From NCSA Health Sciences Group
In the world of retail there can not be many more revolutionary products compared to the handheld barcode scanner. The beauty of this kind of scanner is it is so simple to use. Just point it on the barcode, press the trigger as well as the job is done. And since it is worked manually anyone using one of these pieces of equipment is not as likely to make a mistake.
Strictly speaking handheld barcode scanners are connected to the computer by a cable. There are handhelds which are connected up wirelessly. There is no cable restricting how long the scanner can be used from the computer; the only real limit is the array of the wireless signal. They may be small enough to fit in to a pocket. The purists do not class these scanners as handheld, instead they use the term "wireless barcode scanner." However these scanners do offer exactly the same ease of use as the handheld variety.
cash register - The handheld scanners that a lot of people will be using will utilise a couple of scanning technologies, the laser as well as the LED. Lasers remain the most popular, despite the introduction of LED scanning technology during the last few years.
With laser scanning technology the scanning unit includes a laser diode. The laser diode generates a dot which becomes the beam of light by being projected in to a vibrating mirror. The beam of light is then scanned along the barcode.
LED is a newer type of scanning technology as well as the handheld barcode scanners incorporating it tend to be more durable. Also LED is a lot more versatile in the type of barcode it can read - you can use it to scan horizontal barcode symbols as well as the more typical vertical ones. The sensor then sees the reflected light and the data is converted into ASCII text.
point of sale system - One decision that anyone thinking of using a handheld unit in their business is whether to stick with the conventional 1D type of scanner or even the newer 2D units. The 2D scanners are becoming more popular as they provide more, especially needless to say the ability to read the new 2D barcodes for example data matrix. These barcodes can hold much more information compared to 1D type can which obviously means they are attractive to use. However, the 2D handheld scanners do cost much more than the 1D units. Obviously in case your business can manage using the capacity restrictions from the 1D barcode then there is no real must upgrade. Of course the converse can often happen and many more businesses are now looking at the higher specification units.
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