In hockey, the term “slot” refers to the area between the face-off circles on the offensive side of the ice. There are two kinds of slots: the low slot is in front of the goaltender while the high slot is located in the middle of the ice above the face-off circles.
In most states, you can buy slot machines for private use. However, some do have age restrictions. Generally, you can only buy machines that were manufactured before a certain date. Wiktionary has an entry on the term “slot machine”. If you are unsure whether a slot machine is legal in your state, check with the gaming commission before buying one.
The technology behind slot machines has evolved considerably over the years. Some machines are completely mechanical, while others are computer-controlled. However, the basic game principle is the same. When playing a slot machine, you need to pull a handle that rotates a series of reels. The reels have pictures printed on them. Each reel has a pay line in the middle. If three or four pictures line up with each other, the player wins.
The modern version of the slot machine has computer technology instead of gears and levers. The mechanical version uses a metal shaft to support the reels. The handle mechanism is connected to this metal shaft. There is a braking system that stops the reels from spinning, and sensors communicate the position of the reels to the payout system. Moreover, a coin detector unlocks the brake when the player inserts a coin.