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DOS/4G
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<p>DOS/4G is a <a href="/facts/32-bit/TDMVce8s">32-bit</a> <a href="/facts/DOS_extender/fhzoAhzm">DOS extender</a> developed by <a href="/facts/Rational_Systems/LVdIa56D">Rational Systems</a> (later <a href="/facts/Tenberry_Software/LVdIa56D">Tenberry Software</a>). It allows <a href="/facts/DOS/sWwDXNmX">DOS</a> programs to eliminate the 640 <a href="/facts/Kilobyte/jIe6t4yv">KB</a> <a href="/facts/Conventional_memory/hLcfWzlB">conventional memory</a> limit by addressing up to 64 <a href="/facts/Megabyte/RBF4XpWb">MB</a> of <a href="/facts/Extended_memory/WoJJj268">extended memory</a> on <a href="/facts/Intel_80386/ag5eSgWv">Intel 80386</a> and above machines. </p>