<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV>The G5 is a "64 bit chip" right so it is safe to assume that you would want the 64 bit version to better utilize your hardware.</DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV>Daniel J. Brieck Jr.</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN> </DIV><BR><DIV><DIV>On Feb 23, 2006, at 3:41 PM, John Erdman wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite">I was about to download some trial software that asked me which I wanted: The OS10.4 - 32 bit or the OS10.4 - 64 bit version.<DIV><BR class="khtml-block-placeholder"></DIV><DIV>This is new to me. </DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>I gather from a brief Google search that 64 bit operation is an emulation but I have no idea of which version to select or more importantly why I should select that one. I also gather that 64 bit operation is a desirable goal but Tiger isn't there yet. So ... which should I choose, and why?</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Thanks,</DIV><DIV>John</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>My system version is <FONT class="Apple-style-span" size="4"><SPAN class="Apple-style-span" style="font-size: 14px;">Mac OS X 10.4.5 (8H14). My machine is a 20" iMac G5 2.0 GHz w/ 1 Gig memory</SPAN></FONT></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><BR class="khtml-block-placeholder"></DIV> </BLOCKQUOTE></DIV><BR></BODY></HTML>