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The Xerox Operating System (XOS) was an operating system for the XDS Sigma series of computers "optimized for direct replacement of IBM DOS/360 installations" and to provide real-time and timesharing support. [1] The system was developed, beginning in 1969, for Xerox by the French firm CII (now Bull). [2]
A client MacBook Air (lacking an optical drive) could then wirelessly connect to the other Mac or PC to perform system software installs. Remote Install Mac OS X was released as part of Mac OS X 10.5.2 on February 12, 2008. Support for the Mac mini was added in March 2009, allowing the DVD drive to be replaced with a second hard drive.
Xerox was founded in 1906 in Rochester, New York, as the Haloid Photographic Company. [11] It manufactured photographic paper and equipment. In 1938, Chester Carlson, a physicist working independently, invented a process for printing images using an electrically charged photoconductor-coated metal plate [12] and dry powder "toner".
There were multiple betas released after the keynote. OS X El Capitan was released to end users on September 30, 2015, as a free upgrade through the Mac App Store. [6] OS X El Capitan is the final version of OS X to support aluminum Macs and Xserve, as its successor macOS Sierra is incompatible with the mid-2007 and final models of these products.
macOS Sierra (version 10.12) [4] is the thirteenth major release of macOS (formerly known as OS X and Mac OS X), Apple Inc.'s desktop and server operating system for Macintosh computers. The name "macOS" stems from the intention to unify the operating system's name with that of iOS, watchOS and tvOS.
Mac OS X 10.4 Tiger removed support for older New World ROM Macs such as the original iMacs and iBooks that were supported in Mac OS X 10.3 Panther; however it is possible to install Mac OS X 10.4 Tiger on these Macs using third-party software (such as XPostFacto) that overrides the checks made at the beginning of the installation process.
The menu bar was a new and revolutionary part of the OS. [citation needed] Similar to the one found on Lisa OS, the System 1 Finder had five menus: the Apple menu, File, Edit, View, and Special. When in an application, the menus would change to ones defined by the application, but most software retained at least the File and Edit menus. [4]
The classic Mac OS is the original Macintosh operating system introduced in 1984 alongside the first Macintosh and remained in primary use on Macs until Mac OS X in 2001. [ 6 ] [ 7 ] Apple released the original Macintosh on January 24, 1984; its early system software is partially based on Lisa OS , and inspired by the Alto computer, which ...