Bar code scanners are designed to read imprinted bar / matrix code symbologies. Bar code scanners can be slot card scanners, fixed mount scanners, or hand-held scanners.
Computers are programmable electronic devices that accept data, execute prerecorded instructions, perform mathematical and logical operations, and output results.
Kiosks and point of sale (POS) systems are used for sale processing and inventory tracking. Examples include electronic cash registers, computerized check-out systems and self-serve kiosks.
