Describe, in your own words, the concept of orthogonality in programming language design.

Describe, in your own words, the concept of orthogonality in
programming language design.

. What is the primary reason why PL/I became more widely used than
ALGOL 68?

. What are the arguments both for and against the idea of a type less
language?

. Are there any logic programming languages other than Prolog?