What type of memory is not directly addressable by the CPU and requires special software called EMS(expanded memory specification)?
Expanded type of memory is not directly addressable by the CPU and requires special software called EMS(expanded memory specification).
In DOS memory management, expanded memory is a system of bank switching that provided additional memory to DOS programs beyond the limit of conventional memory (640 KB). Expanded memory is an umbrella term for several incompatible technology variants.
In DOS memory management, extended memory refers to memory above the first megabyte (220 bytes) of address space in an IBM PC or compatible with an 80286 or later processor. The term is mainly used under the DOS and Windows operating systems.