Re: What constitutes a dead computer language - cctalk

20 Jun 2026

Yes, I did early development on both. At least the interface to the OS was Pascal.   I
still have the early documentation buried in a box somewhere.
Sent from my iPhone
...
  On Jun 20, 2026, at 2:02 PM, Fred Cisin via cctalk
&lt;cctalk(a)classiccmp.org&gt; wrote:
 On Sat, 20 Jun 2026, ben via cctalk wrote:
  PL/1 and C are the only two high level languages
a operating system is written in, that I can think of that are well documented, and easily
found on the WEB. 
 I heard that all of the Lisa OS, and much of Macintosh, were written in Pascal.
(obviously other than some low-level drivers and performance critical routines?)
 Is that correct?
 http://pascal.hansotten.com/apple-lisa-pascal/
 When did Macintosh development switch to C?
 --
 Grumpy Ol' Fred             cisin(a)xenosoft.com