文章
UNIX
A family of multi-user operating systems, first developed by AT&T Bell Laboratories in the...
UPSUninterruptible Power Supply , UPS keeps the server running on a battery for several minutes...
URLUniform Resource Locator , A string that supplies the Internet address of a resource on the World...
USENETA world-wide system of discussion groups, with comments passed among hundreds of thousands of...
UUENCODEUnix to Unix Encoding , A method for converting files from Binary to ASCII (text) so that they...