background partition(BG)

1. In a computer system, a region of internal storage.; 在計算機系統中,內存的一部分區域［存儲空間］。 2. In an operating system, such as IBM VSE, a space of virtual storage in which programs are executed under control of the system. By default, the partition has a processing priority lower than any of the existing foreground partitions. | 在操作系統，如IBM的虛存擴充系統(VSE)中,虛存里的一部分存儲空間,在操作系統的控 制下,可以在其中執行種種程序,根據系統的設定,后臺分區處理程序的優先級低于任何現有 前臺分區。