Requirements: Physical Organization Cannot leave the programmer with the responsibility to manage memory Memory available for a program plus its data may be insufficient Programmer does not know how much space will be available The task of moving information between the two levels of memory should be a system responsibility 1010 Requirements: Physical Organization • Cannot leave the programmer with the responsibility to manage memory – Memory available for a program plus its data may be insufficient – Programmer does not know how much space will be available • The task of moving information between the two levels of memory should be a system responsibility