Nearly all traditional UNIX operating systems report the size in 512 byte blocks rather than kilobytes by default.
缺省情况下，几乎所有传统的 UNIX 操作系统都以 512 字节块为单位报告大小，而不是千字节。
2
Android became the No. 1 operating system for U.S. smartphones in the second quarter, according to a report last month by industry tracker NPD.
上月据NPD（新产品开发）的行业追踪报道，Android成为第二季度美国第一大智能手机操作系统。
3
"What is surprising is that many of these products are not utilizing Intel microprocessors or a Microsoft operating environment," wrote Goldman Sachs analyst Bill Shope, in a report published Sunday.