PRELIM REVIEWER

Question 1

What is another kind of memory that is critical when the computer is powered on?

Answer 1

Read Only Memory (ROM)

Question 2

Which of the operating system managers is responsible for starting the operation of a printer?

Answer 2

Device manager

Question 3

Which of the following is not the function of Operating System?

Answer 3

Clock Management

Question 4

By providing this service the operating system relieves the user of the worry of passing messages between processes

Answer 4

Communications

Question 5

What is the difference between a primary storage and a secondary storage?

Answer 5

Main memory is sometimes called the primary storage while secondary storage is where data is stored on hard disk.

Question 6

What controls Random Access Memory on a computer?

Answer 6

Operating System

Question 7

What happens when the space of the operating system in the memory has not been protected?

Answer 7

System will crash or stops functioning properly and exits

Question 8

Is ROM volatile?

Answer 8

False

Question 9

Read only memory chip holds what type of software?

Answer 9

Firmware

Question 10

You just turned on your computer and have yet started any application. Which software is currently inside the random access memory?

Answer 10

Operating system

Question 11

Which among the operating system managers protects the space of the operating system in the memory?

Answer 11

Memory manager

Question 12

Which software is responsible for the different computer system resources?

Answer 12

Operating system

Question 13

Which of the operating system managers is responsible for enforcing restrictions on who has access to which files?

Answer 13

File manager

Question 14

A user sends a print job to a printer. But the printer did not print anything. What is the responsibility of the operating system in this situation?

Answer 14

Provide an exact error message to the user.

Question 15

An operating system service that is provided to the user whenever the user issues a command

Answer 15

Program execution

Question 16

This operating system contains no permanent data storage devices to be managed.

Answer 16

Distributed

Question 17

Type of OS allow more than one user to make use of the operating system resources at the same time?

Answer 17

Networked

Question 18

When the operating system stores data into the computer’s RAM and manipulates the data, the operating system is said to be doing what?

Answer 18

The OS is using the CPU to perform on the data

Question 19

Which of the following computer characteristics refers to the ability of the computer to perform a variety of tasks?

Answer 19

Versatility

Question 20

The following are operating system services except for:

Answer 20

Accountant

Question 21

Batch OS

Answer 21

Computer operators

Question 22

Time-sharing OS

Answer 22

Time quantum

Question 23

Distributed OS

Answer 23

Consists of CPU and memory

Question 24

Networked OS

Answer 24

Client and Server

Question 25

Real-time OS

Answer 25

Quick Response Time

Question 26

First generation

Answer 26

Large amount of heat and unreliable

Question 27

Second generation

Answer 27

IBM 1401

Question 28

Third generation

Answer 28

First time use of mouse and keyboard

Question 29

Fourth generation

Answer 29

Foundation of the internet

Question 30

Fifth generation

Answer 30

Present Generation

Question 31

A memory allocation scheme in which jobs are given as much memory as they request when they are loaded for processing, thus creating their own partitions in main memory.

Answer 31

Dynamic

Question 32

Which of the following memory management schemes allows memory to be allocated to only one program (or job) at a time?

Answer 32

Single-user contiguous scheme

Question 33

In this scheme, the memory manager relocates all the free partitions

Answer 33

Relocatable dynamic allocation

Question 34

Which of the following memory management schemes does not allow multiprogramming?

Answer 34

Single-user contiguous scheme

Question 35

Is the process of freeing an allocated resource, like memory space

Answer 35

deallocation

Question 36

What is the issue of relocatable dynamic allocation?

Answer 36

Overhead

Question 37

Which of the following are the disadvantages of a fixed partition scheme?

Answer 37

If the partition sizes are too big, memory is wasted Requires that the entire program be stored contiguously in the memory

Question 38

Why do you need System Calls in OS?

Answer 38

``` File Manipulation Process Control Device Management Information Maintenance Communications ```

Question 39

First-fit memory allocation

Answer 39

first partition fitting the requirements

Question 40

Best-fit memory allocation

Answer 40

smallest partition fitting the requirements

Question 41

Worst-fit

Answer 41

allocates largest free available block to new job