UMB
Short for upper memory block, a block of memory in the DOS upper memory area (UMA). UMBs are allocated and managed by a special memory manager such as EMM386.EXE, and can be used for TSRs and device drivers.
Short for upper memory block, a block of memory in the DOS upper memory area (UMA). UMBs are allocated and managed by a special memory manager such as EMM386.EXE, and can be used for TSRs and device drivers.