Either natural gas, liquid propane, or diesel gas are utilized to run home standby generatorâs internal combustion engine to help avoid any disruption of electrical power. 1. Generac 6461 Guardian Series - The 6461 Guardian Series of automatic standby generators offer safe, clean air-cooled, and efficient operation.
The most famous implementation of hypertext is the World Wide Web.   Another Answer  A special type of database system, invented by Ted Nelson in the 1960s, in which objects (text, pictures, music, programs, and so on) can be creatively linked to each other.
In December of that year, Engelbart demonstrated a hypertext interface to the public for the first time, in what has come to be known as  The Mother of All Demos . Funding for NLS slowed after 1974. Influential work in the following decade included NoteCards at Xerox PARC and ZOG at Carnegie Mellon.