Shulou(Shulou.com)06/02 Report--

basic idea

The basic idea of Linux is twofold: first, everything is a file; second, every piece of software has a definite purpose. The first is that everything in the system boils down to a file, including commands, hardware and software devices, operating systems, processes, etc. For the operating system kernel, all files are considered to have their own characteristics or types. Linux is based on Unix, largely because the basic ideas are similar. [3]

completely free

Linux is a free operating system that users can obtain free of charge through the Internet or other channels, and can modify its source code at will. This is something no other operating system can do. Because of this, countless programmers from all over the world participated in the modification and writing of Linux, programmers can change it according to their own interests and inspiration, which makes Linux absorb the essence of countless programmers and continue to grow.

life philosophy

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Big. [4]

Fully compliant with POSIX 1.0 standard

This makes it possible to run common DOS and Windows programs under Linux through the corresponding simulator. This laid the foundation for users to switch from Windows to Linux. When many users think about Linux, they are reassured by the fact that programs that used to be common under Windows will work properly. [4]

Multi-user, multi-tasking

Linux supports multiple users, each user has its own special rights for its own file device, ensuring that each user does not affect each other. Multitasking is one of the most important features of modern computers, and Linux allows multiple programs to run simultaneously and independently. [4]

good interface

Linux has both a character interface and a graphical interface. In the character interface, the user can input corresponding instructions through the keyboard to operate. It also provides an X-Window system similar to Windows graphical interface, which users can manipulate with the mouse. In the X-Window environment, it is similar to Windows, which can be said to be a Linux version of Windows. [4]

Support for multiple platforms

Linux can run on a variety of hardware platforms, such as platforms with x86, 680x0, SPARC, Alpha, and more processors. Linux is also an embedded operating system that can run on handheld computers, set-top boxes, or game consoles. Linux version 2.4, released in January 2001, fully supports the Intel 64-bit chip architecture. Linux also supports multiprocessor technology. Multiple processors work simultaneously, which greatly improves system performance. [4]

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