The first copy (see Figure 1) is performed by the direct memory access (DMA) engine, which reads file contents from the disk and stores them into a kernel address space buffer.
直接内存存取(direct memory access,DMA)引擎执行了第一次拷贝(参见图1)，它从磁盘中读取文件内容，然后将它们存储到一个内核地址空间缓存区中。
Information allowing direct access to the activity of the company, organisation or person, in particular a domain name or an electronic-mail address, and.
信息可直接进入该活动的公司，组织或人士，尤其是一个域名或电子邮箱地址。
An address written on a direct access volume, denoting a track's address relative to the beginning of the volume.
记录在直接存取盘卷上的地址，表明相对于盘卷始址的一个磁道地址。
An address written on a direct access volume, denoting a track's address relative to the beginning of the volume.
记录在直接存取盘卷上的地址，表明相对于盘卷始址的一个磁道地址。
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