Laptop vs Ultrabook vs Tablet Hybrid vs Netbook

Desktops and laptops have been for long time, then came netbooks, and now ultrabooks and relatively newer tablet hybrids. Tablet Hybrids are duo type devices which are tablet-convertible ultrabook or vice-versa. Such so-called tablet-laptop hybrid are actually windows 8 based tablets(windows 8 pro, not windows 8 RT) with dockable keyboard. Some Manufacturers like Dell and