C is not an operating system, but a programming language.
An OS is a piece of software that sits between other software and hardware, facilitating communication between applications and devices, in an uniform way.
A programming language is a set of rules, like the English grammar. Any text that satisfies the rules can be compiled, resulting in a piece of software that can then be run in an OS.
C is such a programming language, popular for systems and other low level programming. It is notorious for its portability (you can write code in C and compile it for many OS's), flexibility and degree of control offered to programmer. Also notable is the fact that many OS's are originally written in C or it's off-shoot C++.
In a Windows environment, the operating system is located on the C drive in the system folders. It can be manually installed somewhere else if desired.
An operating system is mostly developed in C. C++ is less common, but used by several OS developers. There also is some operatingsystems developed in Pascal and Ruby. The last (ruby) used an interpreter in C. To load the operating system, you need a bootloader. Which is at least partially written in assembler.
The original operating system for an IBM PC with Intel Processor was DOS (disk operating system) which operated at a command level prompt of C:
why we use disk scheduling in c ?
The Operating System is located in a folder on one of the hard drives usually C:\. This is one \Windows\System32 and \Windows\winsxs. System32 is where the main operating system is but the manafest files are in winsxs.
The operating system on a computer is installed on your hard drive, usually under c:
I guess you mean operating system written in C language. Two examples: Unix (and derivatives), MS Windows.
C and C++ are not directly supported by operating systems. You must use a compiler to convert a program written in C or C++ to a native executable that runs under a particular operating system. In other words, you can use C or C++ under any operating system for which a compiler exists for the desired language.
The operating system on a computer is installed on your hard drive, usually under c:
An operating system is a program that can be written in C
The Unix operating system. The first versions of the Unix operating system were written in the "B" language, and later written in "C", which was invented in order to develop Unix on the PDP-11 machine.
Unix.
Android is an operating system made by Google for cell phones. It is the operating system of the popular Motorola Droid. It is programmed in the C++ programming language, and is Unix based.
C/C++ is used to write system softwares. The whole of UNIX operating system is written in C language.
In a Windows environment, the operating system is located on the C drive in the system folders. It can be manually installed somewhere else if desired.
Format drive C
MS-DOS.