Welcome to a new journey as we explore the intriguing realm of the Age of Information. This transitionary era denotes a period characterized by a rapid shift from traditional industries birthed by the Industrial Revolution to an economy predominantly based on information technology.

Defining the Age of Information demands an understanding of the role technology and information has assumed in our lives. No longer are we reliant on physical labor and commodities as the primary generators of wealth. Rather, the creation, distribution, and manipulations of information have taken center stage. This era, also known as the Digital Age or the Computer Age, marks a transformative shift in human history, wherein society has grown dependent on the instantaneous, omnipresent accessibility of vast arrays of digitized information.

Key features inherent within this Age of Information include the proliferation and predilection for technological connectivity. Information and Communication Technologies (ICT) have been woven into the fabric of day-to-day life; a facet that is intrinsic and indispensable. These tools have fostered a globalized world, breaking down borders, and substantiating a fluid exchange of ideas unlike anything witnessed prior. The Digital Age also carries an indefatigable capacity for data storage and manipulation, rendering data as a precious commodity. The nexus of these features has auspiciously shaped every walk of life, from trade and economics, to society and culture.

Understanding the transition from the Industrial Age to the Information Age requires us to rewind to the late 20th Century. The Industrial Age, or Machine Age, was a period of history that transformed economies from primarily agrarian to one focused on machine production. The advent of steam power, followed by electricity, powered this iconic transformative phase. However, as the 20th Century began to close, a shift was palpable.

Technology advanced at an exponential rate. Computers evolved from gigantic, room-sized machines to compact units affordable for personal use. The Internet grew from a specialized communication tool for the military and academia to a ubiquitous entity. Collectively, these advancements ushered in the Information Age, a period we are currently navigating.

This transition is also evident in our economic structures. The wealth of nations, once defined by physical goods and manufacturing capability, is now assessed by intellectual capital, innovation, and the ability to produce and apply knowledge.

This elucidation is but the inaugural step in understanding how we arrived at the Information Age, its significance, and the profound implications it presents for our future. We must also delve deeper into the denizens of this information ecosystem, chiefly Artificial Intelligence and Big Data, to fully grasp and navigate this unprecedented era in human history.