Neutron Stars and Pulsars: Discussion/Questions

1. How are neutron stars related to pulsars?
2. How do we see pulsars? What kinds of light do they emit?
3. How do they emit light?
4. Is it possible to observe all pulsars?
5. How big is a pulsar or neutron star in comparison to a 1 solar mass white dwarf? a 0.5 solar mass star?
6. What is the fate of pulsar stars?