Is the "Power On" mode of the Intel 80x86 processors in which the processor emulates the 8086 and 8088 microprocessors. Real Mode has no memory protection and the maximum amount of physical address space is 1 MB.
CPU mode in which applications have direct access to the physical memory of the computer.
A single-tasking operating mode whereby a program has 1024K of memory addresses, has direct access to RAM, and uses a16-bit data path. Using a memory extender (Himem.sys) a program in real mode can access memory above 1024K. Also called 16-bit mode.