able data in the calculator. The file format that the TI-85
Graph Link software uses can be found in the <a
 href="fformat.html#backup">file formats</a> section of this
documentation.</p>
<p>The protocol for all system backup transfers is shown below. For
information on packet formats, <a href="packet.html">click here</a>.</p>
<p>A computer can be either the sending unit or the receiving unit.</p>
<p>
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