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Definition: 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.