Final answer:
Third generation computers used high-level programming languages, real-time operating systems, and magnetic core memory.
Explanation:
Third generation computers were characterized by the use of high-level programming languages like C++ instead of low-level languages, such as assembly language. They also utilized real-time operating systems (OS) for quicker response and better management of processes. In addition, third-generation computers transitioned to using magnetic core memory as primary storage instead of magnetic drum memory.
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