Computer Science · Operating Systems
Which of the following statements are true regarding the UNIX operating system? 1. It is a multi-user, multi-tasking operating system. 2. Ken Thompson and Dennis Ritchie developed it at Bell Labs in the early 1970s. 3. It was one of the first operating systems to be written in a high-level language (C). 4. It was originally written entirely in C++ language.
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