Calculator watch financial functions (in the Casio CBA-10). Usually calculator watch operates with eight digits number, however, calculator watch can operate with 6 digits (for example, Casio C-801) or 10 digits (Casio CBA-10) numbers. Calculator watches first appeared in the mid 1970s introduced by Pulsar (1975, then a brand of the Hamilton Watch Company) and Hewlett Packard. Several watch manufacturers have made calculator watches over the years, such as Pulsar and Timex, but the Japanese electronics company Casio produced the largest variety of models. In the mid-1980s, Casio created the Databank calculator watch, which not only performed calculator functions, but also stored
Space Age Electronics Space Age Electronics Space Age Electronics (SAE) is a manufacturing company specializing in fire protection equipment and accessories, located in Sterling, Massachusetts. Founded in 1963, the company is known for its fire alarm notification appliances. In 1970, Space Age Electronics introduced the first visual notification appliances, the AV32 and the AV34 light plate. They used relabeled Federal Vibratone 450D's for their series of 2DCD horns, which were often used with the AV32 or 34.Other popular horns used would be Wheelock 34T-24's, Wheelock 34's or speakers. These would also be used with horns made by other companies, generally Wheelock, Federal Signal,