Concept:First-generation computers used machine language, which is a type of low-level programming language, to execute instructions.
Explanation:First-generation computers were built using vacuum tubes for processing and memory.
They were programmed directly in machine language, using binary codes of
0s and
1s.
Machine language is considered a low-level programming language because it is closely tied to the computer hardware.
High-level, object-oriented, and procedural programming languages were developed much later in computer history.
Therefore, among the given choices, first-generation computers made use of low-level programming.
Answer:A. low level programming