Casio (1s, 10s, 100s, etc ... ) had nine keys. Another distinguishing innovation was the use of a single display window instead of the three display windows (one for each argument and one for the answer) used in other calculators. Casio Computer Co., Ltd. was formed in June 1957. That year, Casio released the Model 14-A, sold for 485,000 yen, the world's first all-electric compact calculator, which was based on relay technology. In the 1980s, its budget electronic instruments and its line of affordable home electronic musical keyboard instruments became popular. The company also became well known for the wide variety
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