Ring Ring
Phones are probably the number one item on this list that have undergone the most significant and even shocking change. Just look at this dialup phone and compare it to today’s iPhone. Truth be told, there is very little to compare.
While, yes, the iPhone functions as a phone- it behaves more like a computer. You can surf the web, calculate, message, and even take high quality photos with your iPhone. Chances are if you told someone using a phone in the 1900s what they would be like today, they wouldn’t even have the ability to comprehend what you were saying!