FIFO Hear it!

FIFO Definition

☆ FIFO (fī′fō′)

noun

a method of valuing inventories in which items sold or used are priced at the cost of earliest acquisitions and those remaining are valued at the cost of most recent acquisitions

Etymology: f(irst) i(n,) f(irst) o(ut)

FIFO Finance Definition

See first in, first out.

FIFO (First-In-First-Out) Telecom Definition

A buffering or temporary storage method in which the entity that first exits is the one that first entered. Thereby, the entity served (e.g., processed or switched) is the one that waited the longest period of time. FIFO is commonly used in message switches such as automatic call distributors (ACDs), PBXs, switches, and routers in the absence of a priority mechanism employed to establish quality-of-service (QoS) differentiation between different types of calls, packets, or other message entities. See also LIFO and queue.

FIFO Usage Examples

Converse of object

  • create: First the program creates a fifo with read-write permissions using the function mkfifo.
  • use: The same program where we previously used a pipe can be modified and implemented using a fifo.

Noun used with modifier

  • \_: S 0:00 \_ pickup -l -t fifo -c 1863?
  • -t: S 0:00 \_ pickup -l -t fifo -c 1863?
  • -l: S 0:00 \_ pickup -l -t fifo -c 1863?
  • control: SIGUSR1 On receipt of this signals, init closes and re-opens its control fifo, /dev/initctl.