IPA: /ʌnˈkɒmpjʊtəraɪzd/
KK: /ʌnˈkəmˌpjuːtəraɪzd/
Not equipped with or using computers.
The library still has many uncomputerized records that need to be updated.
Uncomputerized → It is formed from "un-" (meaning not) and "computer" (from Latin *computare*, meaning to calculate or count) and "-ized" (meaning to make or become). The word "uncomputerized" means not made into a computer system or not using computers.
Think of 'not' ('un-') using a 'computer' — that's why uncomputerized means not using computers.