A virtual storage system which moves dynamically pages／segments between primary and secondary storage to meet the changing needs of executing processes.; 一種虛擬存儲系統(tǒng),為滿足改變執(zhí)行進(jìn)程的需要,在主存儲器和輔存儲器之間動態(tài)地移動 存儲頁面存儲段。