A microkernel implements all drivers as user-space programs, and implements core features like IPC in the kernel itself. A monolithic kernel, however, implements the drivers as a part of the kernel...
The main difference between porcelain and fine bone china is the inclusion of up to 50 percent bone ash in the porcelain mixture that makes up bone china. China is also typically fired at a lower temperature than porcelain, which is double-fired at very high temperatures. Keep Learning.
Vitreous china and porcelain cost about the same, however, vitreous china is better at resisting spills, scrapes, or other bathroom mishaps. The high gloss enamel is very durable and creates a stain-resistant surface. Also, vitreous china has sanitary properties which are great to use in the bathroom.