How to stand on the shoulders of giants

How To Stand On The Shoulders Of

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“The bestway topredict thefuture is toinvent it.”- Alan Kay

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BCPLGET "libhdr"LET start() = VALOF{ writes("Hello world*n") RESULTIS 0}

Bmain(){ a Hello world ; putchar (a); putchar (*n);}

C#include <stdio.h>int main(void){ printf("hello, worldn"); return 0;}

PHP/FI<? if(!$PHP_AUTH_USER) { Header("WWW-authenticate: basic realm="My Realm""); Header("HTTP/1.0 401 Unauthorized"); echo "Cancelledn" exit;} else { echo "Hello $PHP_AUTH_USER.<P>";} >

PHP 3<? function hitcount($counter_file){ if ( file_exists($counter_file) ) { $fp=fopen($counter_file,"r"); $count=0+fgets($fp,20); fclose($fp); } $fp=fopen($counter_file,"w"); fputs($fp,$count++); fclose($fp); return ($count);} ?>

QuickSort 1960function qsort($nums) { if(count($nums) < 2) {return $nums;} $pivot = array_rand($nums); $p1_val = $nums[$pivot]; unset($nums[$pivot]); $less = $more = array(); foreach( $nums as $n ) { if($n <= $p1_val) { $less[] = $n;} else { $more[] = $n; } } return array_merge(qsort($less), array($pivot_val), qsort($more));}

Dual Pivot QuickSort2009

VanJacobson“...is said to havesaved the Internetfrom collapsingdue to trafﬁc in1988-1989”- en.wikipedia.org/wiki/Van_Jacobson

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“The whole ﬁeld had suffered blinders; in some sensesearch really did need two people who were nevertainted by people like me to come up with that shake up”– Amit Singhal, Bell Labs

Thank You

Image CreditsSkater http://www.flickr.com/photos/eyedeaz/5004084713Martin Richards http://www.cl.cam.ac.uk/~mr10/Ken Thompson http://cm.bell-labs.com/who/dmr/picture.htmlDennis Ritchie http://www.bobdbob.com/hcc/halloffame/halloffame.htmlRasmus http://www.flickr.com/photos/wafer/365664702/Zeev & Andi http://www.flickr.com/photos/sebastian_bergmann/52408671Lorna http://www.flickr.com/photos/myrtti/6052575049Clock http://www.flickr.com/photos/indraw/4857101224TBL http://www.flickr.com/photos/tanaka/3212373419Turing http://www.flickr.com/photos/thurm/1554383213

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How to stand on the shoulders of giants

by Ian Barber

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