Concept:Arrange the devices from the earliest invention to the latest invention.
Explanation:I is the abacus, which came first as the earliest counting device.
IV represents Pascal's/Difference Engine, which came next.
III is the Analytical Engine, which was invented after that.
II is ENIAC, the electronic computer, which came last.
Therefore, the correct chronological order is I, IV, III and II.
Answer:B. I, IV, III and II