first in first out

/F ER1 S T IH0 N F ER0 S T AW0 T/
noun
  1. 1

    (computing) A type of queue data structure in which the oldest added items are retrieved first.

  2. 2

    (management) A policy of assigning priority to tasks and assignments that have arrived for service first.

  3. 3

    (accounting) A method of inventory accounting that values items withdrawn from inventory at the cost of the oldest item assumed to remain in inventory.