1991: The Linux kernel was publicly announced on 25 August by the 21-year-old Finnish student Linus Benedict Torvalds.[17]
Linux is an operating system. Which helps to operate a computer.
Linux is open source and it's available publicly. Its code is written in C language.
Windows, Mac OS code is not publicly available so it’s not open source.
91% of applications on the internet are using Linux.
Allow multi-user and multi-tasking.
Provide high security. Does not need any kind of anti-virus software.
Everything in Linux is either a file or a directory (Folder). Files we are writing and folder is a collection of files.
The flavor of Linux or distribution of Linux: Ubuntu, CentOS, Redhat, kali Linux (has some tools related to hacking), Fedora, etc.
Linux is open source so everyone can get that code make some changes to that and make their own OS.
Everything In Linux is done through command. We are giving instructions through commands to the computer. Instructions like making a folder, creating the file, copy the file, changing the directory etc.