What characteristic of the ENIAC made it less effective in making logical decisions?

The characteristic of the ENIAC that made it less effective in making logical decisions is its primitive memory. The ENIAC, being one of the earliest electronic general-purpose computers, had a very basic and limited memory architecture. This restricted the amount of data and the complexity of operations it could handle simultaneously.

Primitive memory means that the ENIAC could not store and access data efficiently or quickly, which is essential for making logical decisions based on real-time data. Effective decision-making in computing often requires quick access to a wide range of data points and the capacity to handle multiple tasks or calculations at once. The limited memory capabilities of the ENIAC hindered its ability to make complex calculations and decisions promptly.

In comparison, issues like power supply, processing speed, and input methods, while they may have affected the overall performance of the ENIAC, were not as directly tied to its ability to perform logical decision-making tasks as the limitations of its primitive memory. Memory plays a crucial role in the storage and retrieval of information necessary for logical reasoning and decision-making processes in computing.