Linux-Based
UNIX - available usually for commercial purposes like AIX or HP-UX.
macOS
Windows-Based
As was discussed earlier, Linux kernel was developed by Linus Torvalds, a student from Finland. It is under the GPLv2 license. (the kernel is)
Ubuntu and RedHat are examples of distributions (previously discussed in previous Topics)
Linux Distributions have three categories
Enterprise Grade (usually contain Enterprise in their names)
designed to be deployed within large organizations using enterprise hardware
higher requirements for stability of their hardware and software
older releases of the kernel as they are known for work reliability
Consumer Grade
targeted for small business, home, or hobbyists
contain the latest drivers to make the most of new hardware
Experimental and Hacker Linux Distributions
based on cutting edge technology
contain the most recent versions of software that may contain bugs or untested features
rolling release model to allow for updates at any time
made for advanced users that want to receive the most recent software and understand functionality may break
Linux on servers are common practice in larger companies. They are often masked due to embedded systems
client-side doesn’t see the back end and due to applications being virtualized or containerized (like with the cloud) the OS is masked
Lesson 4.2: Understanding Computer Hardware
Lesson 4.3: Where Data is Stored