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https://en.wikipedia.org/wiki/Bell_Labs

…ates and around the world. As a former subsidiary of the American Telephone and Telegraph Company (AT&T), Bell Labs and its researchers have been credited with the development of radio astronomy , the transistor , the laser , the photovoltaic cell , the charge-coupled device (CCD…

https://research.birmingham.ac.uk/en/publications/997d0092-2cc6-4671-9909-769632a3555d

…ew article peer-review 46 Downloads (Pure) Abstract When the first transoceanic telegraph cables were laid in the mid-1800s, rapid communication between continents became possible. The advent of fibre-optic submarine cables in the 1990s catalyzed a global digital revolution. Toda…

https://www.academia.edu/44968569/A_THEMATIC_STUDY_OF_THE_NINETEENTH_CENTURY_DEFENCES_Prep…

…ions in what were increasingly sophisticated and integrated systems of defence. Telegraph and railways had already sped up communications and the movement of troops and artillery, and these were implemented in the colonial fortifications and defence schemes. Later in the century,…