Advancements in hardware
When Intel revealed its first Dynamic RAM module in 1970, it was capable of holding 1 KB of data. Approximately 50 years later, we've 128 GB RAM modules available in the market. That's nearly 1.28 x 108 times as much memory space.
A similar trend has been exhibited by hard disks. With the first hard disk for personal computers being able to store a precious 5 megabytes, 2016 saw Seagate announcing a 60-terabyte storage on a solid-state drive. That's a 1.2 x 107 fold increase.
But we've only yet talked about direct individual computing comparisons, without considering the effect of technological growth since the first computers were introduced. Today, with the advent of cloud computing, it's become common to hear someone talking about unlimited cloud storage.
AI has greatly benefited from this exponential increase in computing speed and data storage.