FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A successor to the programming language B, C was originally developed at Bell Labs by Ritchie between 1972 and 1973 to construct utilities running on Unix. It was applied to re-implementing the kernel of the Unix operating system. During the 1980s, C gradually gained popularity.

Detailed explanation-2: -Unix distinguishes itself from its predecessors as the first portable operating system: almost the entire operating system is written in the C programming language, which allows Unix to operate on numerous platforms.

Detailed explanation-3: -Unix–trademarked as UNIX–is a multiuser, multitasking operating system (OS) designed for flexibility and adaptability. Originally developed in the 1970s, Unix was one of the first OSes to be written in the C programming language.

Detailed explanation-4: -Dennis MacAlistair Ritchie (September 9, 1941 – c. October 12, 2011) was an American computer scientist. He is most well known for creating the C programming language and, with long-time colleague Ken Thompson, the Unix operating system and B programming language.

Detailed explanation-5: -2) The C compiler used for UNIX operating system is The correct option is (a). Explanation: Compiler used for UNIX is ‘cc’ their full form is C compiler. gcc is compiler for linux.