ISO

noun

(computing) A disk image of an ISO 9660 file system (such as a CD or DVD); also used as the file extension for such a file.

ISO is an international standard-setting body.

意味（1）

(computing) A disk image of an ISO 9660 file system (such as a CD or DVD); also used as the file extension for such a file.

I downloaded the ISO but got an error when trying to burn it to disc.

意味（2）

(photography) A measure of film sensitivity or brightness, derived from the ISO standard.