ch data are encoded in a pattern of tiny pits burned into the surface with a laser, to be read by a device that reflects a laser beam off the pitted surface, then decoded by a microprocessor into digital signals. [Computer and Information Sciences] 
open architecture 
n., A social system that has an unequivocal collective identity, and exact roster of members, a program of activity, and procedures for replacing members. [Government] 
open-standard products and formats 
n., In the paper environment, a file t