| Revision History | 
|---|
| Revision 2.4 | 12 June 2001 | Revised by: esr | 
| Where to find more. | 
| Revision 2.3 | 22 May 2001 | Revised by: esr | 
| Introduction to bus types.  
            Polish translation link. | 
| Revision 2.2 | 5 February 2001 | Revised by: esr | 
| New section on how DNS is organized.  Corrected for new
	    location of document. Various copy-edit fixes. | 
| Revision 2.1 | 29 November 2000 | Revised by: esr | 
| Correct explanation of twos-complement numbers.  Various
	    copy-edit fixes. | 
| Revision 2.0 | 5 August 2000 | Revised by: esr | 
| First DocBook version.  Detailed description of memory hierarchy. | 
| Revision 1.7 | 6 March 2000 | Revised by: esr | 
| Correct and expanded the section on file permissions. | 
| Revision 1.4 | 25 September 1999 | Revised by: esr | 
| Be more precise about what kernel does vs. what init does. | 
| Revision 1.3 | 27 June 1999 | Revised by: esr | 
| The sections `What happens when you log in?' and `File
            ownership, permissions and security'. | 
| Revision 1.2 | 26 December 1998 | Revised by: esr | 
| The section `How does my computer store things in memory?'. | 
| Revision 1.0 | 29 October 1998 | Revised by: esr | 
| Initial revision. |