I am good with computers so I know these ways. I understand the conventions of computing. I understand them because thatâ€™s what Iâ€™m interested in and where Iâ€™ve spent my time. I enjoy computers and what I can do with them.
But not everybody does.
In fact, Iâ€™d wager most people donâ€™t enjoy their interactions with computers. Theyâ€™re confusing. Why? Because theyâ€™re unpredictable. Doing the same thing over and over doesnâ€™t always produce the same result.
— Computers are not predictable | Tech in the Trenches
One of the reasons why tablets and smartphones are becoming popular ways to use technology is that they’re far more predictable. Less cognitive overhead, and consistent user experience make these device much easier for ordinary people to grasp.