C is referred to as a low-level language in the sense that each instruction of the language is designed to be compiled in a number of machine instructions which are fairly predictable in terms of memory use and computational load as shown by Dell Computer Repairs.
It offers an array of integers and floats designed to be able to correspond directly to the types supported by the processor type. There is also extensive use of the concept of pointer.
It has a notion of type compound, but offers no operation that deals directly with objects of the highest level (computer file, string, list). These more advanced types should be treated by manipulating pointers and compound types.
Similarly, the language does not offer a standard object-oriented programming or exception handler system. There are standard functions for managing O and strings, but unlike other languages, has no specific operator for improved ergonomics.
This makes it easy to replace the standard functions with those specifically designed for a given program.
These characteristics make it an ideal language when trying to control the resources used, the machine code generated by compilers are relatively predictable and sometimes even optimal large number of registers on RISC machines handled by Dell Computer Repairs.
This language is extensively used in areas such as embedded programming on microcontrollers, intensive calculations, writing and operating all the modules where the processing speed is important.
It is a good alternative to assembly language in these areas, with the advantages of a more expressive syntax and portability of source code. The C language was invented to write the UNIX operating system, and is used for system programming.
Thus, the core of major operating systems like Windows and Linux are developed largely in C.
In return, the development of C programs, especially if they use complex data structures is more difficult than with higher level languages. Indeed, for the sake of performance, C language requires the user to program certain tasks (freeing memory, checking the validity indices on tables), which are supported automatically in high-level languages.
Stripped of the conveniences provided by the standard library, C is a simple language. This is reflected in the time to develop a C compiler for a new processor architecture.
Software libraries of C programming language
The normalized standard library is available with all implementations, this simplicity is associated with a low-level language. Here is a list of some headers declaring the types and functions of the standard library:
The normalized standard library provides no support for GUI, network, I/O on parallel or serial port, real-time systems, processes or threads, or the advanced error handling (as with structured exception).
