$92,000 Net revenue - $52,000 Variable expenses = $40,000 Contribution margin. This ratio is only used from the perspective of deriving the lowest possible acceptable price for a unit. In reality, a variety of other pricing concepts can be used to establish higher price points for products.
Steam OS is possibly the best, most known and used cross platform Linux gaming distribution based on  Debian Linux, it is an assortment of numerous entertainment software, you can think of it as a complete gaming platform for Linux.
These three main operating systems have been around for years, and there have been many OS versions for each brand. The five best versions for online gaming are discussed below. Operating Systems for Online Gaming. Each OS has its own positive and negative factors when it comes to running online games.