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나라 곳간지기에 與 4선 박홍근… ‘비명횡사’ 박용진 총리급 위촉
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Intel did IBM one better. Not only did they license the design to AMD, but they licensed it to several other companies as well. And after IBM selected the 80286 CPU to power its PC/AT, Intel amended the agreement with AMD and several others so they could manufacture not only 8088 and 8086 CPUs, but 80286 CPUs as well.
The DOS memory management was probably written sometime around summer 1982, and it meshed with the newly added process management functions (EXEC/EXIT/WAIT)—allocated memory is owned by the current process, and gets freed when that process terminates. Note that some versions of the memory manager source code (ALLOC.ASM) include a comment that says ‘Created: ARR 30 March 1983’. That cannot possibly be true because by the end of March 1983, PC DOS 2.0 was already released, and included the memory management support. The DOS 2.0 memory management functions were already documented in the PC DOS 2.0 manual dated January 1983.