Объяснение:
1 Loading nonresident programs as required is one task of the supervisor program.
2 Communication directly with the hardware is the role of the operating system.
3 Establishing a user interface is one of the key functions of the operating system.
4 Providing services for applications software is an additional role.
5 Supporting multiple programs and users is part of the work of mainframe operating systems.
6 Facilitating interaction between a single user and a PC is the task in most cases.
7 Processing large amounts of data quickly is one of the most important functions of computer.
8 Allowing the computer to process data faster is the main reason for installing more memory.