Final answer:
The subject of this question is Computers and Technology. It is about a variable speed joystick controller with an LCD/LED display or keyboard that can control the speed dome for pan/tilt/zoom and select any camera on any monitor. This topic falls under the field of electronics and software development.
Step-by-step explanation:
The subject of this question is Computers and Technology. The question is asking about a variable speed joystick controller with an LCD/LED display or keyboard that can control the speed dome for pan/tilt/zoom and select any camera on any monitor. This topic falls under the field of electronics and software development, as it involves the design and programming of a controller for robotics or surveillance systems.
A joystick is an input device consisting of a stick that pivots on a base and reports its angle and direction to the device it is controlling. It detects the direction of the stick by use of an electronic switch, Hall Effect, strain gauge or potentiometers.