A Range Of Barcode Readers.
A bar-code scanner is also referred to as a bar-code 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. A barcode scanner has a lens and a source of light that turns the optical impulses into electric impulses. The gadget has a decoder that evaluates the image of the barcode and takes the content in the output port. These machines can be found in supermarkets and retail shops, and they identify commodities and also determine their prices.
There are many types of bar-code readers and can only be distinguished by their housing 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. Another type of a barcode scanner is a pen scanner, it is pen shaped and can be swiped. A stationery scanner is a device that fixed on a table, and the barcode is then passed under it or beside it. This is the device that is mostly found in supermarkets.
Fixed-position scanner is a device that is mostly used in factories and it is used in identifying products during manufacture. 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. There is another type that has a holographic scanner and a weigh that checks the weight of the package. These systems are mainly used in factories for excellent shipping and supervision.
A PDA scanner is a PDA that has the barcode reader inbuilt in it. Automatic a barcode reader is a device that is found in offices, and it reads the documents codes 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.
There are those gadgets that are more advanced than others due to the technology. 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.
A laser scanner works as the pen type scanner only that it uses a laser beam as source of light. It also make use of a rotating mirror to read the source of light across the bar-code.