Fiber optic internet needs to be translated into electric signal and vice versaDoesn't that add a little latency?
Fiber optic internet needs to be translated into electric signal and vice versaDoesn't that add a little latency? Strictly speaking yes, however you are talking microseconds which is negligable for internet connectionsIf your latency is so critical that these kinds of things matter you WON'T be using the internet to carry your dataFiber also has a slightly slower wave propagation speed than foam dielectric coaxHowever for short distances (like you might find in your local loop) this is again negligable and the long distance links around the world are all fiber regardless of what technology is used in your local loopBoth fiber and coaxial last mile systems are able to deliver latency that is negligable compared to other sources of latency in a typical internet connectionTherefore in reality your latency is going to be far more affected by the quality of your ISPs network (how direct the long distance routes are, whether there are congested routers between you and your destination) than by whether your last mile is coax or fiber DSL tends to have a much higher latency than either fiber or coax based system because of the complex modulation techniques required to squeeze such high data rates down a phone lineOne final note, In some parts of the world systems with fiber from the phone exchange to a cabinet in the street and then VDSL from the cabinet to the end user are (misleadingly IMO) advertised as fiberDue to the DSL component such services will be relatively high latency.
Sometimes certain things do not behave in a linear wayIf 2 is made 4, 2k does not become 4k if k itself changesThese are called nonlinearSquaring a number is a nonlinear processSo 2.51 becoming 5.51 is not a matter of concern.
