A bar code scanner is an input device. While it does contain a laser, the laser is used to read the data, not to communicate anything to the user. The bar code scanner reads the UPC codes into the cash register or point of sale system.
A bar code scanner is an input device. While it does contain a laser, the laser is used to read the data, not to communicate anything to the user. The bar code scanner reads the UPC codes into the cash register or point of sale system.
A bar code reader is an input Device. Although they sometimes output a visible light, the purpose is to gather data from a printed code and input that data into your system (computer, Point of Sale, etc.)
UPC (United Product Code) scanner, or simply bar code scanner
No, a bar code scanner is not a storage device. The scanner is a peripheral device used to read the bar code on a product, and an associated computer can use that information to identify that product and provide pricing and other information about it. That identifying information and other data is held on a storage device associated with the computer.
These are all example's of Data Input device's - as opposed to Data Output Device's like Monitor's, Projector's, Printer's etc.
Both terms apply to the same device. There isn't a difference.
A bar code printer or any kind of printer is an output device.
Because it has no facility to output information directly. Both types of scanner (document or bar-code) work in a similar way. They use a laser beam to scan information (either from a page or a bar-code) - and turn that information into a digital format. The computer (depending on the program) converts the scanned information either into a replica of the original (document) or compares the bar-code against its database. Neither device is designed to outpuit information directly to the user - therefore theey are both input devices only.
Bar-code scanner & Credit/debit card reader.
Input device
An input device is anything that a person can use to add information to a computer so it can work. A CD, web camera, mouse, keyboard, digital camera, drawing tablet, microphone, scanner, disk drive, joystick, ATM, and bar code scanners can all be used as input devices.