Why do we call the decades from the middle of the twentieth century to the present the “information age”? What landmarks characterize this age?

the answer of "what has three legs but never walks" is a yard stick. this answer can be found at

yes that is correct and good

explanation:

like any other technology, art form or field, digital cameras have their own nomenclature. the alphabet soup of jargon can be as confusing and intimidating as trying to understand how all those dials, buttons, levers and menu options affect the pictures and videos that you capture. fear not, because we've defined the most important words, phrases, commands and options you'll need to know when shopping for and learning to operate your new dslr, mirrorless, smartphone or other camera.