conventional memory

conventional memory
   The amount of memory accessible by MS-DOS in PCs using an Intel processor operating in real mode; normally the first 640KB.
   The designers of the original IBM PC made 640KB available to the operating system and applications and reserved the remaining space for internal system use, the BIOS, and video buffers. Although 640KB may not seem like much memory space now, it was ten times the amount of memory available in other leading personal computers available at the time. Since then, applications have increased in size to the point that 640KB is inadequate.

Dictionary of networking . 2014.

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  • Conventional memory — Memory areas of the IBM PC family. In DOS memory management, conventional memory, also called base memory, is the first 640 kilobytes (640 × 1024 bytes) of the memory on IBM PC or compatible systems. It is the read write memory usable by the… …   Wikipedia

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