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07 Apr 08

Coming soon: superfast internet - Times Online

  • THE internet could soon be made obsolete. The scientists who pioneered it have
    now built a lightning-fast replacement capable of downloading entire feature
    films within seconds.

  • Ian Bird, project leader for Cern’s high-speed computing project, said grid
    technology could make the internet so fast that people would stop using
    desktop computers to store information and entrust it all to the internet.


    “It will lead to what’s known as cloud computing, where people keep all their
    information online and access it from anywhere,” he said.

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21 Jan 08

apophenia: The Economist Debate on Social "Networking"

  • Educational pedagogy has swung over the years between focusing on individual-centered learning, group learning, and peer-to-peer learning. If you take a peer-to-peer learning approach, you are inherently valuing the social networks that youth have and maintain, or else you are encouraging them to build one. These networks are mediated and reinforced through SNSs. If there is pedagogical value to encouraging peers to have strong social networks, then there is pedagogical value in supporting their sociable practices on SNSs.
  • This not to say that technology doesn't belong in the classroom. Information access tools like Wikipedia and Google are tremendously valuable for getting access to content and should be strongly encouraged and taught through the lens of media literacy. Email, IM, or other communication tools can be super useful for distributing content to the group or between individuals or even providing a channel for group discussion (in-class or out). Blogging tools and group sharing tools are also quite valuable. Having to produce for the group instead of the teacher can work as a powerful incentive; most youth don't want to be embarrassed in front of their peers and pressure to perform can be leveraged to the teacher's advantage. But why social network sites? To the degree that they support blogging and group sharing, sure... but that's not the key point of them at all. They key features that make them unique are: profiles plus visible, articulated and surfable friends' lists. I simply don't get why these are of value in the classroom.
14 Aug 07

Anatomy of the Linux networking stack

  • One of the greatest features of the Linux® operating system is its networking
    stack. It was initially a derivative of the BSD stack and is well organized with
    a clean set of interfaces. Its interfaces range from the protocol agnostics,
    such as the common sockets layer interface or the device layer, to the specific
    interfaces of the individual networking protocols. This article explores the
    structure of the Linux networking stack from the perspective of its layers and
    also examines some of its major structures.
16 Jun 07

一个分享的时代----一些统计显示，用户更愿意和少数人，进行多次分享

  • 这批网页留言服务新军意外地发现，用户不太喜欢将个人评论与所有人分享，而是更愿意有选择性地设定为只让少数好友看到。德国企业家赞腾(Boris Veldhuijzen van Zanten)去年创建的Fleck可以让用户在浏览的网页上发表及分享评论，他说用户的使用习惯令他们十分吃惊。他们觉得很多用户都会每天用一次、和许多人分享，但实际上他们却是每天用30次、同少数人分享。
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