Some technology trends are continuous.
Computers get smaller, faster, and cheaper. Storage gets larger in storage size, smaller in physical size, faster, cheaper, and easier to add to your system. These are givens and aren't really anything more than confirming instances of Moore's Law, which states that computing power doubles every 18 months. It could be overthrown at any time, but it has proved to be a pretty accurate predictor in the computer industry. Some trends are obvious from walking the floor at Comdex.