Cellular telephony began operations as a commercial concern in 1977. The Internet became public in 1993. In between there have been a lot of important innovations at the consumer end of the market: CD-ROM, DVD, mp3, GPS, SMS, etc. and a very large number of upstream, production-end changes that have transformed the way things are made, from chip cameras, NLVE, affordable 3D graphics, Max-MS and so on.
My research indicates a significant production of consumer technology about every eight months. This is a challenge for media teachers, who have to plan not for the four or five years of a typical business plan, but for the forty or more years a student can cheerfully look forward to spending in the workforce. Needless to say, it also makes crystal-ball gazing deeply difficult.