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TD-2 was a microwave relay system developed by Bell Labs and used by AT&T to build a cross-country network of repeaters for telephone and television transmission. The same system was also used to build the Canadian Trans-Canada Skyway system by Bell Canada , and later, many other companies in many countries to build similar networks for both ...
A cable could have 5.25-inch style connectors, 3.5-inch style connectors, or a combination. After IBM introduced the "twist" to floppy cables, and when both 5.25-inch and 3.5-inch drives were in common use, many cables had four connectors: one of each type before the twist, and one of each type after the twist.
Thunderbolt is the brand name of a hardware interface for the connection of external peripherals to a computer.It was developed by Intel in collaboration with Apple. [7] [8] It was initially marketed under the name Light Peak, and first sold as part of an end-user product on 24 February 2011.
Historical Word serial interfaces connect a hard disk drive to a bus adapter [b] with one cable for combined data/control. (As for all early interfaces above, each drive also has an additional power cable, usually direct to the power supply unit.) The earliest versions of these interfaces typically had an 8 bit parallel data transfer to/from ...
Olive Lake, Ontario microwave repeater tower with TD-2 horns on top and TD-3 horns lower down. SaskTel was the first regional carrier to complete their assigned section of the system, which went operational in 1957. The entire system carried its first signals on 18 June 1958, and was declared officially operational on 1 July, Dominion Day. [7]
Before using microwave relay and coaxial cables, AT&T used open wire lines for long-distance service. In 1911, the system connected New York to Denver. [1] The introduction of repeater towers allowed such connections to reach across North America. Starting in the 1920s, the company increasingly used long-distance coaxial cable and carrier systems.
In his first sit-down broadcast interview since the Nov. 5 election, President-elect Donald Trump said he would begin pardoning rioters who participated in the Jan. 6 attack on the U.S. Capitol on ...
Amphenol was founded in Chicago in 1932 by entrepreneur Arthur J. Schmitt, whose first product was a tube socket for radio tubes (valveholder bases). [6] Amphenol expanded significantly during World War II, when the company became the primary manufacturer of connectors used in military hardware, including airplanes and radios.