★ Must-know
In 1972, Dennis Ritchie developed C at Bell Laboratories to write the UNIX operating system.
C is an imperative, procedural, general-purpose programming language.
Further detail
C is strongly associated with UNIX because it was developed to write that operating system.
C is used to develop operating systems, databases, and embedded systems.
The course describes C as structured, relatively easy to learn, efficient, suitable for low-level activities, and compilable on various computer platforms.
The six sections of a C program are:
The preprocessor directive #include incorporates a specified file so its contents are compiled with the function being compiled.
1. Which description best identifies the C programming language?
2. Which function is required in a C program and executed first?
3. What role does a data type play when a variable is declared in C?
Who developed C at Bell Laboratories in 1972, and to write which operating system?
Dennis Ritchie developed C to write UNIX.
What six sections make up a C program?
Documentation, preprocessor directives, definitions, global declarations, the main function, and user-defined functions.
Which four purposes is C used for?
Operating systems, databases, embedded systems, and low-level activities.
What does the documentation section of a C program describe?
The program’s overview, such as its name, date, description, and title.
What does a data type specify about a variable?
The values it can store, the memory required, and the operations allowed.
What categories group C operators?
Arithmetic, relational, logical, bitwise, assignment, and miscellaneous.
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