The so-called Unix-like family refers to a wide variety of OS, including System V, BSD, Linux and so on. Since Unix is a registered trademark of Open Group, it refers to the operating system that abides by the behavior defined by this company. Unix-like usually refers to an operating system that contains more functions than the original Unix.

2. Mike OS X.

MacOS, formerly known as "Mac OS X" or "OS X", is an operating system running on Apple Macintosh series computers. Mac OS is the first successful graphical user interface system in the commercial field. The Macintosh development team includes Bill Atkinson, Jeff Ruskin and andy hertzfeld.

3, chrome operating system

Google Chrome OS is a lightweight, web-based computer operating system project of Google, which is based on Google Chrome's Linux kernel.

Extended data:

1, process management

Because most computers only contain a central processing unit, in the case of macro-core, multi-processes just switch processes quickly so that each process can run. In the case of multi-core or multi-processor, all processes are transformed on each processor or core through many cooperative technologies.

2. Memory management

According to Parkinson's law: "If you give a program more memory, the program will try its best to use it up", so programmers usually want the system to give him unlimited and infinitely fast memory. Most modern computer memory architectures are hierarchical, with the fastest and least number of registers first, followed by cache, memory and the slowest disk storage devices.

3. Disks and file systems

The so-called file system usually refers to the system that manages disk data, which can store data in the form of directories or files. Each file system has its own special format and functions, such as log management or diskless reorganization.

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