Module #1 - OS

Question 1

is a program or system software that acts as an interface between user and the computer hardware and controls the execution of all kinds of programs

Answer 1

Operating System

Question 2

It is not possible for the user to use any computer or mobile device without having an operating system. True or False?

Answer 2

True

Question 3

it is the CPU, memory and I/O devices, provides the basic computing resources

Answer 3

Computer Hardware

Question 4

are used to solve the computing problems of the users such as word processors, games and business programs.

Answer 4

Application Programs

Question 5

it is the one who utilize a computer or network service trying to solve different problems.

Answer 5

Users

Question 6

controls and coordinates the use of the hardware among the various application programs for the various users

Answer 6

Operating Systems

Question 7

Refers to the part of an OS, or device that allows a users to enter and receive information

Answer 7

User Interface UI

Question 8

Types of Interface

Answer 8

Command Line Interface
Batch Based Interface
Graphical User Interface

Question 9

is the central part of an OS which manages system resources and is always resident in memory

Answer 9

Kernel

Question 10

It acts like a bridge between application and hardware of the computer

Answer 10

Kernel

Question 11

It is also the first program that loads after the bootloader

Answer 11

Kernel

Question 12

is a program that loads and starts the boot time tasks and processes of an OS. It also places the OS of a computer into memory

Answer 12

Bootloader

Question 13

The user of a BOS never directly interacts with the computer. True or False?

Answer 13

True

Question 14

Every user prepares his or her job on an offline device like a punch card and submit it to the computer operator

Answer 14

Batch Operating System

Question 15

is an logical extension in which CPU switches jobs so frequently that users can interact with each job while it is running, creating interactive computing

Answer 15

Time-sharing

Question 16

another term for time-sharing

Answer 16

Multitasking

Question 17

Each user has at least one program executing in memory in Time-sharing Operating System. True or False?

Answer 17

True

Question 18

If processes don’t fit in memory what will take place in time-sharing operating system?

Answer 18

swapping

Question 19

it use multiple central processors to serve multiple real-time applications and multiple users. Data processing jobs are distributed among the processors accordingly

Answer 19

Distributed Operating System

Question 20

The processors communicate with one another through communication lines (such as high-speed buses or telephone lines). These are called?

Answer 20

loosely coupled systems or distributed systems

Question 21

it runs on a server and provides the server the capability to manage data, users, groups, security, applications, and other networking functions.

Answer 21

Network Operating Systems

Question 22

is an operating system intended to serve real-time applications that process data as it comes in, mostly without buffer delay

Answer 22

Real-Time Operating Systems

Question 23

The time interval required to process and respond to inputs is very small

Answer 23

Real-Time Operating Systems

Question 24

The time interval required to process and respond to inputs is very small in Real-Time Operating Systems. what do you call this time interval?

Answer 24

response time

Question 25

it is used when there are time requirements are very strict like missile systems, air traffic control systems, robots, etc.

Answer 25

Real-time systems

Question 26

it is also known as Mobile OS which is built exclusively for a mobile device, such as a smartphone, personal digital assistant, tablet, wearable devices or other embedded mobile OS.

Answer 26

Handheld Operating Systems

Question 27

Device controller informs CPU that it has finished its operating by causing an

Answer 27

interrupt

Question 28

is a signal emitted by hardware or software when a process or an event needs immediate attention

Answer 28

Interrupt

Question 29

It alerts the processor temporarily to a high priority process requiring interruption of the current work process and then return to its previous task

Answer 29

Interrupt

Question 30

An operating system is not interrupt driven. True or False?

Answer 30

False

Question 31

is a signal created and sent to the cpu that is caused by some action taken by a hardware device.

Answer 31

hardware interrupt

Question 32

arises due to illegal and erroneous use of an instruction or data.

Answer 32

Software interrupt

Question 33

It often occurs when an application software terminates or when it requests the operating system for some service.

Answer 33

Software interrupt

Question 34

The operating system preserves the state of the cpu by storing registers and the program counter

Answer 34

Interrupt Handling

Question 35

operating systems sends signals to each devices asking if they have a request

Answer 35

Polling

Question 36

requesting devices send interrupt to the operating systems

Answer 36

Vectored interrupt system

Question 37

operation allows OS to protect itself and other systems components

Answer 37

Dual mode

Question 38

Provides ability to distinguish when systems is running user code (1) or kernel code (0)

Answer 38

Mode bit

Question 39

Some instructions designated as privileged only executable in kernel mode

Question 40

is a way for programs to interact with the OS

Answer 40

system call

Question 41

There is one main cpu capable of executing a general purpose instruction set including instructions from user processes

Answer 41

Single Processor System

Question 42

Also known as parallel system multicore

Answer 42

Multiprocessor System

Question 43

First appeared in servers and now in smartphones and tablet computers

Question 44

Most systems used a single general purpose processor

Question 45

Each processor is assigned a specific task A boss processor controls the systems and the other processor either look to the boss for instructions or have predefined tasks

Answer 45

Asymmetric multiprocessing

Question 46

The most commonly used In which each processor performs all tasks with the operating system. All processor performs all tasks within the operating system.

Answer 46

Symmetric multiprocessing