It kind of depends on what you want to do. You probably don't want to show up in a serious tapers section with it and ask to patch in, it is a little too bulky for that, likewise stealth is totally out of the question. That being said, it may be a useful tool for some purposes. Go get some 1/4" to RCA adapters, an RCA to mini (1/8") cable, and first plug it into your stereo line outs. Download Audacity and see if you can't get it running off. If that works out and you don't hear too much noise from your computer (they tend to give off copious amounts of stray RF) then maybe you'll want to haul it down to the local saloon or coffee house and plug it into the board (use the 1/4" adapters or the RCA's into the Tape Out) of someone that you know. Start small, work up. If you want to try microphone recording, see if it has mic in, which would work for some small battery powered mics like the AT822 or some Sony consumer mics. Then look into an outboard USB preamp and some better microphones because the audio electronics on a laptop are not very good.
For better answers, you may want to be specific about what you are trying to accomplish.