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
Compact executive car Volvo S60 and V60 in the compact executive car sector. Fellow Swedish brand Saab introduced the 99 in 1968 and replaced it with the 90 in 1984. Under GM control and on GM's GM2900 platform (which also underpins cars like the Vauxhall Cavalier and Opel Vectra), SAAB introduced the 900 (NG) which evolved into the first generation 9-3 in 1998. Saab's last compact executive car was the second-generation 9-3 which was produced from 2003 to 2014. The Japanese luxury automobile market is rather young compared to the European and American markets. There are three main premium car brands in Japan: