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A fire alarm annunciator panel is located where it is accessible to fire-fighting crews, such as at building entrances/exits. The annunciator panel will indicate the system status using lamps (or LEDs), an audible warning tone, and depending on the system technology, the exact location or approximate physical location of the source of a fire ...
A panel discussion, or simply a panel, involves a group of people gathered to discuss a topic in front of an audience, typically at scientific, business, or academic conferences, fan conventions, and on television shows. Panels usually include a moderator who guides the discussion and sometimes elicits audience questions, with the goal of being ...
1801: James Pillans, headmaster and geography teacher at the Old High School in Edinburgh, Scotland, is credited with inventing the first modern blackboard. [1]1925: George Brooks of Topeka, Kansas is issued a patent for the use of corkboard as a bulletin board which you could stick tacks into. [2]
Images can also be animated through digital or physical processes. In the context of signal processing, an image is a distributed amplitude of color(s). [1] In optics, the term image (or optical image) refers specifically to the reproduction of an object formed by light waves coming from the object. [2]
Announcement may refer to: "Announcement" (song), a 2008 song by Common; Announcement (computing), a message about a new software version; Campaign announcement, a type of political speech; Public service announcement, a media message in the public interest; Press release, a communication via news media "Announcement"
A welcome screen for the Free-net bulletin board, from 1994. A bulletin board system (BBS), also called a computer bulletin board service (CBBS), [1] is a computer server running software that allows users to connect to the system using a terminal program.
Panel painting, in art, a painting on a wood panel (as opposed to canvas, a wall etc) Panel (comics), a single image in a comic book, comic strip or cartoon; also, a comic strip containing one such image; Groupings of rock art, pictographs or petroglyphs
A public service announcement (PSA) is a message in the public interest disseminated by the media without charge to raise public awareness and change behavior. Oftentimes these messages feature unsettling imagery, ideas or behaviors that are designed to startle or even scare the viewer into understanding the consequences of undergoing a particular harmful action or inaction (such as pictures ...