TopView
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TopView is the first object-oriented, multitasking, and windowing, personal computer operating environment for PC DOS developed by IBM, announced in August 1984 and shipped in March 1985. TopView provided a text-mode (although it also ran in graphics mode) operating environment that allowed users to run more than one application at the same time on a PC. IBM demonstrated an early version of the product to key customers before making it generally available, around the time they shipped their new PC AT computer.
TopView is the first object-oriented, multitasking, and windowing, personal computer operating environment for PC DOS developed by IBM, announced in August 1984 and shipped in March 1985. TopView provided a text-mode (although it also ran in graphics mode) operating environment that allowed users to run more than one application at the same time on a PC. IBM demonstrated an early version of the product to key customers before making it generally available, around the time they shipped their new PC AT computer. ==Reception== InfoWorld in 1985 described TopView as "bland, plain vanilla software that hogs far too much memory". BYTE also criticized TopView's memory usage, but stated that "you will find that most software written for the IBM PC is TopView-compatible". Noting the low price and "innovative multitasking features", the magazine predicted that the software "will attract a lot of takers". In 1985, Digital Research positioned their multitasking Concurrent DOS 4.1 with GEM as alternative for TopView.
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