APPLICATION SYSTEM SOFTWARE
SYSTEMS SOFTWARE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
the OS divides processor time between open applications and may priortise certain processes in order for instructions to be executed in the most efficient order
|
|
|
the OS has to make sure the applications don’t overwrite or interfere with each other. The memory manager allocates certain applications certain memory addresses, to make sure their processes are placed into separate locations
|
|
|
the OS is responsible for the organisation of data in a usable structure, allowing users to edit, delete and move files/ data
|
|
|
the OS is responsible for user accounts, where different users have different levels of access and can be granted access to specific data or resources. Each user has their own personal data separate from other users
|
Detailed explanation-1: -Processor management is an execution unit in which a program operates. The operating system determines the status of the processor and processes, selects a job and its processor, allocates the processor to the process, and de-allocates the processor after the process is completed.
Detailed explanation-2: -An operating system has three main functions: (1) manage the computer’s resources, such as the central processing unit, memory, disk drives, and printers, (2) establish a user interface, and (3) execute and provide services for applications software.
Detailed explanation-3: -Processor Management This function of OS is called process scheduling. An operating system performs the following activities for processor management. Keeps tracks of the status of processes. The program which perform this task is known as traffic controller.
Detailed explanation-4: -An operating system is a program on which application programs are executed and acts as a communication bridge (interface) between the user and the computer hardware. The operating system also includes programs to manage traffic controllers, a scheduler, a memory management module, I/O programs, and a file system.