FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Douglas Engelbart, (born January 30, 1925, Portland, Oregon, U.S.-died July 2, 2013, Atherton, California), American inventor whose work beginning in the 1950s led to his patent for the computer mouse, the development of the basic graphical user interface (GUI), and groupware. Engelbart won the 1997 A.M.

Detailed explanation-2: -Doug Engelbart reportedly conceived the mouse during a conference lecture in 1961. His first design, in 1963, used rolling wheels inspired by mechanical area-measuring devices called planimeters invented in the 1800s. Engineers at Germany’s Telefunken also invented a mouse in the mid-1960s.

Detailed explanation-3: -Engelbart applied for a patent in 1967 and received it in 1970, for the wooden shell with two metal wheels (computer mouse – U.S. Patent 3, 541, 541), which he had developed with Bill English, his lead engineer, sometime before 1965.