Answer:
User Interface.user interface (UI) is the space where interactions between humans and machines occur. ... Other terms for human-machine interfaces are man-machine interface (MMI) and, when the machine in question is a computer, human-computer interface.
Program Execution.Execution in computer and software engineering is the process by which a computer or virtual machine executes the instructions of a computer program
File system manipulation.File System Manipulation in Operating System
Programs need has to be read and then write them as files and directories. File handling portion of operating system also allows users to create and delete files by specific name along with extension, search for a given file and / or list file information
Input / Output Operations.The stream flowing from an input device like a keyboard to the main memory, it is called the Input Operation. On the other hand, streams that flow from the main memory to an output device like a screen is called an Output Operation
Error Detection.error detection is the use of redundancy bits, where additional bits are added to facilitate detection of errors.
