a number that designates a particular memory location:.
a main memory allocation scheme that considers all free blocks and selects for allocation the one that will result in the least amount of wasted space:.
a register used to store the highest location in memory legally accessible by each program:.
the process of collecting fragments of available memory space into contiguous blocks by moving programs and data in a computer's memory or disk. Also called "garbage collection":.
the process of freeing an allocated resource, whether memory space, a device, a file, or a CPU:.
a memory allocation scheme in which jobs are given as much memory as they request when they are loaded for processing thus creating their own partitions in main memory:.
a situation in which thet dynamic allocation of memory creates unusable fragments of free memory between blocks of busy, or allocated memory:.
a nonpreemptive process scheduling policy that handles jobs according to their arrival time; the first job in the READY queue is processed first:.
a main memory allocation scheme that searches from beginning of the free block list and selects for allocation the first block of memory large enough to fulfill the request:.
a memory allocation scheme in which main memory is sectioned off, with portions assigned to each job:.
a situation in which a fixed partition is only partially used by the program; the remaining space within the partition is unavailable to any other job and is therefore wasted:.
a unit of memory or storage space equal to 1,024 bytes:.
the unit that works directly with the CPU and in which the data and instructions must reside in order to be processed. Also called RAM:.
an empty entry in a list:.
a memory allocation scheme in which the system relocates programs in memory to gather together all of the empty blocks and compact them to make one block of memory that's large enough to accommodate some or all of the jobs waiting for memory:.
the process of moving a program from one area of memory to another:.
the process of adjusting address references in a program, by either software or hardware means, to allow the program to execute correctly when loaded in different sections of memory:.
a register that contains the value that must be added to each address referenced in the program so that it will be able to access the correct memory addresses after relocation:.
another term for "fixed partitions":.
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