<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Yep</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Mar 8, 2015 at 4:48 PM, Johnny Billquist <span dir="ltr"><<a href="mailto:bqt@softjar.se" target="_blank">bqt@softjar.se</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">On 2015-03-08 21:39, Clem Cole wrote:<br>
</span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">
<br>
On Sun, Mar 8, 2015 at 8:23 AM, Sergey Oboguev <<a href="mailto:oboguev@yahoo.com" target="_blank">oboguev@yahoo.com</a><br></span><div><div class="h5">
<mailto:<a href="mailto:oboguev@yahoo.com" target="_blank">oboguev@yahoo.com</a>>> wrote:<br>
<br>
If so, he may have a claim to inventing (a hint at) a microkernel<br>
concept. ;-)<br>
<br>
<br>
Dykstra invented the ukernel -- its the THE kernel:<br>
<a href="https://en.wikipedia.org/wiki/THE_multiprogramming_system" target="_blank">https://en.wikipedia.org/wiki/<u></u>THE_multiprogramming_system</a><br>
<br>
The paper itself is<br>
<a href="http://uosis.mif.vu.lt/~liutauras/books/Dijkstra%20-%20The%20structure%20of%20the%20THE%20multiprogramming%20system.pdf" target="_blank">http://uosis.mif.vu.lt/~<u></u>liutauras/books/Dijkstra%20-%<u></u>20The%20structure%20of%20the%<u></u>20THE%20multiprogramming%<u></u>20system.pdf</a><br>
<br>
And all kernel hacker should read it some time. It where the idea of<br>
semaphores are defined and the idea of "up" and "down" - (aka P/V).<br>
</div></div></blockquote>
<br>
Well, in all fairness, semaphores were used on railways already in the 19th century...<span class="HOEnZb"><font color="#888888"><br>
<br>
Johnny<br>
<br>
-- <br>
Johnny Billquist || "I'm on a bus<br>
|| on a psychedelic trip<br>
email: <a href="mailto:bqt@softjar.se" target="_blank">bqt@softjar.se</a> || Reading murder books<br>
pdp is alive! || tryin' to stay hip" - B. Idol</font></span><div class="HOEnZb"><div class="h5"><br>
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