Linux is an operating system, like Windows, that runs on the Linux Kernel, which is based off of UNIX.
Linux is open source, not shareware or proprietary. There are commercial Linux distributions.
System software. In fact, Linux itself is *the* system software: The kernel of a Linux distribution and the central software of the Linux operating system.
Windows is a family of operating systems. Linux is a kernel upon which operating systems are built.
"Linux software" is any software that runs on Linux. As such, the price for any particular piece of software can range from nothing to several thousand dollars.
Linux uses Eset as a security software. It is used to protect files and email. In real time it monitors all of the files and applications on the system.
Kernel (middle man between hardware and applications)
The whole of the Linux kernel is open-source software.
There are several different tax software compatible with Linux. You can use Tax Act. Is another software that people use when the Linux is not available.
Linux is not a company.
No, Linux is an operating system. More accurately, Linux is a monolithic kernel. Application software must include direct interaction to the user to be considered application software.
There are thousands of pieces of software in existence. It would be impractical, if not impossible, to list every piece of software that was not compatible with Linux.