parallel port
USB Port
parallel port
Parallel port
Americium is not used in bar code scanners.
Lutetium is used in PET scanners
If you are looking for a brand-new scanner, uniden.com has scanners listed for sale. If you are looking for a used scanner, sites such as ebay.com and amazon.com may have used scanners listed for sale.
Laser scanners are used in: 3d printers, laser printers, for treatment of long-sighted eyes, laser shows, in microscopes, laser tv, LIDAR which is a technology that can determine the distance of objects. It is also used in barcode scanners.
Dell scanners are used for scanning documents. They are great for both home and office use. They are also used for copying documents, articles and pictures.
Scanners often only have USB ports these days. Older scanners used to have both parallel and USB ports during the transitory period.
Slide scanners have a specific purpose. Slide and Film scanners are generally used to analyze slides of photos, correct, them, and possibly convert them into digital format.
Virus scanners operate by scanning data from documents and programs and looks for certain strings of code in them which are tell-tale signs of a virus. Most virus scanners recognize these strings by connecting to a large information data base. Only known viruses with the certain strings of code in the data base will be detected though.
The use of bar code scanners exploded in the 70s as the technology quickly spread to retail outlets.