http://rafbar-shakethenet.disqus.com/Software - Applications - InternetenTue, 27 Apr 2010 16:01:02 -0000http://rafbar.com/?p=378#comment-47017719<p>Some operating systems limit the length of the extension such as DOS and OS/2, to three characters while others such as Unix do not. Some operating systems for example RISC OS do not use filename extensions.</p>Wheels For SaleTue, 27 Apr 2010 16:01:02 -0000http://rafbar.com/?p=378#comment-15698440<p>I'm using microsoft windows OS I'n not familiar with MAC OS X and Unix based operating systems. I hope to learn that for an experience or if I find it good I'll use it for the better.</p>RapTue, 01 Sep 2009 04:08:48 -0000http://rafbar.com/?p=378#comment-15693161<p>In some operating systems for example Unix it is optional, while in some others such as DOS, it is a requirement. Some operating systems limit the length of the extension such as DOS and OS/2, to three characters while others such as Unix do not. Some operating systems for example RISC OS do not use filename extensions. Unix accepts the separator dot as a legal character but does not give it a special recognition on the OS level.</p>miami website designMon, 31 Aug 2009 23:45:39 -0000