System Implementation Languages (was Re: what was VMS/OpenVMS written in?)

Al Kossow aek at
Wed Dec 1 11:48:29 CST 2010

On 12/1/10 9:28 AM, Paco Linux wrote:

>> IIRC there was something earlier written in BCPL.

Cambridge University TRIPOS and the Alto operating system are in BCPL

The classic HP 3000 is in SPL

B5000/5500 and others in Extended Algol

UCSD Pascal in itself.

Smalltalk in itself.

The Alto Mesa system in itself

DEC SRC Topaz in Modula-2 Plus

and on and on

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