Microcassette

A Microcassette (often written generically as microcassette) is an audio storage medium introduced by Olympus in 1969. It uses the same width of magnetic tape as the Compact Cassette but in a much smaller container. By using thinner tape and half or a quarter the tape speed, microcassettes can offer comparable recording time to the compact cassette. The original standard microcassette, the MC60, gives 30 minutes recording per side at its standard speed of 2.4 cm/s, and double that duration at 1.2 cm/s; an MC90, giving 45 minutes per side @ 2.4 cm/s, is also available from a few manufacturers.

twinstick

A twinstick, in Canadian broadcasting, is a term for two television stations, broadcasting in the same market, which are owned by the same company. The term derives from the use of "stick", in broadcasting industry jargon, as a term for a broadcast transmitter tower.

In the United States, a broadcast operation of this type is more commonly known as a duopoly.