多年來，大量的學校，企業，工廠，家庭，個人電腦，筆記本，電子數碼產品，回收價格，快速上門回收。

　　現代隨機存取存儲器依靠電容器來存儲數據。因為電容或多或少會漏電，如果不做特殊處理，隨著時間的推移，數據會逐漸丟失。刷新就是讀取電容的狀態，然后按照原來的狀態給電容充電，彌補失去的電荷。刷新的需要正好解釋了隨機存取存儲器的易失性。

　　random access

　　The so-called "random access" means that when the data in the memory is read or written, the time required has nothing to do with the location where the information is located or the location where it is written. On the contrary, when reading or writing information in a Sequential Access storage device, the time required is related to the location. It is mainly used to store the operating system, various applications, data and so on.

　　When the RAM is in normal operation, data can be read from or written into the RAM. Compared with ROM, RAM has the advantages of convenient reading/writing and flexible use, which is especially suitable for frequent and rapid data replacement.

　　波動性

　　當電源關閉時，RAM無法保存數據。如果需要保存數據，必須將數據寫入長期存儲設備(如硬盤)。

　　RAM的工作特點是上電后可以隨時訪問任意位置單元的數據和信息，斷電后內部信息消失。

　　在計算機中，RAM和ROM都是數據存儲器。RAM是一種隨機存取存儲器，它的特點是易失性，即掉電和失憶。

　　ROM通常是指固化的內存(一次寫入，多次讀取)，其特性與RAM相反。比如文件因突然斷電或未保存而關閉，ROM可以隨機保存之前未保存的文件，但RAM會讓之前未保存的文件消失。

　　我們承諾:將回收的服務器和電腦硬盤全部格式化，讓您的數據更放心，不泄露。