From mboxrd@z Thu Jan  1 00:00:00 1970
From: ron@ronnatalie.com (Ron Natalie)
Date: Thu, 8 Jun 2017 09:53:44 -0400
Subject: [TUHS] Array index history
In-Reply-To: <20170608061951.GD83216@server.rulingia.com>
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Original PR1MEOS was a weird beast.   Not just Fortran, but FortranIV which
is beyond the array index issues is far from a language I'd want to have to
build a lot of low level contructs in.   No structured aspects of it at all
(indeed, this was the impetus for RATFOR, though I don't think Prime ever
saw it).    They didn't stay with Fortran long.   They wrote their own PL/1
variant called PL/P a scheme also implemented at UNIVAC (PLUS) and IBM
(PL/S).    I would venture that C was the only systems implementation
language that made the leap into a general purpose language.