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IBM 5100 (1975) Successful demonstrations of the 1973 SCAMP prototype led to the first commercial IBM 5100 portable microcomputer launched in 1975. The product incorporated an IBM PALM processor, 5-inch (130 mm) CRT, full function keyboard and the ability to be programmed in both APL and BASIC for engineers, analysts, statisticians and other business problem-solvers.
In North America, the rings themselves come in a variety of sizes, including 0.5, 1, 1.5, and 2 inches (13, 25, 38, and 51 mm), though other sizes are also available. The rings may be secured by lever arch [1] mechanisms or other securing systems. The binders themselves are typically made from plastic with metal rings.
Binder's "I, Robot" was the cover story in the January 1939 issue of Amazing Stories Binder's novella Land of the Shadow Dragons was the cover story in the May 1941 issue of Fantastic adventures Otto Oscar Binder [ 1 ] ( / ˈ b ɪ n d ər / ; [ 2 ] August 26, 1911 [ 3 ] – October 13, 1974) [ 1 ] was an American author of science fiction and ...