<p>You need the TI Connect software, downloadable here.</p>
<p>[TI</a> Connect & App Instructions for Windows® by Texas Instruments -US and Canada](<a href=“http://education.ti.com/educationportal/sites/US/nonProductMulti/download_stepbystep.html?bid=2]TI”>http://education.ti.com/educationportal/sites/US/nonProductMulti/download_stepbystep.html?bid=2)</p>
<p>You also need a USB cable. If you brought a new calculator, it came with it. If not, you can pick one up at Circuit City. Note that, as far as I remember, only the TI-84 uses the USB cable… I think you need one of the older cables to connect to the TI-83.</p>