case of trial of first instance

alternate width-first and depth-first

FCFS First Come First Served

FEFO First – End First – Out

FEFO First C End First C Out

FIFO (first in and first out) memory

FIFO (first in first out)

FINFO First In Not used First Out

FINUFO First In Not Used First Out

first come first served

first come first served policy

first come first served schedule

first coming first serviced

first in first out

first -in -first -out (FIFO)

first in first out basis

first in first out buffer

first in first out buffer memory

first in first out buffering