In a partitioned memory environment, the single boundary register is replaced by the

base, limit

and

registers which delimit the upper and lower boundaries of a partition, respectively.

limit$,$ base

high, low

low, high in single$-$user contiguous memory allocation systems to prevent programs from damaging the operating system's memory.

lock

protection bit

boundary register

semaphore

In a partitioned memory environment, the single boundary register is replaced by the

and

registers which delimit the upper and lower boundaries of a partition, respectively.

base, limit

limit$,$ base

high, low

low, high

In a partitioned memory environment, the single boundary register is replaced by the

base, limit

and

registers which delimit the upper and lower boundaries of a partition, respectively.

limit$,$ base

high, low

low, high