Texas Instruments

Texas Instruments, better known in the electronics industry as TI, is a
company based in Dallas, Texas, renowned for developing and commercializing
semiconductor and computer technology.

TI is a major manufacturer of transistors and integrated circuits. The
integrated circuit was invented by Jack Kilby of TI in 1958. The 7400 series
of transistor-transistor logic (TTL) chips, developed by TI in the 1960s,
popularized the use of integrated circuits in computer logic, and is in
widespread use to this day. The TI-30 was one of the most popular early calculators.