LINUX-POWERED SLOT MACHINE

Looking inside a Linux powered slot machine - Blog | Rakettitiede

In my day job, I work as a consultant. It means I can see all sorts of cool things. One of them is this hardware here it’s a slot machine operated by Veikkaus, which is the state-owned company that operates all gaming services in Finland. There are currently around 20,000 slot machines in use in Finland. It’s interesting on its own, but things get really fun when you look inside. Much of the interior is occupied by machines that process coins. When a coin is inserted into the machine, it first passes through the coin mechanism which, in the image, is marked with a green box. Detect the room type.Each cut has its own exit chute. The incorrect coins are rejected by the machine while the sorted coins are passed through the coin hoppers (marked in red). A coin collector is basically a bowl of coins and a mechanism capable of ejecting coins from it one by one. When you think of slot machines, you probably think of the sound they make when they start spitting out tons of coins after a jackpot.

I recommend that you search for videos on Youtube if you are interested in mechanical engineering because the way they work is quite fascinating. The slot machine also accepts slot online bonus new member banknotes and debit card payments but these are mechanically much simpler and do not take up much space. The only thing left in the picture is the square marked in yellow. It contains the real brain of the whole machine. The contents of the brainThe main system is, like everything these days, a normal computer. This spec is a pretty average industrial PC running a custom build of Debian. On startup, launches game software based on a custom version of Ogre 3D Graphics Engine. The computer also manages and controls all other hardware in the cabinet, such as the coin hoppers and bill acceptor mentioned above, using a custom, self designed controller board. The cabinet that houses the device is also custom designed and built. Surprisingly, a slot machine is pretty much the same as a desktop computer running desktop games with a few additional peripherals.

This means that Linux desktop games have become common among the general Finnish population for 15 years, which is about the time these slots have been implemented. In addition to the games themselves, the development environment is also 100% Linux. As a demonstration, here is a screen shot of a development version of the software running on a developer workstation. In my day job, I work as a consultant. It means I can see all sorts of cool things. One of them is this hardware here it’s a slot machine operated by Veikkaus, which is the state-owned company that operates all gaming services in Finland. There are currently around 20,000 slot machines in use in Finland. It’s interesting on its own, but things get really fun when you look inside. Much of the interior is occupied by machines that process coins. When a coin is inserted into the machine, it first passes through the coin mechanism which, in the image, is marked with a green box. Detect the room type.Each cut has its own exit chute. The incorrect coins are rejected by the machine while the sorted coins are passed through the coin hoppers (marked in red).

A coin collector is basically a bowl of coins and a mechanism capable of ejecting coins from it one by one. When you think of slot machines, you probably think of the sound they make when they start spitting out tons of coins after a jackpot. I recommend that you search for videos on Youtube if you are interested in mechanical engineering because the way they work is quite fascinating. The slot machine also accepts banknotes and debit card payments but these are mechanically much simpler and do not take up much space. The only thing left in the picture is the square marked in yellow. It contains the real brain of the whole machine. The contents of the brainThe main system is, like everything these days, a normal computer. This spec is a pretty average industrial PC running a custom build of Debian. On startup, launches game software based on a custom version of Ogre 3D Graphics Engine. The computer also manages and controls all other hardware in the cabinet, such as the coin hoppers and bill acceptor mentioned above, using a custom, self designed controller board.

The cabinet that houses the device is also custom designed and built. Surprisingly, a slot machine is pretty much the same as a desktop computer running desktop games with a few additional peripherals. This means that Linux desktop games have become common among the general Finnish population for 15 years, which is about the time these slots have been implemented. In addition to the games themselves, the development environment is also 100% Linux. As a demonstration, here is a screen shot of a development version of the software running on a developer workstation.

What about the money?

Like all forms of gambling, slot machines make quite a lot of money.The yearly profits, as of last count, were on the order of 500 million euros per year.As Veikkaus is a government run business, this money is given out to various charitable organisations as well as to the state.Given that Finland’s yearly budget is on the order of 50 billion euros, this means that profits from Linux desktop gaming account for almost 1 % of the entire budget of the state of Finland.

Acknowledgements

Thanks to Veikkaus for giving me permission to write this blog post.Extra special thanks for allowing to show the picture of the insides of a slot machine, which has never before been shown in public.

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