what is mac OS? 

well Mac OS is the trademarked name for a series of graphical user interface-based operating systems developed by Apple Inc. (formerly Apple Computer, Inc.) for their Macintosh line of computer systems. The Macintosh user experience is credited with popularizing the graphical user interface. The original form of what Apple would later name the "Mac OS" was the integral and unnamed system software first introduced in 1984 with the original Macintosh, usually referred to simply as the System software.

Apple deliberately downplayed the existence of the operating system in the early years of the Macintosh to help make the machine appear more user-friendly and to distance it from other operating systems such as MS-DOS, which were portrayed as arcane and technically challenging. Much of this early system software was held in ROM, with updates typically provided free of charge by Apple dealers on floppy disk. As increasing disk storage capacity and performance gradually eliminated the need for fixing much of an advanced GUI operating system in ROM, Apple explored cloning while positioning major operating system upgrades as separate revenue-generating products, first with System 7 and System 7.5, then with Mac OS 7.6 in 1997.

Earlier versions of the Mac OS were compatible only with Motorola 68000-based Macintoshes. As Apple introduced computers with PowerPC hardware, the OS was upgraded to support this architecture as well. Mac OS X, which has superseded the "Classic" Mac OS, is compatible with both PowerPC and Intel processors.

source site http://en.wikipedia.org/wiki/Mac_OS

Answered by sanjay at 4:48 PM on May 23, 2008

well;
Mac OS X, I have had a few discussions with people who are curious about Apple and Mac OS X, but have not used the platform. Often, what they think is a somewhat distorted, perhaps even incorrect version of the "truth": there are many areas in which they think the Mac is worse or better than it really is. Consider (with colloquialisms preserved):

* Macs are good only for graphics/media work.
* Macs suck for hackers.
* There is very little software for the Mac.
* Macs are overpriced/not worth the price.
* Mac OS X is Unix.
* Mac OS X is not Unix.
* Mac OS X rocks. Linux is crap.
* Mac OS X is crap. Linux rocks.

Answered by kishore at 8:40 AM on May 22, 2008

well blogger01, Mac OS is the trademarked name for a series of graphical user interface-based operating systems developed by Apple Inc. (formerly Apple Computer, Inc.) for their Macintosh line of computer systems. The Macintosh user experience is credited with popularizing the graphical user interface. The original form of what Apple would later name the "Mac OS" was the integral and unnamed system software first introduced in 1984 with the original Macintosh, usually referred to simply as the System software. Apple deliberately downplayed the existence of the operating system in the early years of the Macintosh to help make the machine appear more user-friendly and to distance it from other operating systems such as MS-DOS, which were portrayed as arcane and technically challenging. Much of this early system software was held in ROM, with updates typically provided free of charge by Apple dealers on floppy disk. As increasing disk storage capacity and performance gradually eliminated the need for fixing much of an advanced GUI operating system in ROM.

Answered by Romi at 7:05 PM on May 21, 2008

Mac OS X, I have had a few discussions with people who are curious about Apple and Mac OS X, but have not used the platform. Often, what they think is a somewhat distorted, perhaps even incorrect version of the "truth": there are many areas in which they think the Mac is worse or better than it really is. Consider (with colloquialisms preserved):

* Macs are good only for graphics/media work.
* Macs suck for hackers.
* There is very little software for the Mac.
* Macs are overpriced/not worth the price.
* Mac OS X is Unix.
* Mac OS X is not Unix.
* Mac OS X rocks. Linux is crap.
* Mac OS X is crap. Linux rocks.

Answered by Om Prakash at 7:24 PM on May 20, 2008

Mac OS is the original primary operating system of Apple Computer's line of personal computers.The first version was released with the original "Thin" Macintosh (i.e., the Macintosh 128K) in 1984, and until the release of Mac OS X, Mac OS remained Apple's flagship operating system.

Mac OS is characterized by a user-friendly graphical user interface (GUI), single-button mousing, and nearly universal plug-and-play support. In the spring of 2001, Apple transitioned from its original code base to Mac OS X, a very different operating system based on Unix and the Mach microkernel. Like its predecessor, Mac OS X maintains the traditional Mac OS ease of use, but with substantially improved stability.

Answered by Shobhit at 6:29 PM on May 20, 2008

Mac OS is the original primary operating system of Apple Computer's line of personal computers. The first version was released with the original "Thin" Macintosh (i.e., the Macintosh 128K) in 1984, and until the release of Mac OS X, Mac OS remained Apple's flagship operating system. Mac OS is characterized by a user-friendly graphical user interface (GUI), single-button mousing, and nearly universal plug-and-play support. In the spring of 2001, Apple transitioned from its original code base to Mac OS X, a very different operating system based on Unix and the Mach microkernel. Like its predecessor, Mac OS X maintains the traditional Mac OS ease of use, but with substantially improved stability.

Answered by Sharad Singh at 4:13 PM on May 20, 2008

Mac OS is the original primary operating system of Apple Computer's line of personal computers.Mac OS is characterized by a user-friendly graphical user interface (GUI), single-button mousing, and nearly universal plug-and-play support. In the spring of 2001, Apple transitioned from its original code base to Mac OS X, a very different operating system based on Unix and the Mach microkernel. Like its predecessor, Mac OS X maintains the traditional Mac OS ease of use, but with substantially improved stability.

Answered by jaivir at 4:04 PM on May 20, 2008

macintosh operating system is the operating system that runs on machines built by apple computer

Answered by Nishu's at 4:00 PM on May 20, 2008

hi Mac OS is the trademarked name for a series of graphical user interface-based operating systems developed by Apple Inc. (formerly Apple Computer, Inc.) for their Macintosh line of computer systems. The Macintosh user experience is credited with popularizing the graphical user interface. The original form of what Apple would later name the "Mac OS" was the integral and unnamed system software first introduced in 1984 with the original Macintosh, usually referred to simply as the System software.

Apple deliberately downplayed the existence of the operating system in the early years of the Macintosh to help make the machine appear more user-friendly and to distance it from other operating systems such as MS-DOS, which were portrayed as arcane and technically challenging. Much of this early system software was held in ROM, with updates typically provided free of charge by Apple dealers on floppy disk. As increasing disk storage capacity and performance gradually eliminated the need for fixing much of an advanced GUI operating system in ROM, Apple explored cloning while positioning major operating system upgrades as separate revenue-generating products, first with System 7 and System 7.5, then with Mac OS 7.6 in 1997.

Earlier versions of the Mac OS were compatible only with Motorola 68000-based Macintoshes. As Apple introduced computers with PowerPC hardware, the OS was upgraded to support this architecture as well. Mac OS X, which has superseded the "Classic" Mac OS, is compatible with both PowerPC and Intel processors
this is taken from source http://en.wikipedia.org/wiki/Mac_OS

Answered by laks at 2:54 PM on May 20, 2008

well,Media Access Control address, a hardware address that uniquely identifies each node of a network. In IEEE 802 networks, the Data Link Control (DLC) layer of the OSI Reference Model is divided into two sublayers: the Logical Link Control (LLC) layer and the Media Access Control (MAC) layer. The MAC layer interfaces directly with the network medium. Consequently, each different type of network medium requires a different MAC layer.

Answered by satyaiitk at 1:53 PM on May 20, 2008