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A pilot light is a small gas flame, usually natural gas or liquefied petroleum gas, which serves as an ignition source for a more powerful gas burner. Originally a pilot light was kept permanently alight, but this wastes gas. Now it is more common to light a burner electrically, but gas pilot lights are still used when a high energy ignition ...
An all-in-one computer (also called an AIO or all-in-one PC) is a type of personal computer that integrates the computer components, such as the CPU, monitor, and speakers, into a single unit. It occupies a smaller footprint than a desktop computer with a tower form factor , and also uses fewer cables.
HP-150 II (aka HP 45849A) [6] replaced HP-150 in 1984. While still called HP Touchscreen II , the touchscreen was no longer standard, but rather a rarely-adopted option. The optional touchscreen bezel was superior to the original bezel, in that the emitters and detectors were now located behind a solid infrared-transparent plastic; thus ...
The new L and A series models had HP-IB interface ability, but as with all HP systems at that time, the blinking LED lights were removed from the front panel. Despite customer demands for a real-time ability and HP R&D's efforts using an installable real-time card, the RTE-A OS was not as good at real-time operations as RTE on a 21MX.
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In large buildings, a fire alarm control panel is located in a secure location, such as in an electrical room where it is also convenient for running electrical wires for system components or in a fire command center. A fire alarm annunciator panel is located where it is accessible to fire-fighting crews, such as at building entrances/exits.
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