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De - Pt| Proverbs, aphorisms, quotations (English) | by Linux fortune |
| If you ever want to have a lot of fun, I recommend that you go off and program an imbedded system. The salient characteristic of an imbedded system is that it cannot be allowed to get into a state from which only direct intervention will suffice to remove it. An imbedded system can't permanently trust anything it hears from the outside world. It must sniff around, adapt, consider, sniff around, and adapt again. I'm not talking about ordinary modular programming carefulness here. No. Programming an imbedded system calls for undiluted raging maniacal paranoia. For example, our ethernet front ends need to know what network number they are on so that they can address and route PUPs properly. How do you find out what your network number is? Easy, you ask a gateway. Gateways are required by definition to know their correct network numbers. Once you've got your network number, you start using it and before you can blink you've got it wired into fifteen different sockets spread all over creation. Now what happens when the panic-stricken operator realizes he was running the wrong version of the gateway which was giving out the wrong network number? Never supposed to happen. Tough. Supposing that your software discovers that the gateway is now giving out a different network number than before, what's it supposed to do about it? This is not discussed in the protocol document. Never supposed to happen. Tough. I think you get my drift. | |
| Brief History Of Linux (#4) Walls & Windows Most people don't realize that many of the technological innovations taken for granted in the 20th Century date back centuries ago. The concept of a network "firewall", for instance, is a product of the Great Wall of China, a crude attempt to keep raging forest fires out of Chinese territory. It was soon discovered that the Wall also kept Asian intruders ("steppe kiddies") out, just as modern-day firewalls keep network intruders ("script kiddies") out. Meanwhile, modern terminology for graphical user interfaces originated from Pre-Columbian peoples in Central and South America. These natives would drag-and-drop icons (sculptures of the gods) into vast pits of certain gooey substances during a ritual in which "mice" (musical instruments that made a strange clicking sound) were played to an eerie beat. | |
| What really shapes and conditions and makes us is somebody only a few of us ever have the courage to face: and that is the child you once were, long before formal education ever got its claws into you -- that impatient, all-demanding child who wants love and power and can't get enough of either and who goes on raging and weeping in your spirit till at last your eyes are closed and all the fools say, "Doesn't he look peaceful?" It is those pent-up, craving children who make all the wars and all the horrors and all the art and all the beauty and discovery in life, because they are trying to achieve what lay beyond their grasp before they were five years old. -- Robertson Davies, "The Rebel Angels" | |
