base memory

(hardware, jargon)The lowest 640 kilobytes of memory in anIBM PC-compatible computer running MS-DOS. Other PCoperating systems can usually compensate and "ignore" thefact that there is a 640K limit to base memory. This was putin place because the original CPU - the Intel 8088 - couldonly access one megabyte of memory, and IBM wanted toreserve the upper 384KB for device drivers. The high memory area (HMA) lies above 640KB and can be accessed onMS-DOS computers that have an A20 handler.

base memory

The amount of RAM that comes with each model of a particular computer. The base memory can usually be upgraded to a significantly higher amount. For example, a desktop machine with 256MB might be upgradable to 1GB.

单词	base memory
释义	base memory base memory (hardware, jargon)The lowest 640 kilobytes of memory in anIBM PC-compatible computer running MS-DOS. Other PCoperating systems can usually compensate and "ignore" thefact that there is a 640K limit to base memory. This was putin place because the original CPU - the Intel 8088 - couldonly access one megabyte of memory, and IBM wanted toreserve the upper 384KB for device drivers. The high memory area (HMA) lies above 640KB and can be accessed onMS-DOS computers that have an A20 handler. base memory The amount of RAM that comes with each model of a particular computer. The base memory can usually be upgraded to a significantly higher amount. For example, a desktop machine with 256MB might be upgradable to 1GB.
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