"extended memory" meaning in English

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  "lang_code": "en",
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        "The extent of memory above the first megabyte in the address space of later PCs"
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          "address space",
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        "(computing) The extent of memory above the first megabyte in the address space of later PCs"
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  "lang_code": "en",
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        "The extent of memory above the first megabyte in the address space of later PCs"
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          "memory",
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        "(computing) The extent of memory above the first megabyte in the address space of later PCs"
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