Are cellular technology is multilayered technology?

Much of the growth in cellular comes from the consumer market as the equipment becomes more affordable

When a person invents something, errors are unavoidable. That's why other people reinvent that technology and develops it to be easier and faster than before.

No, because technology isn't just what people make, technology is also grass, water, etc. Technology is everything in this world, in a way. Trust me when I say this, because I had to do a home work...

If a pieace of other technology is old and want new technology you need to build a new type of technology that you could use and do other stuff like using something old and making it new!

Windows 7, iPad, iPhone 4, the new iMac. Hope this helped.