These are descended from laptops and 20 years ago laptops had already perfected the engineering for a two-year target lifetime. The further back you go, portab

These are descended from laptops and 20 years ago laptops had already perfected the engineering for a two-year target lifetime. The further back you go, portables were still mainly business machines not expected to be affordable to most students, and businesses really didn't want to send their people out with more than a two-year-old laptop or wearing a suit much older either. And a new Windows version was coming out every 2 years.