None of the categories seem to match, but I'll choose "Computer & Technology" based on the closest parent category.

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Computer Programming

Computer Science & Technology or simply 'Technology & Programming' though a subcategory of technology is not clearly defined can fit as a parent category so its categorized under Technology & Programming.

Computer Programming & IT / Technology & Programming

Technology & Computer Programming

Computer Science

Computer tool/ utility based program with keypads, suggesting Technology

Computer Science

Computer & the Internet/Technology & Programming

Computer Software (Technology & Programming) or Technology & Programming.

With the entities being symbols it seems to represent computer keyboards ( the backslash key on keyboards )