Voyager 1, which had completed its primary mission and was leaving the Solar System, was commanded by NASA to turn its camera around and take one last photograph of Earth across a great expanse of space, at the request of astronomer and author Carl Sagan.
The mildly socialistic phrase that preceded it was central planning, and the phrase that took it all the way to the Soviet system was command economy, the opposite of market economy.
To verify the effectiveness of the proposed control system design, the robot was commanded to track a circle of 0.8 m radius within 30 s, i.e., ({x_d}(t) = 0.8cos (frac{{pi t}}{{15}})) m; ({x_d}(t) = 0.8sin left( frac{{pi t}}{{15}}right)) m.
The sound systems can be commanding.
The chief failing of today's energy system is its Stalinist, command-and-control architecture, conceived when power flowed only from giant plants to distant consumers.
(Because the system is programmable, Bose engineers could command the linear motors to extend with enough force to propel the car over a barrier, which is how they performed the curb-hopping stunt in the promotional video). The company hopes to bring the suspension to market in four or five years.
"The command and control system is a mess," he wrote.
The centralized command system is simply unacceptable as a long-term environmental protection strategy for a large and diverse nation committed to the market and decentralized ordering.
Android's voice-command system is considered one of its chief advantages over the iPhone, but a Siri-derived personal assistant would add more voice functionality, eliminating Android's advantage.
Not only do most experts agree that such a formal command system is critical, but the federal government has said it will withhold tens of millions of dollars next year in domestic security money if no system is in place by October.
