MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -In the 1960s and 1970s Dennis Ritchie and Ken Thompson invented Unix, arguably the world’s most important computer operating system.

Detailed explanation-2: -Dennis Ritchie and Ken Thompson’s creation of the UNIX operating system and the C programming language were pivotal developments in the progress of computer science. Today, 50 years after its beginnings, UNIX and UNIX-like systems continue to run machinery from supercomputers to smartphones.

Detailed explanation-3: -Thompson worked at Bell Labs for most of his career where he designed and implemented the original Unix operating system. He also invented the B programming language, the direct predecessor to the C programming language, and was one of the creators and early developers of the Plan 9 operating system.

Detailed explanation-4: -The present owner of the trademark UNIX is The Open Group, an industry standards consortium.

Detailed explanation-5: -Kenneth Thompson & Dennis Ritchie Develop UNIX, Making Open Systems Possible. . This was the first operating system designed to run on computers of all sizes, making open systems possible.