反白論前傳:教科書 篇

Even college textbooks are bad. When you get to college, you’ll find that (with a few stellar exceptions) the textbooks are not written by the leading scholars in the field they describe. Writing college textbooks is unpleasant work, done mostly by people who need the money. It’s unpleasant because the publishers exert so much control, and there are few things worse than close supervision by someone who doesn’t understand what you’re doing. This phenomenon is apparently even worse in the production of high school textbooks.

— Paul Graham

2010.08.29 Sunday ACHK

Startup 2

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Startups in 137 chars: Make something someone specific needs, launch fast, let users show you what to change, change it, repeat last two.

— Paul Graham

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2010.08.29 Sunday ACHK

心靈作業系統 5.2

「Virtual Machine」(虛擬機器)的另外一個用途是:

有一個程式(A)很吸引,你很想買來用。但是,程式 A 只可以在 Microsoft Windows(視窗)上運行。而你電腦的作業系統(Operating System)卻是 MacOS(蘋果電腦作業系統)。解決的辦法是,你可以在你的 MacOS 上,先安裝一個 Virtual Machine 程式,然後再在 Virtual Machine 上,安裝一個 Microsoft Windows。那樣,你就可以安裝 程式 A 來使用,而毋須特意買過另一部(以 Microsoft Windows 為作業系統的)電腦。

作暫時的總結:

如果有一個程式(A),與你電腦的作業系統不 compatible(兼容),而你又堅持要用的話,你可以:

1. 更換作業系統,或者 買另一部(用另一個作業系統的)電腦;或

2. 修改原本的作業系統,令它與新程式兼容:前提是,你電腦的作業系統是 open source(開源,開放源程式碼)的;或

3. 在原本的作業系統上,安裝一個 Virtual Machine。再在 Virtual Machine 上,安裝另一個作業系統。

— Me@2010.08.29

2010.08.29 Sunday (c) All rights reserved by ACHK