| | Mac OS (Site not responding. Last check: ) |
 | | Mac OS 7.5 was the first to be named Mac OS because of the appearance of Mac "clones", workalikes from other companies such as Power Computing and Motorola, and Apple wanted to make it clear that the operating system was its own intellectual property. |
 | | It is also the second Mac OS to include a command line (the first is the now-discontinued A/UX, which supported classic Mac OS applications on top of a UNIX kernel), although it is never seen unless the user launches a "terminal" program. |
 | | It is worth noting that the kernel of Mac OS X, Darwin, while not a reincarnation of Star Trek, runs on both x86 and PowerPC architectures, as have internal builds of Mac OS X Apple has been developing (in secret until June 2005 and openly since). |
| www.worldhistory.com /wiki/M/Mac-OS.htm (1649 words) |