The IB Computer Science SL course focuses on software development, fundamentals of computer systems, and the relationship between computing systems and society. The Higher-Level (HL) course extends learning begun in IB Computer Science SL and encompasses all of these elements; but is extended to include an advanced/investigative case study, computer mathematics and logic, advanced data structures and algorithms, further system fundamentals, and file organization. This course prepares students for taking the Higher-Level exam in May.