In the early days of computer technology, which system was justified because data-processing personnel were in short supply, hardware and software were expensive, and only large organizations could afford computers

Centralized Processing

Explanation:

Centralized processing was developed to process all of the data in a single computer, and since the first computers were stand-alone with all input and output devices in the same room, only the largest organizations could afford to use centralized processing.

answer; defense;