MOS meaning in Computing ?

Answer:

What is Macintosh Operating System mean?

The family of Macintosh operating systems developed by Apple Inc. includes the graphical user interface-based operating systems it has designed for use with its Macintosh series of personal computers since 1984, as well as the related system software it once created for compatible third-party systems.

In 1984, Apple debuted the operating system that is now known as the "Classic" Mac OS with its release of the original Macintosh System Software. The system, rebranded "Mac OS" in 1996, was preinstalled on every Macintosh until 2002 and offered on Macintosh clones for a short time in the 1990s. Noted for its ease of use, it was also criticized for its lack of modern technologies compared to its competitors.

The current Mac operating system is macOS, originally named "Mac OS X" until 2012 and then "OS X" until 2016. Developed between 1997 and 2001 after Apple's purchase of NeXT, Mac OS X brought an entirely new architecture based on NeXTSTEP, a Unix system, that eliminated many of the technical challenges that the classic Mac OS faced. The current macOS is preinstalled with every Mac and is updated annually. It is the basis of Apple's current system software for its other devices – iOS, iPadOS, watchOS, and tvOS.

Prior to the introduction of Mac OS X, Apple experimented with several other concepts, releasing different products designed to bring the Macintosh interface or applications to Unix-like systems or vice versa, A/UX, MAE, and MkLinux. Apple's effort to expand upon and develop a replacement for its classic Mac OS in the 1990s led to a few cancelled projects, code named Star Trek, Taligent, and Copland.

Although they have different architectures, the Macintosh operating systems share a common set of GUI principles, including a menu bar across the top of the screen; the Finder shell, featuring a desktop metaphor that represents files and applications using icons and relates concepts like directories and file deletion to real-world objects like folders and a trash can; and overlapping windows for multitasking.

reference

Full Form	Category
Mathematical Optimization Society	Academic & Science
Maryland Ornithological Society	Academic & Science
Marine Observation Satellite	Academic & Science
Military Oceanography Subcommittee	Academic & Science
My Own Science	Academic & Science
Mountain Ocean Sunshine	Academic & Science
Moses Point (ak)	Airport Code
Mutual Offset System	Business
Mobile Streams	Business
Mercantile Office System	Business
Margin On Services	Business
Members, Owners, and Staff	Business
My Own Store	Business
Money Order Sales	Business
Margin Of Success	Business
Motion Omit Sound	Community
Manual of Style	Community
Music Of the Spirit	Community
Mohican Outdoor School	Community
Ministry Of Sports	Community
Mountains, Ocean, and Sun	Community
Mean Opinion Score	Computer and Networking
Maintenance Override Switch	Computer Hardware
My Oracle Support	Computing
Microsoft Office System	Computing
Material Order System	Computing
Microsoft Office Starter	Computing
Mobile Office Support	Computing
Modular Optical Scanner	Computing
Macintosh Operating System	Computing
Mission Operation System	Computing
Magneto Optic Storage	Computing
Minimum Operating System	Computing
Management Operating System	Computing
Multiuser Operating System	Computing
Master Operating System	Computing
Multiprogramming Operating System	Computing
Mobile Office System	Computing
Mobile Office Suite	Computing
Managed Object System	Computing
Ma On Shan, Hong Kong	Country Specific
Metadata Organization System	Database Management
Metal Oxide Semiconductor	Electronics
Metal On Silicon	Electronics
Maintenance Operations Support Clerk	General
Monthly Operational Summary	General
Office Systems	General
Mountain Ocean and Sun	General
Most Often Store	General
Metallurgy Of Semiconductors	General
Michigan Office Solutions	General
Magnetic Organization System	General
Model Output	General
Marine Occupational Specialties	General
Modular Optic System	General
Metal Oxide on Semiconductor	General
Mors Omnia Solvit (Latin for deat solves everything)	General
Mountain Ocean Sun	General
Members Only Site	General
Media Object Servers	General
Materials On Site	General
Marine Observations Satellite	General
Meeting Of Styles	General
Mute On Slate	General
Move Optimal Sequences	General
Moment Of Symmetry	General
Motor Only Sync	General
Maserati Of Sacramento	General
Motor Omnibus Services	General
Mission Of Specialty	General
Multi Organoleptic Systems	General
Metal Oxide Silicon	General
Model Operating System	General
Memory On Silicon	General
Man Of Steel	General
Mountains Ocean And Sky	General
Mastery Of Stealth	General
Member Of Service	Governmental
Military Occupational Skill	Governmental
Ministry of Sound	Governmental
Minister Of State	Governmental
Military Occupational Specialties	Governmental
Ministry Of Security	Governmental
Member of Opposite Sex	Governmental
Man On Street	Governmental
Mean Opinion Scoring	Governmental
Microsoft Office Specialist	Information Technology
My Other Secretary	Jobs
Marketing Opportunity Specialist	Jobs
Military Occupational Speciality	Jobs
Make Over Specialist	Jobs
Model Output Statistics	Maths
Months	Measurement Unit
medical outcomes Study	Medical
Missouri Oncology Society	Medical
Medical Office Specialist	Medical
Mom Over Shoulder	Messaging
Military Occupatonal Specialty	Military and Defence
Military Occupational Specialty	Military and Defence
Minimum Operating Strip	Military and Defence
Military Occupation Specialties	Military and Defence
Member of The Service	Military and Defence
Month of Supply	Military and Defence
Microsoft Online Service	Networking
Minimum Operable Segment	Networking
Media Object Server	Networking
Mossi	Regional
Mit Out Sound	Softwares
Mambo Open Source	Softwares
Margin of Safety	Space Science
Multi Object Spectrograph	Space Science
Maneuver Observation System	Space Science
Metal Oxide On A Substrate	Space Science
Mission Operations System	Space Science