What is Mac OS in Computer | Macintosh OS

What is Mac OS in Computer What is Mac OS in Computer | Macintosh OS Versions of Macintosh OS / Mac Os Design concept Of Mac OS





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What is Mac OS in Computer | Macintosh OS 


macOS is a series of graphical operating systems developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac family of computers. Within the market of desktop, laptop, and home computers, and by web usage, it is the second most widely used desktop OS, after Microsoft Windows. 

What is Mac OS in Computer


Latest release: 10.14.3 
Developer: Apple Inc.
Latest preview: 10.14.4 beta 5 
Initial release date: 24 March 2001
Written in: C++, Objective-C, Swift

What Mac OS?


Mac OS is a series of the graphical user interface–based operating systems developed by Apple Inc. for their Mac line of computer systems.

What is Mac OS in Computer



The original operating system was first introduced in 1984 as being integral to the original Macintosh, and referred to as the "System". Referred to by its major revision starting with "System 6" and "System 7", Apple rebranded version 7.6 as "Mac OS" as part of their Macintosh clone program in 1996. The Macintosh, specifically its system software, is credited with having popularized the early graphical user interface concept.

There are two architectural legacies of Mac OS. Up to major revision 9, from 1984 to 2000, it is historically known as Classic Mac OS. Major revision 10, from 2001 to present, was originally branded "Mac OS X", renamed to "OS X" in 2012, and announced to be renamed to "macOS" in the upcoming version macOS Sierra. Both legacies share a general interface design, and there has been some overlap of application frameworks compatibility, but the two systems have different origins and use deeply different architectures.

Design concept Of Mac OS


Apple's original concept for the Macintosh deliberately sought to minimize the user's conceptual awareness of the operating system. Many basic tasks that had required more operating system knowledge on other systems could then be accomplished by mouse gestures and graphic controls on a Macintosh. This would differentiate it from its contemporaries such as MS-DOS, which use a command-line interface consisting of tersely abbreviated textual commands.
The core of the system software of early Macintoshes is held in ROM, with updates originally provided on floppy disk, freely copyable at Apple dealers. The user's involvement in an upgrade of the operating system is also minimized to running an installer or replacing system files using the file manager.


Versions of Macintosh OS / Mac Os

What is Mac OS in Computer


Early versions of Mac OS are compatible only with Motorola 68000-family Macintoshes. As Apple introduced computers with PowerPC hardware, the OS was ported to support this architecture. Mac OS 8.1 is the last version that could run on a "68K" processor (the 68040). OS X, which has superseded the "Classic" Mac OS, is compatible with only PowerPC processors from version 10.0 ("Cheetah") to version 10.3 ("Panther"). Both PowerPC and Intel processors are supported in version 10.4 ("Tiger", Intel only supported after an update) and version 10.5 ("Leopard"). 10.6 and later versions support only Intel processors

The early Macintosh operating system consists of two user-visible components, called "System" and "Finder", each with its own version number. Starting with version 5, both are incorporated under a single "System Software" moniker. System 7.5.1 is the first to include the Mac OS logo (a variation on the original Happy Mac startup icon), and Mac OS 7.6 is the first to be named "Mac OS". These changes were made during the era of Macintosh clones, to disassociate the operating system from Apple's own Macintosh models.

What is Mac OS in Computer


In systems prior to PowerPC G3-based systems, significant parts of the system are stored in physical ROM on the motherboard. The initial purpose of this is to avoid using up the limited storage of floppy disks on system support, given that the early Macs have no hard disk (only one model of Mac was ever actually bootable using the ROM alone, the 1991 Mac Classic model). This architecture also allows for a completely graphical OS interface at the lowest level without the need for a text-only console or command-line mode: boot time errors, such as finding no functioning disk drives, are communicated to the user graphically, usually with an icon or the distinctive Chicago bitmap font and a Chime of Death or a series of beeps. 

This is in contrast to MS-DOS and CP/M computers of the time, which display such messages in a mono-spaced font on a black background and require the use of the keyboard rather than a mouse, for input. To provide such niceties at a low level, early Mac OS depends on core system software in ROM on the motherboard, which also ensures that only Apple computers or licensed clones (with the copyright-protected ROMs from Apple) can run Mac OS.


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NEtechy: What is Mac OS in Computer | Macintosh OS
What is Mac OS in Computer | Macintosh OS
What is Mac OS in Computer What is Mac OS in Computer | Macintosh OS Versions of Macintosh OS / Mac Os Design concept Of Mac OS
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