HMA

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HMA

‘Her Majesty's Advocate’. Prosecutions in Scotland on indictment are raised thus: HMAv. MacPhee. For England see R.
Collins Dictionary of Law © W.J. Stewart, 2006
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This block of memory is special because HIMEM.SYS, by toggling an address line on and off, can use these 65,520 bytes of memory without shifting into protected mode.(1) Best of all, once HIMEM.SYS has been loaded, we can free up about 47,000 bytes of conventional memory by loading DOS into the High Memory Area.
The first 64K of extended memory is the High Memory Area (HMA).
One is by relocating most of DOS itself into the High Memory Area (HMA).