以下有关SSD,描述错误的是( )。
- A.SSD是用固态电子存储芯片阵列而制成的硬盘,由控制单元和存储单元(FLASH芯片、DRAM芯片)组成
- B.SSD固态硬盘最大的缺点就是不可以移动,而且数据保护受电源控制,不能适应于各种环境
- C.SSD的接口规范和定义、功能及使用方法与普通硬盘完全相同
- D.SSD具有擦写次数的限制,闪存完全擦写一次叫作1次P/E,其寿命以P/E作单位
正确答案及解析
正确答案
解析
固态硬盘SSD,也称作电子硬盘或者固态电子盘,是由控制单元和固态存储单元(DRAM或FLASH芯片)组成的硬盘,闪存完全擦写一次叫作1次P/E,因此闪存的寿命就以P/E作单位。固态硬盘的接口规范和定义、功能及使用方法上与普通硬盘的相同,在产品外形和尺寸上也与普通硬盘一致。由于固态硬盘没有普通硬盘的旋转介质,因而抗震性极佳。其芯片的工作温度范围很宽(-40~85摄氏度)。目前广泛应用于军事、车载、工控、视频监控、网络监控、网络终端、电力、医疗、航空等、导航设备等领域。目前由于成本较高,正在逐渐普及到DIY市场。
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