Sharp EL-125TWH Office Desktop Calculator - Black/White. Sharp has remained a leader within the electronic calculator industry since its introduction in the 1960s. Sharp has innovated the industry through numerous breakthroughs, such as the first all transistor-diode electronic desktop calculator in 1964, the first calculator with LCD display in 1973, and the first solar-powered pocket calculator in 1980. Sharp is dedicated to the use of unique, innovative technology to contribute to the culture, benefits, and welfare of people throughout the world.