1. The problem statement, all variables and given/known data Why is serial data transmission preferred over parallel transmission when needing to transmit data over vast distances? 2. Relevant equations 3. The attempt at a solution I think this has many different reasons...but I'm trying to pinpoint important ones. -I think the most obvious is that a parallel transmission needs more lines and thus cost more. -Another one would be cross-talk is more emminent with signals bundled close together. -(I'm not sure about this one) but isn't most serial schemes asynchronous while parallel is usually synchronous? a clocking signal could get tainted with noise or DC drift. Can you help me think of any other reasons?