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