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<HTML>
<HEAD>
  <!-- Created with AOLpress/2.0 -->
  <TITLE>IBM 1401 Simulator Configuration</TITLE>
</HEAD>
<BODY>
<H1 ALIGN=Center>
  IBM 1401 Simulator Configuration
</H1>
<P>
The IBM 1401 was introduced in 1960 as an I/O pre- and post-processor for
its 36-bit mainframes.&nbsp;In addition, it was the first widely used small
business computer.
<P>
Photographs (courtesy of Paul Pierce):
<UL>
  <LI>
    <A HREF="photos/ibm1401.jpg">IBM 1401</A>
</UL>
<P>
<TABLE BORDER="2" CELLPADDING="2">
  <TR>
    <TD><P ALIGN=Left>
      <B>Option</B></TD>
    <TD><P ALIGN=Left>
      <B>Description</B></TD>
    <TD><B>Capacity</B></TD>
  </TR>
  <TR>
    <TD><P ALIGN=Left>
      CPU and memory</TD>
    <TD><P ALIGN=Left>
      IBM 1401</TD>
    <TD>4K - 16K characters</TD>
  </TR>
  <TR>
    <TD><P ALIGN=Left>
      CPU special features &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</TD>
    <TD><P ALIGN=Left>
      advanced programming (indexing) &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</TD>
    <TD></TD>
  </TR>
  <TR>
    <TD></TD>
    <TD>compare high-low-equal</TD>
    <TD></TD>
  </TR>
  <TR>
    <TD></TD>
    <TD>branch on bit equal</TD>
    <TD></TD>
  </TR>
  <TR>
    <TD></TD>
    <TD>modify address</TD>
    <TD></TD>
  </TR>
  <TR>
    <TD></TD>
    <TD>move record</TD>
    <TD></TD>
  </TR>
  <TR>
    <TD><P ALIGN=Left>
    </TD>
    <TD><P ALIGN=Left>
      extended print edit</TD>
    <TD></TD>
  </TR>
  <TR>
    <TD></TD>
    <TD>multiply/divide</TD>
    <TD></TD>
  </TR>
  <TR>
    <TD><P ALIGN=Left>
      Console</TD>
    <TD><P ALIGN=Left>
      1407 inquiry terminal</TD>
    <TD></TD>
  </TR>
  <TR>
    <TD><P ALIGN=Left>
      Cards</TD>
    <TD><P ALIGN=Left>
      1402 card reader punch</TD>
    <TD></TD>
  </TR>
  <TR>
    <TD><P ALIGN=Left>
      Line printer</TD>
    <TD><P ALIGN=Left>
      1403 line printer</TD>
    <TD></TD>
  </TR>
  <TR>
    <TD>Disk</TD>
    <TD>1311 disk pack</TD>
    <TD>2M characters</TD>
  </TR>
  <TR>
    <TD><P ALIGN=Left>
      Magnetic tape</TD>
    <TD><P ALIGN=Left>
      7 track magnetic tape</TD>
    <TD></TD>
  </TR>
</TABLE>
<P ALIGN=Left>
  <HR>
<P>
<I><SMALL>Updated 30-Jan-2007 by Bob Supnik (simh AT trailing-edge DOT com
- anti-spam encoded)</SMALL></I>
</BODY></HTML>