It follows the normal convention of BODMAS , which is the order of precedence of operations , so the answer equals to 26
Answer:
c. graphical user interface
Explanation:
An operating system may be defined as the system software which manages the various computer hardware, resources, software and also provides other computer services. It communicates the user with the computer and the computer runs according to the instruction provided by the operating system. It is commonly known as the OS.
Operating system does not provide any graphical user interface. It consists of necessary components of the software to facilitate the usage or running of the computer.
