long time ago we used calculator, and we realise we can't do much about it but to sum up some numbers only,
so we got computers, ........ for complex calculations
then, businessmen complain carrying computer from place to place to discuss business is very troublesome, it's too big bulky.
so we got laptops, ........ for easy travelling business purposes
and college kids to show off in the library
then we got some girls crying over how heavy a laptop is and they can't carry it to shopping malls, so that they could go to starbucks and login to thier facebook playing farmville while shopping,
so we got netbooks, ........ for light weight, easy to carry computers
and no more girls broke their arms carrying heavy laptops ever since.
then we got some lots of boys, and some girls with fat fingers complaining over the small keyboard on the netbooks.
so we got....