To identify the three instructions that should be highly privileged (prioritized) by the operating system (OS) from the given options, we need to consider their level of importance and the level of privilege required to execute them.

1. Switch from user to kernel mode: This instruction is highly privileged as it allows the OS to switch from user mode, where applications run, to kernel mode, where the OS has full control over the system. This is a critical operation that should be prioritized by the OS.

2. Issue a trap instruction: Traps are software interrupts that allow the OS to handle exceptional conditions or events. This instruction is also highly privileged as it enables the OS to respond to critical events and take appropriate actions. Therefore, it should be prioritized by the OS.

3. Modify entries in device-status table: This instruction is important for managing and controlling the devices connected to the system. It requires a certain level of privilege to ensure the integrity and security of the system. Therefore, it should be considered as a highly privileged instruction and prioritized by the OS.

In summary, the three instructions that should be highly privileged and prioritized by the OS from the given options are:
- Switch from user to kernel mode
- Issue a trap instruction
- Modify entries in device-status table.

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To identify the three instructions that should be highly privileged (prioritized) by the operating system (OS) from the given options, we need to consider their level of importance and the level of privilege required to execute them.

1. Switch from user to kernel mode: This instruction is highly privileged as it allows the OS to switch from user mode, where applications run, to kernel mode, where the OS has full control over the system. This is a critical operation that should be prioritized by the OS.

2. Issue a trap instruction: Traps are software interrupts that allow the OS to handle exceptional conditions or events. This instruction is also highly privileged as it enables the OS to respond to critical events and take appropriate actions. Therefore, it should be prioritized by the OS.

3. Modify entries in device-status table: This instruction is important for managing and controlling the devices connected to the system. It requires a certain level of privilege to ensure the integrity and security of the system. Therefore, it should be considered as a highly privileged instruction and prioritized by the OS.

In summary, the three instructions that should be highly privileged and prioritized by the OS from the given options are:
- Switch from user to kernel mode
- Issue a trap instruction
- Modify entries in device-status table.

Knowee AI · Accepted Answer

To identify the three instructions that should be highly privileged (prioritized) by the operating system (OS) from the given options, we need to consider their level of importance and the level of privilege required to execute them.

1. Switch from user to kernel mode: This instruction is highly privileged as it allows the OS to switch from user mode, where applications run, to kernel mode, where the OS has full control over the system. This is a critical operation that should be prioritized by the OS.

2. Issue a trap instruction: Traps are software interrupts that allow the OS to handle exceptional conditions or events. This instruction is also highly privileged as it enables the OS to respond to critical events and take appropriate actions. Therefore, it should be prioritized by the OS.

3. Modify entries in device-status table: This instruction is important for managing and controlling the devices connected to the system. It requires a certain level of privilege to ensure the integrity and security of the system. Therefore, it should be considered as a highly privileged instruction and prioritized by the OS.

In summary, the three instructions that should be highly privileged and prioritized by the OS from the given options are:
- Switch from user to kernel mode
- Issue a trap instruction
- Modify entries in device-status table.

.Identify any three instructions that should be highly privileged(prioritize) by OS from the given options.a. Set value of timer.b. Read the clock.c. Clear memory.d. Issue a trap instruction.e. Turn off interrupts.f. Modify entries in device-status table.g. Switch from user to kernel mode

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