A-Level Computer Science 1.2.1 Operating systems

The function of system software is to serve as the _________ between the user, the application software, and the computer’s hardware

• interface

• program

• application

• server

What is the kernel of the operating system?

• The parts of the OS that interact with peripherals

• Central components of the operating system

• The part of the OS that are not loaded into memroy

• The start-up instructions for the computer

What is a multitasking computer?

• Multiple users can be logged in at the same time

• A CPU core that can run more than one process at a time

• Multiple programs can be running at the same time

• A computer that can handle multiple input devices.

What is a multi-user operating system?

• Computer tasking shared by people

• multiple users can log in a use the computer at the same time

• In on the cloud supported

• Each user has one porcess

Which of these is NOT a task of Operating Systems

• communicating with the user

• communicating with the hardware

• managing memory

• browsing the Internet

A signal sent by a hardware or software to the CPU indicating that something needs attention is...

• a system call

• interrupt

• paging

• blocking

Process management....

• allocates time for processes to use the CPU

• is responsible for creating, deleting, renaming of files and folders

• stores programs and data that are presently being used by the CPU

• is the method by which the user interacts with the computer system

Memory management....

• allocates time for processes to use the CPU

• is responsible for creating, deleting, renaming of files and folders

• organises programs and data that are presently being used by the CPU

• is the method by which the user interacts with the computer system

File management....

• allocates time for processes to use the CPU

• is responsible for creating, deleting, renaming of files and folders

• stores programs and data that are presently being used by the CPU

• is the method by which the user interacts with the computer system

How does the OS provide memory management?

• By moving data to secondary storage

• By allocating processor time between different programs

• By making the communication possible between the input and output devices and the computer

• By allocating areas of memory to different programs so that each program can run effectively