as a barcode reader. It is an electronic machine that is used in reading codes that are not visual to identify a commodity. A barcode is a number that can only be read electronically so that it can reveal the identity of a product. The barcode reader has a light source which has a sensor and also has a lens that is responsible for interpreting visual impulses into electronic ones. This device has a decoder circuitry that analyzes the code image provided by the sensor and eventually sends that code's content to the scanner output port. most of this equipment are in supermarkets and are used to recognize goods and also determine their charges.
There are several types of these devices, and therefore you can only distinguish using their design. The first example is a handheld reader that has a holder and a starting button that is used to switch the light source on and off when passing it through the commodity. The another example is a pen scanner that is similar to a pen but can be swiped through a barcode. Stationery scanner is a gadget that is table-mounted and therefore the code is either passed under or beside it. This is the device that is mostly found in supermarkets.
Fixed-position reader is a gadget that is found in industries, and it is used when the goods are being processed. In most cases, this gadget, is passed over the parcels so as to identify the commodities that are inside before taking then in a shipping place. Fixed-position reader can also have an application that has holographic reader and also has a weigh that determines the weight of the product that is packed. The systems can be found in companies, and they make sure that there is effective shipping and good supervision of the commodities.
Another the gadget is a PDA that has an inbuilt barcode reader. An automatic scanner is also another type of a barcode reader, and it is found in a back office where it scans coded documents at a very high speed. A cordless reader is a barcode reader that has a battery fixed to it, and it is attached to a computer where it sends the information.
The barcode scanners are differentiated with the technology, and hence some are more developed than others. A pen-type scanner reader has a light source and a photodiode that are placed beside each other at the end of a pen. You hold the pen and go through the system using the same speed. The photo-diode forms a waveform that determines the width of the bar and the space between the systems.
The laser scanner is similar to a pen type scanner since it utilizes a beam of light. It also make use of a rotating mirror to read the source of light across the bar-code.Source: http://urbangeekz.com/2016/06/tech-retail-companies-adopt-sooner-rather-later/