diff --git a/en_US.ISO8859-1/books/handbook/printing/chapter.sgml b/en_US.ISO8859-1/books/handbook/printing/chapter.sgml
index a5a62a6265..4b1de12b01 100644
--- a/en_US.ISO8859-1/books/handbook/printing/chapter.sgml
+++ b/en_US.ISO8859-1/books/handbook/printing/chapter.sgml
@@ -280,8 +280,8 @@
 	<sect4 id="printing-ports">
 	  <title>Ports and Cables</title>
 
-	  <para>Nearly all printers you can get for a PC today support one
-	    or both of the following interfaces:</para>
+	  <para>Printers sold for use on PC's today generally come
+	    with one or more of the following three interfaces:</para>
 
 	  <itemizedlist>
 	    <indexterm>
@@ -289,13 +289,16 @@
         <secondary>serial</secondary>
       </indexterm>
 	    <listitem>
-	      <para><emphasis>Serial</emphasis> interfaces use a serial
-		port on your computer to send data to the printer.  Serial
+	      <para><emphasis>Serial</emphasis> interfaces, also known
+		as RS232C or RS232D, or COM ports, use a serial port
+		on your computer to send data to the printer.  Serial
 		interfaces are common in the computer industry and cables
 		are readily available and also easy to construct.  Serial
 		interfaces sometimes need special cables and might require
 		you to configure somewhat complex communications
-		options.</para>
+		options.  Most PC serial ports have a maximum
+	        transmission rate of 115200 bps, which makes printing
+	        large graphic print jobs with them impractical.</para>
 	    </listitem>
 
 	    <indexterm>
@@ -305,7 +308,8 @@
 	    <listitem>
 	      <para><emphasis>Parallel</emphasis> interfaces use a
 		parallel port on your computer to send data to the
-		printer.  Parallel interfaces are common in the PC market.
+		printer.  Parallel interfaces are common in the PC market
+		and are faster than RS232 serial.
 		Cables are readily available but more difficult to
 		construct by hand.  There are usually no communications
 		options with parallel interfaces, making their
@@ -319,19 +323,42 @@
 		<quote>Centronics</quote> interfaces, named after the
 		connector type on the printer.</para>
 	    </listitem>
+
+	    <indexterm>
+        <primary>printers</primary>
+        <secondary>USB</secondary>
+	</indexterm>
+	    <listitem>
+	      <para>USB interfaces, named for the Universal Serial
+	        Bus, can run at even faster speeds than parallel or
+	        RS232 serial interfaces.  Cables are simple and cheap.
+	        USB is superior to RS232 Serial and to Parallel for
+	        printing, but it is not as well supported under UNIX
+	        systems.  A way to avoid this problem is to purchase a
+	        printer that has both a USB interface and a Parallel
+	        interface, as many printers do.</para>
+	    </listitem>
 	  </itemizedlist>
 
-	  <para>In general, serial interfaces are slower than parallel
-	    interfaces.  Parallel interfaces usually offer just
+	  <para>In general, Parallel interfaces usually offer just
 	    one-way communication (computer to printer) while serial
-	    gives you two-way.  Newer parallel ports (EPP and ECP) and printers
+	    and USB gives you two-way. Newer parallel ports (EPP and
+	    ECP) and printers
 	    can communicate in both directions under FreeBSD when a
 	    IEEE1284 compliant cable is used.</para>
 
 	  <indexterm><primary>PostScript</primary></indexterm>
-	  <para>Usually, the only time you need two-way communication with
-	    the printer is if the printer speaks &postscript;.  &postscript;
-	    printers can be very verbose.  In fact, &postscript; jobs are
+
+	  <para>Two-way communication to the printer over a parallel
+	    port is generally done 1 of two ways.  The first method
+	    uses a custom built printer driver for FreeBSD that speaks
+	    the proprietary language used by the printer.  This is
+	    common with inkjet printers and can be used for reporting
+	    ink levels and other status information.  The second
+	    method is used when the printer supports
+	    &postscript;.</para>
+
+	  <para>&postscript; jobs are
 	    actually programs sent to the printer; they need not produce
 	    paper at all and may return results directly to the computer.
 	    &postscript; also uses two-way communication to tell the