Purchasing computers, peripherals and software at computer shows that happen at various convention centers and hotel meeting rooms can be risky. Often the vendors are not reachable after the show is over by simply visiting the same location. The products can be unfamiliar - and sometimes even old. And of course, when vendors come in from out of town, you never really know whether they are reputable. There are a few steps that you can take to minimize your risks.

1. Ask how old the items are that you're buying. Ask if there are any newer versions on the market. To make sure you're getting an accurate answer, ask several of the vendors on the show floor the same questions before you decide to buy.

2. Find out something about the vendor. Is he local? Does she have a toll-free number? What type of support will he provide?

3. Ask about a money back guarantee.

4. Just in case, does he accept credit cards? Purchasing with a credit card gives you the opportunity to dispute your purchase on the grounds that the items provided don't meet the promise of the vendor.

5. Before you attend, learn about the product category. Ask friends & associates, or browse the Internet for information. You'll get a better deal if you're smart when you go in.

6. Ask for detailed specifications - especially when buying a system built to order or a low price system. Some vendors save money by including old or under-performing components. Be particularly cognizant of the speed of your disk drive, and the amount, speed & type of memory in a system.

7. Don't buy obsolete software.

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