Final answer:
Machine level language, such as machine code, was dominant in second generation computing. Low-level and high-level languages have specific characteristics and roles in programming.
Explanation:
Machine level language, also known as machine code, dominated second generation computing. Machine code is the lowest-level programming language directly executed by the CPU.
Low-level programming languages, such as assembly language, are the most similar to machine code. They are hardware-specific and not interchangeable among different types of microcontrollers.
High-level programming languages, like C, C++, or BASIC, are more generic and dominant in today's microcontrollers due to their ease of learning, interpretation, implementation, and debugging.
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