Berkeley Software Design
（重定向自BSDI）
Berkeley Software Design Inc. (BSDI or, later, BSDi) was a corporation which developed, sold licenses for, and supported BSD/OS (originally known as BSD/386), a commercial and partially proprietary variant of the BSD Unix operating system for PC compatible (and later, other) computer systems. The name was chosen for its similarity to "Berkeley Software Distribution" the source of its primary product (specifically 4.3BSD Networking Release 2).