Scientific calculator was the first company to produce one (Casio fx-7000G). Scientific calculator A scientific calculator is a type of electronic calculator, usually but not always handheld, designed to calculate problems in science, engineering, and mathematics. They have almost completely replaced slide rules in traditional applications, and are widely used in both education and professional settings. In certain contexts such as higher education, scientific calculators have been superseded by graphing calculators, which offer a superset of scientific calculator functionality along with the ability to graph input data and write and store programs for the device. There is also some overlap with the
Hyderabad Electric Supply Company Hyderabad Electric Supply Company Hyderabad Electric Supply Company or HESCO is an electric distribution company which supplies electricity to all the districts of Sindh in Pakistan, excluding Karachi. Hyderabad had an Area Electricity Board (AEB) as one of the eight AEBs constituted through amendments in WAPDA Act during 1981. Later on as the Government of Pakistan approved the revamping of the Water and Power Development Authority (WAPDA) power sector in April 1998, the Hyderabad Electric Supply Company took over responsibilities of the Hyderabad Area Electricity Board. Hyderabad Electric Supply Company is owned and operated by WAPDA though. The company was