USB bar code scanners from the word USB is a barcode scanner created so that it could be connected to a computer via USB port.
Electronic equipment that are connected by cable to CPU of a computer would most likely need a device driver to install hardwares such as USB bar code scanners. There are common problems reported about the use of such products. Some would even have conflicts with the keyboard on a Mac computer.
There are also compatibility issues with USB bar code scanners because some of them do not match with a CPUs hardware and applications especially a computer's operating system. When you buy a USB bar code scanner make sure to check on which operating system it can be matched with. You can still change some of the settings of your scanner even if it is a plug and play. You can change various settings like changing its audio and visual settings.
There are also various types of USB bar code scanners such as USB bar code scanners with stand, USB 1D Bar code scanner, USB 2D bar code scanner, USB long range scanner, USB bar code pen scanner and USB bluetooth bar code scanner.
If you are to buy a scanner, be sure to take note of a few tips on purchasing a bar code scanner. There are bar code scanners that are categorized as contact scanners which mean that the scanners has to be in contact with the object so that the scanner could effectively scan the barcode correctly. Although, there are laser scanners that could scan bar codes of up to three feet.
There are some companies that claim that their scanners can work on all types of computers but some fail to work on some operating system. It is important to do a little more research to know more about a scanner. Go to online stores like Amazon and make sure to check on customer's reviews.
There are also some omni-directional scanners which are very good since these types of scanners can scan bar code in different directions.
Portable scanners are also very important so that it would be easier to use them most especially for hand-held scanners.
Last but not least, there are scanners that could last for a few months only so be sure to buy a very durable USB bar code scanners.