What is FIFO?
FIFO stands for First In and First Out. Basically, here the first piece of data to be stored is the first one to be accessed. Hence, it can be said that the data is accessed in the order that it was stored. Think of FIFO as a line, where the first person to get in the line is the first person to get service, the second person in line gets service second, and so on and so forth.