Over the years, numerous consumer products (such as rotary-dial telephones, analog radio tuners, turntables, and vacuum tubes) have become obsolete or nearly so, while m any new products have entered the market. Make two lists: a comprehensive list of obsolete products that you can think of and a list of new products. Comment on the reasons for the changes you observe.
List and discuss the different manufacturing methods and systems that have enabled the manufacture of new products. (Recall that these products and systems are known as enabling technologies.)