OPERATING SYSTEM (All 4 modules)

(a)   is an interface between user and hardware.

OS is a (a)   software

IPC stands for (a)  

A (a)   is a software generated interrupt

Mode bit 0

• Kernel Mode

• User Mode

Allocates memory location and brings the object program into memory for execution (a)  

Program under execution is (a)  

Methods of IPC?

• Shared memory system

• Message passing system

• None of the above

• Both A and B

(a)   is an integer variable

Necessary conditions for deadlock

• Mutual exclusion

• No preemption

• Hold and wait

• Circular wait