Errant internal and external devices are among the most notorious causes of wide-ranging problems for Mac OS X. These include, but are not limited to: Startup stalls or hangs Kernel panics (repeated ...
As also documented in our tutorials "Identifying and neutralizing problematic internal/external devices" and "Startup fails; solving", problematic external devices (FireWire, USB, etc. -- particularly ...
These days, if you need to connect two devices via wire, you'll most likely use HDMI. This display protocol supports all sorts of device pairings. It lets you use your iPhone with an external display, ...