D-type
1. <hardware> A type of computer peripheral connector so named
because one side is shorter (with one less pin) than the other
giving a (squarish) "D" shape. The connectors have two rows
of pins (or holes). Common types are 25-way (13+12 pins) and
9-way (5+4 pins). They are often used for serial lines,
especially {EIA-232}.
(1995-01-05)
2. {D-type flip-flop}.