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 Snap! Compact Snap! Compact Snap! is a greatest hits CD collection from The Jam. It is an abbreviated version of the vinyl double-album "Snap!", originally released in 1984. "Compact Snap!" is the second greatest hits album by The Jam. The "Compact Snap!" CD omitted 8 tracks from "Snap!" in order be released as a single CD. The omitted tracks were "Away from the Numbers", "Billy Hunt", "English Rose", "Mr. Clean", "The Butterfly Collector", "Thick As Thieves", "Man in the Corner Shop" and "Tales from the Riverbank". The result is that "Compact Snap!" is a collection of all "The Jam"'s singles, with