A queue is a buffered list that maintains a first in/first out (FIFO) order of data items. A queue in LabVIEW can be used when communicating between processes within a program. You can create a queue using Queue Operations VIs
A common example of using a queue is in producer/consumer situations
, where one portion of code is creating (or producing) data to be processed (or consumed) by another portion. The advantage of using a queue is that the producer and consumer will run as parallel processes and their rates do not have to be identical.
Figure 1: The VIs on the Queue palette (Programming » Synchronization » Queue Operations