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{ Category Archives } Futurist

Is the Browser the New OS?

Yes, this is an old question. I still think it’s interesting. Disclaimer: I haven’t tried out a Chromebook yet. First, let’s look at the situation as of late 2012. The applications I use generally¬†fall into three categories: Web-based. Native, but easily available on Windows, Mac, and Linux. These include a file browser, a shell, Emacs, […]

Core Question

[This post is about machines used by people. I realize things are different in the server room.] We had one core per socket for a long time. When multi-cores came along, dual core seemed pretty awkward: real concurrency was possible, but with speedup bounded above by two, there wasn’t much point doing anything trickier than […]

Cyber War

I recently read Richard Clarke’s Cyber War. Although I didn’t learn anything new on the technical side, that isn’t the focus of the book. Clarke’s main agenda is to build awareness of the uniquely vulnerable position that the United States finds itself in as well as proposing national policies that might lead to a more […]

Discovering New Instructions

Sometimes I wonder what instruction sets are supposed to look like. That is, what instructions would there be if computers were redesigned by smart people who understood our fabrication capabilities and who knew what we wanted to accomplish using computers, but who didn’t care about backwards compatibility and who haven’t seen our architectures? We can […]

Can Simplicity Scale?

Software has gotten really big, with many systems — even, apparently, cars — running into the hundreds of millions of lines of code. The drawbacks of code bases this large are numerous: they are hard to understand, hard to modify, hard to test, and virtually guaranteed to contain huge numbers of bugs. My understanding is […]

Towards Tinkers

The heroes of Vernor Vinge’s The Peace War¬†are members of a scattered society of tinkers who — without any real industrial base — manage to develop and produce very high-tech devices including fast, small computers. I’m trying to figure out how realistic this is. The software side seems entirely feasible. Today’s open source community has […]

Online University

Yesterday someone in my department’s main office got a request from a student to receive credit for taking the now-infamous free online AI course from Stanford. It is routine for a university to award transfer credit for a course taken at a different school, but this case is trickier since a student taking the AI […]

A Fire Upon The Deep — Retrospective and E-book

Over the last few weeks I read A Fire Upon The Deep, surely one of the top five works of computer science fiction. The proximate reason for the re-read was the upcoming release of a sequel, Children of the Sky, which I am impatiently awaiting. I read the “special edition” which contains about 1500 of […]

Does a Simulation Really Need to Be Run?

At some point we’ll be able to run a computer simulation that contains self-aware entities. In this piece I’m not going to worry about little details such as how to tell if a simulated entity is self-aware or whether it’s even possible to run such a simulation. The goal, rather, is to look into some […]

Do Small-RAM Devices Have a Future?

Products built using microcontroller units (MCUs) often need to be small, cheap, and low-power. Since off-chip RAM eats dollars, power, and board space, most MCUs execute entirely out of on-chip RAM and flash, and in many cases don’t have an external memory bus at all. This piece is about small-RAM microcontrollers, by which I roughly […]