TAILIEUCHUNG - Fiber Optics Illustrated Dictionary - Part 67

The Fiber Optics Illustrated Dictionary - Part 67 fills a gap in the literature by providing instructors, hobbyists, and top-level engineers with an accessible, current reference. From the author of the best-selling Telecommunications Illustrated Dictionary, this comprehensive reference includes fundamental physics, basic technical information for fiber splicing, installation, maintenance, and repair, and follow-up information for communications and other professionals using fiber optic components. Well-balanced, well-researched, and extensively cross-referenced, it also includes hundreds of photographs, charts, and diagrams that clarify the more complex ideas and put simpler ideas into their applications context | Fiber Optics Illustrated Dictionary resources provided a window of opportunity for emerging computer companies. They contracted to purchase an operating system from Microsoft and in a remarkable turn of events Microsoft managed to retain the rights to market the product themselves in competition with IBM who called their version PC-DOS. Early versions of MS-DOS were intended for singleuser applications but by version network functionality was added. At about this time multitasking graphical operating systems were being released by several other vendors and there was pressure on MS-DOS to provide features found on other systems. MS-DOS became widespread through the 1980s only slowly giving away to Microsoft s later graphics-based Windows products which were developed in the mid-1980s as front-ends to MS-DOS. MS-DOS s text interface is now infrequently used. See MS-DOS history operating system. MS-DOS history The Microsoft disk operating system MS-DOS was originally Tim Paterson s QDOS. Paterson has reported that he gleaned ideas from a CP M operating system manual published in the mid-1970s. CP M was developed by Gary Kildall a university professor and programmer founder of Digital Research originally Inter-Galactic Research . When IBM first approached Microsoft in the early 1980s to purchase the BASIC programming language for their personal computer they apparently thought they were also obtaining the rights to CP M. Bill Gates signed a nondisclosure agreement to work with IBM and promised to supply BASIC. When IBM found out they hadn t purchased an operating system as well. Gates suggested they call Digital Research developers of CP M. Gates didn t want to lose the languages contract for lack of an operating system and Microsoft didn t have an operating system that would meet IBM s needs. Up until this time Microsoft had concentrated on languages. Digital Research had concentrated on operating systems and Kildall had not expected the gentleman s agreement to .

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