What are the seven followers of Buddhism referring to?

The lay asked: what is the "seven disciples" of Buddhism?

Zhi Du A: There are seven types of Buddhists, called "Seven Disciples", of which the monk Monk or the number of monks in the pre-admission of the five----said

For monks:

(a) The monks (the monks were 250);

Second, the nuns are all (the female monk who holds the nuns 348 precepts);

Third, Shami (the monk who held novices Ten Commandments) as a monk.

Four, the type of fork-------------------before the woman was given a nun's precepts, she learned six law by holding the FA

V. Shramanerika (a monk who is a woman of Shramanerika 10).

In the House of the two people--called the audience:

First, the people of converted (at home men are held three, five precepts, near Dharma);

Second, the majority of the people (at home women are held three converted, five precepts, near Dharma).

What are the seven followers of Buddhism referring to?