What LasVegas said: the next step is to figure out just which iMac you have, so you have a better idea what it can do. The original 1998 iMac, with a 233MHz processor, is probably still acceptable for many applications short of image or video editing or heavy-duty gaming. Anything newer than that is better...Check here for a general idea: Low End Mac iMac profiles I have an old (350MHz) G3 powerbook that runs OSX "acceptably for email and web surfing", so chances are that your iMac will run relatively modern software. (whether you want to PAY for modern software is a separate question. My general advice is not to spend money on very old computers, but to hit people up for free stuff, or use what's already there.)It is also possible to run some versions of linux on some iMacs, although I'm not sure if that's useful for anything other than playing with linux.Does it work? Did it come with CDs of any kinds? Do you know anything about macs in general?Old iMacs are pretty cheap; perhaps as cheap as you can get a "ready to run" computer (ie with monitor) Computer geeks has several (though you'll need to add keyboard and mouse) for well under $100.