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Blinkenlights on the NSA's FROSTBURG supercomputer from the 1990s Typical LED pattern of a Thinking Machines CM-5. The Connection Machine, a 65 536-processor parallel computer designed in the mid-1980s, was a black cube with one side covered with a grid of red blinkenlights; the sales demo had them evolving Conway's Game of Life patterns.
The five-second click count period begins upon receipt of the first squelch break and the control sequence will respond to the click counts from three, five, seven and stop. As an example, cycling the microphone button rapidly 15 times in five seconds will command "three, five, seven".
A PLC is an industrial microprocessor-based controller with programmable memory used to store program instructions and various functions. [21] It consists of: A processor unit (CPU) which interprets inputs, executes the control program stored in memory and sends output signals, A power supply unit which converts AC voltage to DC,
Once programmed, an EPROM can be erased by exposing it to strong ultraviolet (UV) light source (such as from a mercury-vapor lamp). EPROMs are easily recognizable by the transparent fused quartz (or on later models' resin) window on the top of the package, through which the silicon chip is visible, and which permits exposure to ultraviolet ...
Click (formerly Click Online) is a BBC television programme covering technology news and developments in the world of technology and the Internet, presented by Spencer Kelly and Lara Lewington. It was created by then-BBC presenter Stephen Cole .
In 1998 the ESTA began a revision process to develop the standard as an ANSI standard. The resulting revised standard, known officially as "Entertainment Technology—USITT DMX512-A—Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories", was approved by the American National Standards Institute (ANSI) in November 2004.
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Lighting control systems serve to provide the right amount of light where and when it is needed. [ 1 ] Lighting control systems are employed to maximize the energy savings from the lighting system, satisfy building codes , or comply with green building and energy conservation programs.
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