I think it is safe to say that the consumer electronic industry has "exploded" over the last 20 or 30 years. Constant technological advancements provide an unending stream of toys and tools for sale.
One small segment in the consumer electronics market that can show how fast technology changes is in the digital audio player (frequently called mp3) market. The first mp3 players appeared in the late 1990's and early 2000's, and the first iPod appeared in 2001. These devices had a limited amount of storage and black and white screens. By 2006, digital audio players with color screens and video playback were common, and in 2007 the iPhone and iPod touch were released, with larger, touch-controlled screens. In the span of about 6-7 years, the iPod and its competitors progressed from audio-only devices to full-blown mini computers with web browsing, apps, and games.
Beyond mp3 players, the constant innovation of the tech industry has generated booming business for many years, and it looks to continue that way for quite a while.
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