How much old do you mean by old?
Well, before Gnome and KDE, there was the Command Line Interface (CLI).
MCC Interim Linux was the first linux distribution, released in February 1992 used the CLI.
Yes, Linux is like an operating system much like Windows OS or Mac OS. Linux is kind of like a community of Operating Systems. A popular OS from Linux is Ubuntu.
No. Linux is a Unix-Like and mostly POSIX compliant OS assembled under the model of free and open source software development and distribution. -Wikipedia.Linux is not considered an operating system but the kernel. If you combine the linux kernel with some utilities, mainly utilities (software) created as a result of the GNU project, you get GNU Linux. Now that's a complete Operating System.
Linux is an operating system on which a wide array of system distributions (Such as Ubuntu and Android.) are built.
Redhat is a Linux based operating system.
Suse Linux is a software company, as it the distributor of the Linux operating system. It was established in 1992 and is part of the Suse Linux Enterprise.
There are 3: Linux, Microsoft Windows, or Mac OS. Linux has a lot of operating systems under it.
Windows, MacOS, and Linux are the most common.
Slax is small, portable, and fast Linux operating system. It refers to itself as "your pocket operating system". It is a Slackware-based bootable CD designed with modular approach.
Most applications are available at your distribution's repositories, however depending on the kind of distribution, you may have the option to use user-created repositories that allow you to use applications or dependencies that offer features the official packages do not have, or that the official packages are not offered due to legal issues (some distributions have a strict policy against including non-free/proprietary software in their repositories).
Any gamepad supported by your operating system (such as Windows or Linux) can be used.
Apple, Microsoft, or if its based in Detroit, then Linux
In Linux, after the user log in to a terminal hi/she receives a user interface called Shell