相对於 RAM, Primary storage 的东西，都算 Secondary storage From Wikipedia, the free encyclopedia Jump to: navigation, search In computer storage, secondary storage, or external memory, is computer memory that is not directly accessible to the central processing unit of a computer, requiring the use of computer's input/output channels. Secondary storage is used to store data that is not in active use. Secondary storage is usually slower than primary storage, or internal memory, but also almost always has higher storage capacity and is non-volatile, which makes it perfect for the preservation of stored information in an event of power loss. Storage devices in this category include: CD, CD-R, CD-RW DVD Flash memory Floppy disk Zip Drive Hard disk drive Magnetic tape Paper tape Punch card RAM disk External Hard Drive Blu-Ray ※ 引述《[email protected] (㊣阿多巴可安德尔 XD)》之铭言： : ※ 引述《[email protected] (godfat 真常)》之铭言： : > 第二个储存装置是指什麽？ : 磁鼓。 XD : http://davidguy.brinkster.net/computer/022.html : 　 --

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