singular possessive = computer's
The computer's screen is broken.
plural possessive = computers'
The computers' screens are broken
The plural form of "Computer" is "Computers".
The possessive form of the singular noun computer is computer's.
example: Her computer's exterior is candy apple red.
The possessive form for the noun computer is computer's.
Example: I searched the computer's files for my homework.
The plural form of the noun computer is computers.
The plural possessive form is computers'.
Example: The computers' prices vary widely.
computers'
Cimputers
The possessive form of the singular noun computer is computer's.Example: The computer's screen is too bright.
The possessive form is Amos's.
Quantum is singular, not singular possessive. The singular possessive form is quantum's.
The singular form is goose; the singular possessive form is goose's.The plural form is geese; the plural possessive form is geese's.
The singular possessive form is week's.
The singular possessive form is frontiersman's.
The singular possessive form is aircraft's.
The singular possessive form is contralto's.
The singular possessive form is speculum's.
The singular possessive form is herd's.
The singular possessive form is heart's; the plural possessive form is hearts'.
The singular form for the noun families is family. The singular possessive form is family's.