strangest systems I've sent email from

Paul Koning paulkoning at
Wed May 18 14:17:46 CDT 2016

> On May 18, 2016, at 2:44 PM, Fred Cisin <cisin at> wrote:
> On Wed, 18 May 2016, John Willis wrote:
>> Let's not forget that the bulk of the Apple Lisa operating system and
>> at least large parts of the original Macintosh system software were also
>> implemented in Pascal (though IIRC hand-translated into 68k assembly
>> language), which was a pretty big mainstream success for proving
>> Pascal as suitable for developing systems software.
> At the time, it was sometimes interpreted differently:
> "Apple hired brilliant people for the project.  BUT, they had so little real-world experience that they didn't even realize what a mistake it would be to write an OS in a high level language. 

What a bizarre statement, given that there was plenty of precedent for doing so very successfully.

It might be a valid statement if made much more nuanced, say by talking about the slowness of the processors, or the inefficiency of the particular compilers used.  But clearly there had been successful (large scale) operating systems written in high level languages well before the Mac.


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