An execution mode supported
by the Intel 80286 and later processors
. In real mode, these processors imitate the Intel 8088 and 8086 microprocessors
, although they run
much faster. The other mode available is called protected mode
. In protected mode, programs
can access extended memory
and virtual memory
. Protected mode also supports multitasking
. The 80386 and later microprocessors support a third mode called virtual 8086 mode.
In virtual mode, these microprocessors can run several real-mode programs at once.
The DOS operating system was not designed to take advantage of protected mode, so it always executes programs in real mode unless a protected mode extender is run first.
TECH RESOURCES FROM OUR PARTNERS