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WorksheetsUnit 5: Operating Systems
Total questions: 112
Worksheet time: 1hrs 24mins
Name
Class
Date
1.
Any device added to a computer that performs an additional capability or feature but is not required. A good example of an accessory is the computer printer, which gives the computer the ability to print.
a)
Accessory
b)
Kernel
c)
Vm (Virtual Machine)
d)
Program
e)
Linux
2.
has 55.66% Operating System Market Share for Tablets
a)
Android
b)
Android
c)
Mac OS
d)
Windows 7
e)
Linix
3.
has 55.66% Operating System Market Share for Tablets
a)
Android
b)
Android
c)
Mac OS X 10.14
d)
Mac OS
e)
Windows 8.1
4.
has 70.29% Operating System Market Share for Mobiles
a)
Android
b)
Android
c)
iOS
d)
Mac OS
e)
Windows XP
5.
has 70.29% Operating System Market Share for Mobiles
a)
Android
b)
Android
c)
iOS
d)
Android
e)
Windows XP
6.
the task that the computer works on when the foreground task is not active
a)
Background Task
b)
Linux
c)
Windows
d)
Restoring
e)
Logical Device
7.
the process of copying the data to another medium so that a duplicate is available for use should the original copy be destroyed or become unusable
a)
Backing Up
b)
Logical Device
c)
Windows For Workgroups
d)
Semaphore
e)
Multitasking
8.
a range of frequencies within a given band, in particular that used for transmitting a signal.
a)
bandwidth
b)
process scheduler
c)
main memory
d)
queue
e)
Batch Processing
9.
is the running of "jobs that can run without end user interaction, or can be scheduled to run as resources permit.
a)
Batch Processing
b)
Device Drivers
c)
Multitasking
d)
dynamic memory allocation
e)
time-sharing
10.
start (a computer) and put it into a state of readiness for operation.
a)
Booting
b)
Multitasking
c)
Windows Nt, Windows 95, And Os/2
d)
Sign In
e)
Multitasking
11.
In computer science, a cache is a component that transparently stores data so that future requests for that data can be served faster.
a)
Cache
b)
Multitasking
c)
X (X Window System)
d)
Sign Out
e)
Operating System
12.
is a data input device that reads data from a card-shaped storage medium. The first were punched card readers, which read the paper or cardboard punched cards that were used during the first several decades of the computer industry to store information and programs for computer systems.
a)
card reader
b)
Peripherals
c)
input / output hardware
d)
Virtual memory
e)
memory protection
13.
a text-only link between a computer and its operator The technician enjoyed administering the Unix server with the CLI tools.
a)
CLI (command line interface)
b)
Operating System
c)
Windows 10
d)
Single-Program Execution
e)
OS (operating system)
14.
the operating speed of a computer or its microprocessor, defined as the rate at which it performs internal operations and expressed in cycles per second (megahertz)."the processor is available in 25MHz, 33MHz, and 40MHz clock speeds"
a)
Clock Speed
b)
Performance Speed
c)
job scheduler
d)
resources
e)
card reader
15.
the practice of using a network of remote servers hosted on the Internet to store, manage, and process data, rather than a local server or a personal computer.
a)
Cloud
b)
OS (operating system)
c)
Accessory
d)
System 7
e)
Physical Device
16.
a method in which commands are entered by typing them on a keyboard
a)
Command Line Entry
b)
Physical Device
c)
Background Task
d)
Time Slicing
e)
Program
17.
a method of packing data in order to save disk storage space or download time Zip and mp3 are examples of two common file compression algorithms.
a)
Compression
b)
Program
c)
Backing Up
d)
Tree Structure
e)
Restoring
18.
refers to the process of making the desired match between logical and physical computer devices
a)
Configuring
b)
Restoring
c)
Booting
d)
Virtual Memory
e)
Semaphore
19.
Operating systems often start daemons at boot time and serve the function of responding to network requests, hardware activity, or other programs by performing some task.
a)
Daemon
b)
Semaphore
c)
Cache
d)
Vm (Virtual Machine)
e)
Sign In
20.
