為了加強數據的保護，防止非法的存取，用於評價計算機系統、存儲空間和運行過程完整程度的一種指標。
A term applied to a computer system, spaces, or operating procedures when considering the protection of data from corruption or unauthorized access.
一種能動態重新安排存儲器的處理技術，即把各連續已用的存儲段移到存儲器的一端，把未使用的存儲空間集中到存儲器的另一端。
A process of dynamic relocation in which contiguous segments are moved to one end of the memory to combine all unused storage at the other end.
把數據元放入各個字中的相鄰二進位位上，從而能最大限度地利用存儲空間的處理方法或過程。
The process of making the most effective use of storage by placing data elements into contiguous bit positions of words.
