|In de 60-ies there was of course Algol 60, I did a numerical analysis course
(later on I did a compiler on/for the PDP-11, and much later on a compiler Algol -> C)
Algol 60 never was popular, but according to people like Hoare and Dijkstra:
"Algol 60 is a great improvement to its successors".
The language was the basis for many other languages, of course Simula and Algol 68,
but also Pascal.
In the early 70-ies there was BCPL (i.e. Basic CPL), an - at that time - a quite popular
systems implementation language (the 70-ies were the years of an explosion of languages)
Of course, BCPL was the grandfather of C.
BCPL was portable, we ported it to a PDP-9 and a Philips P860, and while not very popular there days, it still exists.
Personally, I learned programming in assembler on a PDP-8 and PDP-9, by the time we
started using PDP-11's we first had BCPL and later - with the arrival of Unix - the C language.
My favorite language was Ada, at least the 83 and 95 versions. The language was based on the
though that the readability of programs was/is essential: it still is.
The language I am using is a (subset of) C++, the reason is simple: it is available on Linux
and there are decent cross compilation facilities for Windows.
For the applications I write, I need some performance, while in a sense it is real time
processing (i.e. SDR applications), it is not hard real time. C++, when used with caution
is a decent language, with good compilers, both on Linux x86/64, Windows and RPI type systems
just my 2 cts