leading edge

leading edge

(1) The edge of a document (or of a punch card during many decades of data processing) that enters the read station first.

(2) In digital electronics, a pulse as it changes from a 0 to a 1.

(3) In programming, a loop that tests a condition before the loop is entered.

(4) The latest technology. See bleeding edge.

(5) (Leading Edge Products, Inc., Westborough, MA) A PC manufacturer founded in 1980. Its Model M (for Mitsubishi) in 1982 was the first PC from overseas. Korean Daewoo Corporation supplied it with products since 1984 and acquired it in 1989. Leading Edge computers are no longer sold in the U.S.

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leading edge [′lēd·iŋ ′ej]

(aerospace engineering)

The front edge of an airfoil or wing.

(design engineering)

The surfaces or inset cutting points on a bit that face in the same direction as the rotation of the bit.

(physics)

The major portion of the rise of a pulse.

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leading edge, lock edge, strike edge

The vertical edge of a swinging door or window which is opposite the hinge edge.