controling 16 points (how)

HI FRND,,
I AM ABOUT TO OPEN A BILLIARD CLUB CONTAINING 16 SNOOKER & BILLIARD TABLES AND WANT TO CONLROL THEM BY PC...
I THINK TO USE LPT PORT WITH SOME RELAYS TO SWITCH ON/OF BUT THE MAIN THING THAT HOW WILL THIS HAPPEN AND HOW COULD O GET THE SOFTWARE THAT COULD CONTROL IT???

Controlling Billiard tables by PC. What do you want to control on the table. I cannot figure out what do you want to do? Could you explain?

IT IS VERY RUDE TO TYPE IN BLOCK CAPITALS ALL THE TIME. PLEASE DO NOT TO IT OR YOU WILL BE LABLED AS A TROLL!

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Only the lights ( each table is going to have lights on it ) even it could be better if it could be timmed (eg. switch of after one hour)
I want to make it because all other billiard or snooker clubs here are having machines that just works to on and off but i need it to calculate the time and income. eg. 10$ per hour so if 5 tables are being used at for 2 hours, i could get that by PC 10x5x2=100$ just to be little advanced and to be safe for account and other stuff

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