What different kinds of lawn mowers are there?

A mower is a machine used to cut lawn grass. Before mowers were invented, lawn grass was shortened by scythes or grazing animals. The lawn mower was first invented in 1830 by English inventor Edwin Beard Budding, who patented a manual push mower. Over the years, they have evolved into many forms and can be powered by electric motors or gas engines. They can be push-from-behind mowers or riding mowers. The latter category includes both sit-down and stand-on varieties.

• Reel, or cylinder, mowers have a rotating cylinder comprised of several blades that chop the grass with a scissor-like cut. The Budding mower was actually a reel mower.
• Flail mowers have spinning blades.
• Some mowers only have a single horizontally rotating blade. 
• A finishing mower generally has multiple blades capable of cutting lower than a standard mower.
• Mowers can also be described by their steering mechanism, such as a zero-turn mower.