Hi Angelina and Welcome to Digicamhelp!
Most digital cameras today are PictBidge compatible. A salesman should be able to tell you if one is compatible. The box the camera comes in would have this symbol:
If you buy a camera online, check out the specs for the camera. They should mention if the camera is PictBridge compatible.
You'll find more information about PictBridge in this thread:
http://www.digicamhelp.com/cgi-bin/yabb/YaBB.cgi?board=access;action=display;num=1110053058Related reading:
What is PictBridge? http://www.digicamhelp.com/what-is-pictbridge/