Pertinent Pertinent was an Australian monthly periodical edited by Leon Batt. Contributors included Ian Mudie, Kylie Tennant, William Hart-Smith, the artist Rosaleen Norton and the poet Gavin Greenlees, Dulcie Deamer, Yvonne Webb, George Farwell, Marjorie Quinn, Marien Dreyer, and Robert Crossland Started in 1940 the magazine ceased publication in 1947.
Part of the Microprocessors glossary: Transistor-transistor logic (TTL) is a digital logic design in which bipolar transistor s act on direct-current pulses. Many TTL logic gate s are typically fabricated onto a single integrated circuit (IC).
(3) Short for through-the-lens it is a name for the LCD screen on a digital camera that shows what is projected onto the sensor by the lens. This is an alternate to using the optical or electronic viewfinder. Also called a TTL viewfinder.