Which mathematical software product pioneered the concept of a 'notebook interface' (combining text, code, and visualizations) that has now become standard in data science and computational mathematics?

The educational mathematics software market has transformed dramatically over the past decades, with various products rising to prominence and changing how mathematics is taught and learned. This poll tests your knowledge about the evolution of key mathematical software products that revolutionized the industry and shaped modern mathematical education and research.

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Mathematica (Wolfram Research, 1988)
MATLAB (MathWorks, 1984)
Maple (Waterloo Maple Inc., 1982)
R Statistical Computing (R Foundation, 1993)