List the four different types of memory (fastest to slowest) found in general pu

Question

List the four different types of memory (fastest to slowest) found in general purpose computers: What is kernel mode? For port communications, the server must have this service running to receive requires from clients: What are the four steps in order that are necessary to run a program on a completely dedicated machine - a computer that is running only that program? write the C# statements to declare a thread called T1, which should run the method HaveFun() Draw the layered architecture diagram and indicate the functions of each layer Give two examples of systems calls provided by the File Management part of the OS Briefly describe a Virtual Machine and its difference from a regular computer Name the five process states of a process Circle the correct answer: This component of the Operating System arranges which process will execute next on the processor Timer scheduler I/0 Memory Register Memory COMP 3063 Operating systems, Spring 2017. Dr. A. Lodgher, MidTerm Exam 03/09/17 Page 2 of 3

Explanation / Answer

7) Two examples (with respect to Unix) of system calls provided by the File Management of the OS are:

8) Virtual Machine: A virtual machine emulates and provides the functionality of a physical computer. It may include hardware, software or both. It is installed on a system as secondary OS and behaves as the hardware it is based on.

The main idea behind virtual machines is to provide the ability to run multiple operating systems on a single computer system. It does not require any specific hardware, but more processing capacity and bandwidth to be able to handle multiple operating systems at once.

A common usage of virtual machines is in the development stages of a software when it needs to be run and tested in a separate environment.

Differences from regular computer:

9) Five process states:

10) b. Scheduler: A CPU scheduler selects one of the ready processes and allocates them to the processor for execution.

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