Complex sentence: The terms "online" and "offline" have specific meanings in regard to computer technology and telecommunications in which "online" indicates a state of connectivity, while "offline" indicates a disconnected state.
Split into simpler sentences: The terms "online" and "offline" have specific meanings in regard to computer technology and telecommunications. Though common vernacular refers specifically to an Internet connection, the general definition of "online" simply indicates a state of connectivity, while "offline" indicates a disconnected state.