Answer:
1) allocating RAM to open programs
2) creating and maintaining the FAT
3) coordinating the interaction between hardware and software
6) displaying the GUI
Step-by-step explanation:
An operating system is a software that supports the primary functions of a computer. The most used operating system is Microsoft Windows, but there are others like Linux and macOS. Operating systems perform tasks like the allocation of resources as memory and processors, controlling the coordination between software, hardware and users and detecting errors and problems among them. Also, operating systems create and maintain the File Allocation Table (FAT) on a hard disk and most of them use a Graphical User Interface (GUI) that allows everything to be displayed on the computer screen.