Answer:
Interrupt (INT) helps operating system to stop work on one process and start work on other process using interrupt signals.
Explanation:
Purpose of interrupts:
• Interrupts are useful when an I/O device needs to be serviced only occasionally at low data transfer rate.
• For example, when a peripheral requires the attention of the processor to perform an I/ O operation.
A trap:
• also known as an exception or a fault, is typically a type of synchronous interrupt caused by an exceptional condition
• is a software-generated interrupt.
• For example it's caused by division by zero or invalid memory access.
Can traps be generated intentionally by a user program? Yes.
If so, for what purpose?
• the usual way to invoke a kernel routine (a system call) because those run with a higher priority than user code.
• Handling is synchronous, so the user code is suspended and continues afterwards.
• In a sense they are active - most of the time, the code expects the trap.
Answer:
the subject of the message
the sender's name
the recipient's name
the date and time when the message was received
Explanation:
Various information is displayed in the header of the message of a received message. And they are the subject of the message, which briefs what is there inside the message. And it mentions the sender's name as well as the recipient's name, and finally, the date and the time as well are stated that explains exactly when the message was being received. And all this information is shown in the header of the message.
A constructor in object-oriented programming is a special
method of a class or structure that initializes an object of that type.
Basically, it resembles an instance method that usually has the same name as
the class. In simple terms, it is a subroutine called to create an object.
Answer:
I tried, I falid, I sorry :(
Explanation:
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