[ By Archive-name
| By Author | By Category | By Newsgroup ]
[ Home | Latest Updates | Archive Stats | Search | Usenet References | Help ]
Part1 - Part2 - Single Page
Top Document: comp.sys.3b1 FAQ part2
Previous Document: 8.0. Mysteries
Next Document: 8.2. What's /etc/update? What does it do?
[ Home | Latest Updates | Archive Stats | Search | Usenet References | Help ]
-
Search the FAQ Archives
Part1 - Part2 - Single Page
Top Document: comp.sys.3b1 FAQ part2
Previous Document: 8.0. Mysteries
Next Document: 8.2. What's /etc/update? What does it do?
8.1. What are the LED's left side of the machine for?
This is from John Milton's HwNotes series #1. 0 RED: This is the "user LED". It can be turned on and off with the syslocal(2) call. It is not used by any existing applications. 1 GREEN: This is the one most people get wrong. This LED toggles every time there is a process context change, and is cleared on the whole second. 2 YELLOW: This is the idle LED. When it is on, there are no processes in the ready to run state. 3 RED: Heart beat LED. This is toggled on the whole second. This and other interesting information is available in the HwNote series 1-15 that are archived on OSU.
Top Document: comp.sys.3b1 FAQ part2
Previous Document: 8.0. Mysteries
Next Document: 8.2. What's /etc/update? What does it do?
Part1 - Part2 - Single Page
[ By Archive-name | By Author | By Category | By Newsgroup ]
[ Home | Latest Updates | Archive Stats | Search | Usenet References | Help ]
Send corrections/additions to the FAQ Maintainer:
jbunch@nyx.nyx.net (John B. Bunch)
Last Update July 09 2008 @ 00:12 AM