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PBX switchboard, 1975. A telephone switchboard is a device used to connect circuits of telephones to establish telephone calls between users or other switchboards. The switchboard is an essential component of a manual telephone exchange, and is operated by switchboard operators who use electrical cords or switches to establish the connections.
Switchboard technology was a physically demanding task, involving numerous plugs, keys, lights, connecting cords, and complicated protocols for establishing connections. The full-time operators were on duty 56 hours per week, and while they often grumbled about being overworked by a harsh boss, they were reasonably compensated at $50 a month.
A low-voltage switchboard A modern electric switchboard. An electric switchboard is a piece of equipment that distributes electric power from one or more sources of supply to several smaller load circuits. It is an assembly of one or more panels, each of which contains switching devices for the protection and control of circuits fed from the ...
In 1887 Puskás introduced the multiplex switchboard. [vague]. [15] Later exchanges consisted of one to several hundred plug boards staffed by switchboard operators. Each operator sat in front of a vertical panel containing banks of ¼-inch tip-ring-sleeve (3-conductor) jacks, each of which was the local termination of a subscriber's telephone ...
Switchboard, another term a helpline. Switchboard of Miami , a nonprofit organization offering hotline, informational and referral services in Miami, Florida Switchboard (UK) , formerly known as the London Lesbian and Gay Switchboard, a helpline for the LGBT+ persons in the UK
Vice President Kamala Harris' neighborhood of Brentwood in Los Angeles was ordered to evacuate Tuesday night as wildfires continue to blaze in the area, her spokesperson said.
A background process is a computer process that runs behind the scenes (i.e., in the background) and without user intervention. [1] Typical tasks for these processes include logging, system monitoring, scheduling, [ 2 ] and user notification.