Fundamental of OS - Revision 2

A set of programs that coordinate all the activities among computer or mobile device.

• Firmware

• Operating system

Which is TRUE about Shortest Job First?

• This scheduling algorithm is optimal if all the jobs/processes are available at the same time

• Using a Queue data structure, where a new process enters through the tail of the queue, and the scheduler selects process from the head of the queue

Which is FALSE about thread?

• A segment of a process

• A segment of a speed

Describe the process and threads Lightweight?

• Process is Lightweight, Threads is not Lightweight

• Process is not Lightweight, Threads is Lightweight

What is the most important collection of system programs comprising the OS?

• Layers and Thread

• Layers and Views

Which is the TRUE about process?

• A program in instruction

• A program in execution

Major constrains in memory hierarchy are faster access speed and greater capacity

• Memory Storage

• Memory Hierarchy

Which is True about the advantages of FCFS?

• There is no option for pre-emption of a process.

• A process queue for a long time.

What is the relationships between thread and process?

• A process is an executing instance of an application and a thread is a path of execution outside a process.

• Threads within the same process share the same address space, whereas different processes do not.

This figure is referring to?

• Layers and View of Memory

• Layers and View of Computer System