The invention is a method for objects selection at a location comprising the steps of using a mobile computer having a bar code reader, a display, an audio output device, an audio input device, a tactile input device, text to speech software, a voice recognition software, objects selection applications software, and radio frequency identification (RFID) reader, wherein said mobile computer is adapted for communication between an order systems server and a user and the order systems server is adapted for communication between the mobile computer and at least one external computer system.