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<HTML>
<HEAD>
<!-- Created with AOLpress/2.0 -->
<TITLE>PDP-15 Simulator Configuration</TITLE>
</HEAD>
<BODY>
<H1 ALIGN=Center>
PDP-15 Simulator Configuration
</H1>
<P>
Introduced in 1969, the PDP-15 was DEC's fifth (and last) 18-bit computer
system. Upward compatible from the PDP-9, it included several new
architectural features, including indexing, expanded memory capacity, full
memory protection, and floating point. The last PDP-15 was produced in the
late 1970's.
<P>
Photographs (courtesy of Digital Equipment Corporation):
<UL>
<LI>
<A HREF="photos/pdp15.jpg">PDP-15</A>
</UL>
<P>
<TABLE BORDER="2" CELLPADDING="2">
<TR>
<TD><B>Option</B></TD>
<TD><B>Description</B></TD>
<TD><B>Capacity</B></TD>
</TR>
<TR>
<TD>CPU and memory </TD>
<TD>PDP-15, no floating point</TD>
<TD>4KW - 128KW</TD>
</TR>
<TR>
<TD>CPU options</TD>
<TD>KE15 EAE, extended arithmetic element </TD>
<TD></TD>
</TR>
<TR>
<TD></TD>
<TD>KF15 power fail detection</TD>
<TD></TD>
</TR>
<TR>
<TD></TD>
<TD>KM15 memory protection control</TD>
<TD></TD>
</TR>
<TR>
<TD></TD>
<TD>KT15 memory relocation control</TD>
<TD></TD>
</TR>
<TR>
<TD></TD>
<TD>XM15 (XVM) memory controller</TD>
<TD></TD>
</TR>
<TR>
<TD></TD>
<TD>FP15 floating point processor</TD>
<TD></TD>
</TR>
<TR>
<TD>Console</TD>
<TD>KSR-35 Teletype</TD>
<TD></TD>
</TR>
<TR>
<TD>Additional terminals</TD>
<TD>LT19 and KSR-35 Teletypes</TD>
<TD>1-16 lines</TD>
</TR>
<TR>
<TD>Paper tape</TD>
<TD>PC15 paper tape reader and punch</TD>
<TD></TD>
</TR>
<TR>
<TD>Real time clock</TD>
<TD>KW15 real time clock</TD>
<TD></TD>
</TR>
<TR>
<TD>Line printer</TD>
<TD>LP15 line printer</TD>
<TD></TD>
</TR>
<TR>
<TD>DECtape</TD>
<TD>TC15/TU56 DECtape</TD>
<TD>148KW</TD>
</TR>
<TR>
<TD>Disk</TD>
<TD>RF15/RS15 fixed head disk</TD>
<TD>2.1MW</TD>
</TR>
<TR>
<TD></TD>
<TD>RP15/RP02 disk pack</TD>
<TD>10.4MW</TD>
</TR>
<TR>
<TD>Magnetic tape</TD>
<TD>TC59D magnetic tape (9 track only)</TD>
<TD></TD>
</TR>
</TABLE>
<P>
<HR>
<P>
<I><SMALL>Updated 30-Jan-2007 by Bob Supnik (simh AT trailing-edge DOT com
- anti-spam encoded)</SMALL></I>
</BODY></HTML>