Programmable calculator to use magnetic strips were the HP-41C and TI-59. Continuous memory does not lose its content when the calculator is switched off. With continuous memory the user can, for example, change batteries without losing the entered programs. Compact Cassettes offered a simple, inexpensive alternative to magnetic cards. Usually, an interface module, such as the Casio FA-1, was used to connect the calculator to an ordinary cassette recorder and digital data were encoded as frequency-shift keyed audio signals. Sharp and Hewlett-Packard also sold dedicated micro- or mini-cassette recorders that connected directly to the calculator. These set-ups, while being more practical and
Samsung Electronics GmbH of Hannover, a design award for design materials and process technologies. In 2010, the German company selected a total of 42 products in the areas of home appliance, furniture, and industrial design. Samsung won the awards in five categories including external hard disk, full-touch screen phone, "side-by-side" refrigerator, compact digital camera, and laser printer toner. All Samsung mobile phones and MP3 players introduced on the market after April 2010 are free from polyvinyl chloride (PVC) and brominated flame retardants (BFRs). The company is listed in Greenpeace's Guide to Greener Electronics, which rates electronics companies on policies and practices to