推荐回答(5个)
因为固态硬盘不用磁头,快速随机读取,读延迟极小。由于寻址时间与数据存储位置无关,因此磁盘碎片不会影响读取时间。还有他自身结构和机械硬盘也不相同,因此,固态硬盘的读取速度比机械硬盘的速度快
固态跟机械
主要的速度
是差在寻道速度上
固态不用寻道
直接找到地址然后找到数据
机械的就要
移动磁头来找到正确的块
这个速度就差了很多
其次
介质不同
机械的是磁性转换的
根据磁的排列转换成信号来读出数据
写入也是一样
固态的直接用闪存
意思就跟集成电路一样
读取跟写入是直接采用电信号
不需要转换
直接采用电信号的自然比转换的快(不然内存条为什么要用闪存芯片呢)
机械要一个转换过程而且还要寻道
固态不用
固态直接找到地址写入
自然快多了
机械好的一特点
可以恢复数据
固态一般删掉了恢复的可能性很小
启动快,没有电机加速旋转的过程。
不用磁头,快速随机读取,读延迟极小。
相对固定的读取时间。由于寻址时间与数据存储位置无关,因此磁盘碎片不会影响读取时间。
基于DRAM的固态硬盘写入速度极快。
纯固态硬盘,就是固态硬盘,不是混合。
1、所谓混合硬盘,就是在普通的机械硬盘里,加了一个非常小容量的固态硬盘。只能做缓存使用,所以,只能加速启动系统,对软件和游戏没加速。混合硬盘,本质上还是机械硬盘。
2、纯固态硬盘,就是毫无机械硬盘的部分,只有固态。对系统启动,软件和游戏都有加速。当然,前提是这些都装在固态硬盘里面。
1,存取速度其实并不很快,主要是稳定。尤其是相应时间一般都是0.1MS,普通的都是15MS左右。
2,稳定,不像一般硬盘容易损坏,工作的时候怕震动
其他都差不多。
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