The invention is a system for product selection at a location with a wearable mobile computer with memory and a processor, a bar code reader in communication with the wearable mobile computer, a viewing and input component with a display screen and a tactile input device, an audio output device and audio input device, both in communication with the wearable mobile computer, text-to-speech software, voice recognition software, order filling applications software, a printer, and a radio frequency identification (RFID) reader in communication with the wearable mobile computer, wherein the mobile computer is further adapted to communicate between a user and an order systems server adapted to communicate between the wearable mobile computer and at least one external computer system.