"Object-oriented design is the roman numerals of computing."

“Where will we be ten years from now? CRT’s will be a thing of the past, multimedia will no longer be a buzzword, pen-based and voice input will be everywhere, and university students will still be editing with emacs. Pens and touchscreens are too low-bandwidth for real interaction; voice will probably also turn out to be inadequate. Mice are sure to be with us a while longer, so we should learn how to use them well.”

“One odd detail that I think was vital to how the group functioned was a result of the first Unix being run on a clunky minicomputer with terminals in the machine room. People working on the system congregated in the room - to use the computer, you pretty much had to be there. The folks liked working that way, so when the machine was moved to a different room from the terminals, even when it was possible to connect from your private office, there was still a "Unix room" with a bunch of terminals where people would congregate, code, design, and just hang out.”

“Syntax highlighting is juvenile. When I was a child, I was taught arithmetic using colored rods. I grew up and today I use monochromatic numerals.”

“On a related topic, let me say that I'm not much of a fan of object-oriented design. I've seen some beautiful stuff done with OO, and I've even done some OO stuff myself, but it's just one way to approach a problem. For some problems, it's an ideal way; for others, it's not such a good fit. OO is great for problems where an interface applies naturally to a wide range of types, not so good for managing polymorphism , and remarkably ill-suited for network computing. That's why I reserve the right to match the language to the problem, and even - often - to coordinate software written in several languages towards solving a single problem. It's that last point - different languages for different subproblems - that sometimes seems lost to the OO crowd.”

“The major things we saw wrong with Unix when we started talking about what would become Plan 9, back around 1985, all stemmed from the appearance of a network. As a stand-alone system, Unix was pretty good. But when you networked Unix machines together, you got a network of stand-alone systems instead of a seamless, integrated networked system. Instead of one big file system, one user community, one secure setup uniting your network of machines, you had a hodgepodge of workarounds to Unix's fundamental design decision that each machine is self-sufficient.”

“I started keeping a list of these annoyances but it got too long and depressing so I just learned to live with them again. We really are using a 1970s era operating system well past its sell-by date. We get a lot done, and we have fun, but let's face it, the fundamental design of Unix is older than many of the readers of Slashdot, while lots of different, great ideas about computing and networks have been developed in the last 30 years. Using Unix is the computing equivalent of listening only to music by David Cassidy.”