Linux Basics Review (1)--linux System Overview

1. What is an operating system? What is the relationship between it and the hardware and other software?

An operating system is a system software (or a collection of programs) that controls and manages various hardware and software resources within a computer system, effectively organizes multi-channel programs, and is an interface between the user and the computer. In particular, say:

• The operating system is software, and is the system software.
• Its basic function is to control and control the various resources within the computer system, and to effectively organize the operation of multi-channel programs.
• It offers a wide range of services to facilitate user use and expand hardware capabilities.

The most authoritative explanation of the operating system click View from Wiki

relationship with hardware: the operating system directly controls and manages hardware resources, and many of the functions are completed with hardware actions (e.g., system interrupts). Operating system operation requires a good hardware environment.
relationship with software: The operating system is the control center of the whole computer system, and other software is built on the operating system. The operating system has both the power and the necessary environment for its operation.

2. What are the salient features of Linux?

• compatible with UNIX
• high performance, strong security
• easy to customize and re-develop
• interoperability high
• full multitasking and true 32-bit operating system
• Widely used in the server market and embedded systems, it is a high-performance, low-cost system that can replace other expensive operating systems.

More information about Linux-wikipedia

What is the difference between the core version of Linux and the release version?

• linux core version: by Linus and others (enthusiastic netizens, most of them from the open source community) to maintain, Unified Publishing.
• release: made by each issuing company or organization, there is no comparability between the release numbers of different companies.
  

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Linux Basics Review (1)--linux System Overview