Command queue

In computer science, a command queue is a queue for enabling the delay of command execution, either in order of priority, on a first-in first-out basis, or in any order that serves the current purpose. Instead of waiting each command to be executed before sending the next one, the program just puts all the commands in the queue and goes on doing other things while the queue is processed by the executor component (e.g. hard drive).

This delegation not only frees the program from handling the queue, but also allows a more optimized execution in some situations. For instance, when handling multiple requests from several users, a network server's hard drive reorder all the requests in its queue to minimize the mechanical movement. It's like an elevator, that instead of serving the users in the order of solicitation serves them in order of floors.

Examples
gollark: (which might be your velocity, depending on how bad™ physics is)
gollark: You basically just base your launch power/direction on your offset from the height you want and the derivative of that offset.
gollark: Read the Wikipedia page. It's probably more helpful than me.
gollark: A PID controller without the I.
gollark: You can fly at constant height with a PD controller and active feedback from GPS.

See also

References


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