Some experts believe that due to technology changes and other environmental changes, each generation might have basic needs, but at the end of the day, there needs for products and services are different than previous generations.supporting the belief that each generation has similar needs for products or services.
I agree with the responses above. As circumstances change, needs change with them. Abstracting just slightly from the points made above, this is the conclusion we can draw.
The most pervasive and obvious change in the recent past has been technology and computer oriented. Earlier circumstancial and widespread social changes may have led one generation to need more sets of clothing than a previous generation due to (abstract, yet undeniable) shifting social norms.
The need for eye glasses seems similar as well and can be related to changes in daily activities, social circumstances, and modes of livelihood.
The need for rapid access to information through computers (and it is, for most of us, a need) is one major generation change. But I think there is a sort of transcendant element to human needs that takes different forms at different times. For example, people have a need for socialization. Today that can take a variety of forms, including school, church, social media, athletic teams, and so on. In previous times, people, especially women, expressed this need in different ways. Churches were still important, but other communal activities, like festivals, for example were important.
I had never looked at it this way, but it is definitely true. I need a computer. I use it for work, for all of my jobs, and for research. If I ever have a problem, I look it up. My parents did not have this option at my age, and neither did my grandparents.
It is, at the very least, true that different generations have different needs because technology changes. My generation did not need computers when we were teens because there were no computers. Today's generation does because technology has changed and therefore what people expect to have has also changed.
It depends what you mean by "basic needs." If you mean "food, water, shelter, etc. a la Maslow," then no, all generations as long as they're human have those needs. If you mean do we aquire new needs with each new epoch--hell, yeah. Think about whether you can go without a car or bus these days as you once could when we lived in smaller villages. It's nearly impossible, especially in cold places like Canada! Insofar as wants can also be needs (in some cases), again, yeah, yeah, yeah! I don't just "want" my cell phone, I "need it."