The desktop’s evolution is effectively over and the laptop isn’t far behind. The latter is being driven by advances in 3D graphics and GPGPU capability. These abilities are than backported to the desktop space, where they keep things moving along, at least a bit. Tablets and phones are now driving evolution in computing, and that’s not necessarily a bad thing. If you create content, program, or design, chances are that you do it on a desktop or laptop. Long lifespans, stable designs, and strong relative performance are essential to those roles. The fact that the hardware is dirt cheap helps to bridge the digital divide — cell phones and tablets may be at the forefront of what’s hip, but beige boxes with wired Ethernet still have a vital role to play when it comes to pushing internet access out to the poorer segments of society.
— PC obsolescence is obsolete, ExtremeTech.