Please help me with answer:

any 2 techy products which we no longer use. we have to write its technology life

cycle. We have to answer these following questions for each product separately :

a. how was its inception, initial R&D activities, companies involved?,

b. How was the early marketing like? How did the market respond?

c. Who were the major players? How did competition appear? Did it reach saturation in market?

d. How did new technology replace it? What technology replaced it? What do you think could revitalize it and take it to a different path instead of death (i.e. getting obsolete)?