hard drive

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MPEG-4 compression technology provides efficient use of hard-drive capacity, and users can set the recording resolution for each camera.
MPEG-4压缩技术提高了硬盘容量的利用率，用户可以为每个摄像头设置记录分辨率。
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At the moment companies have to back up their archives every five to ten years because hard-drive memory has a relatively short lifespan.‘Museums
我们都知道由于硬盘寿命相对较短，当前的公司不得不每5到10年进行档案备份。
Chrome OS is designed primarily to work with applications such as e-mail, word-processors, calendars and the like that are stored in the cloud rather than on a user’s hard-drive.
Chrome OS本是为下列应用设计的，如电邮、文字处理软件、日历，及存储在云内而非用户硬盘上的一类应用。

And this is because as you start writing--saving files to your hard drive, what happens is you might save this file here, then this one, then this one, then this one, but very reasonably you might go back eventually and delete this one.
这是因为当你开始对硬盘驱动器进行读写时,你可以保存一个文件到磁盘的某处，然后再一个，再一个，又一个，最后你可能回到这,并删除这一个文件。
哈佛公开课 - 计算机科学课程节选
But what's amazing is that the hard drives we have today in a desktop or in a laptop, a hard drive and a laptop is only about--yey big!
现在你可能对在笔记本或者,台式机中存在的硬盘更感兴趣，其实硬盘仅仅是容量大了一些！
哈佛公开课 - 计算机科学课程节选
Instead of hard labor to go get food all it requiresis a little drive-in to the window.
和先前辛苦劳作以获取食物不一样,取而代之的是,免下车餐厅
耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

PC's hard-drive is a mere four megabytes instead of the 40-50 megabytes of the uncompressed version.
ECONOMIST: Roll your own CDs

a part of a computer that reads information on a hard disk, or a separate device that can be connected to a computer in order to do this

A computer's hard drive is its hard disk, or the part that contains and operates the hard disk, which is used for storing and retrieving data.