C is one of the oldest and most influential programming languages, and its standard character set is ASCII. C is widely used for system programming, embedded applications, operating systems, compilers, and libraries.
Python is a high-level, interpreted, and general-purpose programming language, and its default source code encoding is ASCII. Python is popular for scripting, data science, web development, and automation.
Java is a compiled, object-oriented, and platform-independent programming language, and its default source file encoding is ASCII. Java is widely used for enterprise applications, web development, mobile development, and distributed systems.
Perl is a dynamic, interpreted, and multi-paradigm programming language, and its default source code encoding is ASCII. Perl is known for its text processing, regular expressions, and system administration capabilities.
Ruby is an interpreted, general-purpose, and expressive programming language, and its default source code encoding is ASCII. Ruby is popular for web development, especially with the Ruby on Rails framework, and for domain-specific languages.