I would say no. It really depends on how you define "major", but by the time the first Apple Macintosh was released in 1984 we already had the IBM PC, Apple II, and machines by Commodore, Acorn, Sinclair and others. All of these count as microcomputers (the next category up, the minicomputer, would have been more like the size of a refrigerator) and some of them were bestsellers for their time.
By the way, it doesn't make sense to call the Mac OS a computer. It's an operating system, i.e. just the software.
DOS
sex
Mac OS Leopard
The Mac OS was designed by Apple as the operating system for their Macintosh range of computers. The first Mac OS, originally known as System Software, was introduced with the first Macintosh in 1984. Over the years the original Mac OS was developed, improved and expanded until Mac OS 9 in 2001. For version 10 Apple reworked the Mac OS around a UNIX core and this is known as Mac OS X.
Mac OS X. Why? First off, we have to consider our options. The major players are: Windows, Mac OS, and Linux/Unix Mac OS is the best because: - Support for automation (Automator/AppleScript) which is essential - Better hardware all-around - Nice functional GUI (comparable to Windows) - Ability to run all major OS via virtualization - UNIX root - Tools support is not bad (Xcode) In essence, Mac OS is like Windows + Linux/Unix.
Mac OS is the first operating system developed in the year 1955
booting
Mac OS X is one of the major releases of operating systems from Apple Inc. It features a low level Mach_kernel, underlying Unix OS, a 3D graphical user interface. Mac OS X can only be installed on computers made by Apple Inc. Recent versions of Mac OS X include: Mac OS X 10.3 Panther, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard. Starting in Mac OS 10.5 an automatic backup utility called Time Machine is available. The current version is Mac OS X 10.10 and an early release version of Mac OS X 10.11 is available to install.
I have a Mac OS X but I know Mac OS is a computer made by the brand/company, Apple.
Windows XP,Vista, 7, and Mac Os.
You cannot without erasing your hard drive and installing Mac OS 9 from scratch. Even then Mac OS 9 may not run on modern Mac hardware because Mac OS 9 needs the ROM chip to boot. Modern Mac OS X hardware uses EFI to boot the system instead of a ROM chip to boot. Mac OS X v10.0 - Mac OS X v10.4 support Mac OS 9 applications and can run them, you just need to install the Mac OS 9 compatibility program which can be found on the Mac OS X Install CD.
The second name of Mac OS X v10.4.5 is Mac OS X v10.4 Intel.Mac OS X 10.4 was known as Mac OS X Tiger.