JPL Small-Body Database (current) Calculus of Communicating Systems Chinese script styles Freely redistributable software Two-step flow of communication First-hitting-time model Mobile computing Scheme (mathematics) Security and Intelligence Division Workspace Group Linear optical quantum computing Vector addition Swedish Sign Language Time-division multiplexing The Lesser Key of Solomon CCIR System C The Australian Library Journal Polymorphism (materials science) Massachusetts Green High Performance Computing Center Challenge–response authentication Petit Computer Space-division multiple access