Slot machines have been around since the 1800s, and were originally installed in casinos and saloons for use by those without enough gambling knowledge to tackle the craps, blackjack, or daunting poker tables.

At present, slot machines will still be in use across the globe, although excellent online gambling agent slots, or virtual slots, are proving to be an ever-growing internet hit.

Here are a few bits of information for well informed gambling:

In first production, slot machines contained a series of drums, which rotated around a main cog at varying speeds. The drums would slow down until eventually come to a halt, and winnings were decided through the 'payline'.

This payline is still in use today but has been converted to video reels, and has increased from a single horizontal line, to a series of multiple horizontal and diagonal lines which provide various combinations of betting tactics and payoffs.

Modern paylines will be able to produce over 50 combinations of results from just one spin.