Non-hierarchical file system

Long ago, as the design of the Unix file system was being worked out, the entries . and .. appeared, to make navigation easier. I'm not sure but I believe .. went in during the Version 2 rewrite, when the file system became hierarchical (it had a very different structure early on).Rob Pike -- reading Non-hierarchical file system

Software updates – part II

Continued from part i Frequently-updated software is the norm. The frequency varies, of course, depending on the particular software. Generally, developers depend on it. Without updates, internet-connected (read: pretty much all) software would be increasingly vulnerable to hacking as security flaws are continually discovered. And without the ability to continually improve software through updates, a … Continue reading Software updates – part II