大量的學(xué)校、企業(yè)、工廠、家庭、個(gè)人電腦、筆記本、電子數(shù)碼產(chǎn)品已經(jīng)回收多年,在家里也可以快速回收。
隨機(jī)存取
所謂“隨機(jī)存取”是指在讀取或?qū)懭氪鎯?chǔ)器中的數(shù)據(jù)時(shí),所需的時(shí)間與信息所在的位置或?qū)懭氲奈恢脽o關(guān)。相反,當(dāng)在順序存取存儲(chǔ)設(shè)備中讀取或?qū)懭胄畔r(shí),所需的時(shí)間與位置有關(guān)。它主要用于存儲(chǔ)操作系統(tǒng)、各種應(yīng)用程序、數(shù)據(jù)等。
當(dāng)RAM正常工作時(shí),可以從RAM中讀取數(shù)據(jù)或向其中寫入數(shù)據(jù)。與ROM相比,RAM具有讀寫方便、使用靈活的優(yōu)點(diǎn),特別適合頻繁、快速的數(shù)據(jù)替換。
在計(jì)算機(jī)的結(jié)構(gòu)中,有一個(gè)非常重要的部分,那就是內(nèi)存。內(nèi)存是用來存儲(chǔ)程序和數(shù)據(jù)的部件。
就電腦而言,有了內(nèi)存,就有了保證正常工作的記憶功能。
記憶棒是指主板上的存儲(chǔ)部件,是CPU直接與之通信并用來存儲(chǔ)數(shù)據(jù)的部件,存儲(chǔ)當(dāng)前正在使用(即正在執(zhí)行)的數(shù)據(jù)和程序。其物理本質(zhì)是一組或多組具有數(shù)據(jù)輸入/輸出和數(shù)據(jù)存儲(chǔ)功能的集成電路。內(nèi)存只是用來暫時(shí)存儲(chǔ)程序和數(shù)據(jù),一旦斷電或停電,里面的程序和數(shù)據(jù)就會(huì)丟失。
Static storage unit is formed by adding gate control on the basis of static trigger. Therefore, it stores data by the self-protection function of the trigger. The information stored in SRAM can be kept for a long time without power failure, and the state is stable, so the external circuit design is simplified. However, because the basic storage circuit of SRAM contains many transistors, the integration level is low and the power consumption is high.
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