What does OSI model actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

John Mark Walker has offered up an excellent analysis of "open source" (the descriptor, that is). I've been struggling with this for some time (as has Gartner, more recently), and appreciate John ...

The Physical Layer: Understanding the OSI Model Understanding the OSI Model Josh Stephens is Head Geek and VP of Technology at SolarWinds, an IT management software company based in Austin, Texas.