It is the process of taking encoded or encrypted text or other data and converting it back into text that you or the computer can read and understand.
a)
Decryption
b)
Sign In
c)
CLI (command line interface)
d)
Windows
e)
Sign Out
21.
software which converts the data from a component or peripheral into data that an operating system can e The IT support technician asked the end if he had recently updated any device drivers.
a)
Device Driver
b)
Sign Out
c)
Cloud
d)
Windows For Workgroups
e)
Single-Program Execution
22.
is a computer program that operates or controls a particular type of device that is attached to a computer. A driver provides a software interface to hardware devices, enabling operating systems and other computer programs to access hardware functions without needing to know precise details about the hardware being used.
a)
Device Drivers
b)
Multitasking
c)
dynamic memory allocation
d)
time-sharing
e)
Unix
23.
the operating system originally used on IBM PCs
a)
DOS
b)
Single-Program Execution
c)
Command Line Entry
d)
Windows Nt, Windows 95, And Os/2
e)
System 7
24.
the term usually used in the PC word to refer to extensions to the operating system
a)
Drivers
b)
System 7
c)
Compression
d)
X (X Window System)
e)
Time Slicing
25.
is when an executing program requests that the operating system give it a block of main memory. The program then uses this memory for some purpose. Usually the purpose is to add a node to a data structure. In object oriented languages, dynamic memory allocation is used to get the memory for a new object.
a)
dynamic memory allocation
b)
time-sharing
c)
Unix
d)
Fortran
e)
C++
26.
The process of converting information or data into a code, especially to prevent unauthorized access. "I use encryption to protect sensitive information transmitted online"
a)
Encryption
b)
Time Slicing
c)
Configuring
d)
Windows 10
e)
Tree Structure
27.
portion of the operating system that acts as the manager of all other operating system functions and provides the interface between user demands and the capabilities of the other parts of the operating system
a)
Executive
b)
Tree Structure
c)
Daemon
d)
Accessory
e)
Virtual Memory
28.
an addition to the Macintosh operating system to provide additional functionality
a)
Extensions
b)
Virtual Memory
c)
Decryption
d)
Background Task
e)
Vm (Virtual Machine)
29.
the instructions to carry out functions or commands that reside on a disk and are loaded into memory as a program and executed
a)
External Commands And Transients
b)
Vm (Virtual Machine)
c)
Device Driver
d)
Backing Up
e)
Windows
30.
used in Windows to look at directories and to copy, move, and erase files
a)
File Manager
b)
Windows
c)
DOS
d)
Booting
e)
Windows For Workgroups
31.
a set of strict rules for controlling read, write, and execute access to a file or directory The company switched from FAT32 to NTFS file system because the former did not support file permissions.
a)
File Permissions
b)
Windows For Workgroups
c)
Drivers
d)
Cache
e)
Windows Nt, Windows 95, And Os/2
32.
a shell or application used by the Macintosh to launch programs, show the contents of disks, and move, copy, or delete files
a)
Finder
b)
Windows Nt, Windows 95, And Os/2
c)
Encryption
d)
CLI (command line interface)
e)
X (X Window System)
33.
the task which receives processor time priority, usually the one with which the user is interacting
a)
Foreground Task
b)
X (X Window System)
c)
Executive
d)
Cloud
e)
Windows 10
34.
prepare a device to store data, erasing any existing data One mt format a flash memory drive or a hard disk drive before it can be ed to store data.
a)
Format
b)
Windows 10
c)
Extensions
d)
Command Line Entry
e)
Accessory
35.
prepares the disk surface for storing data
a)
Formatting
b)
Accessory
c)
External Commands And Transients
d)
Compression
e)
Background Task
36.
an icon-based link between a computer and its operator Most users prefer an icon-based GUI over a command line option.
a)
Gui (Graphical User Interface)
b)
Background Task
c)
File Manager
d)
Configuring
e)
Backing Up
37.
a file which does not appear by default in a directory listing; normally for security reasons or to spare confine in end us¬¬¬ers the administrator was upset when the end user found a way to display and then delete several hidden files.
a)
Hidden File
b)
Backing Up
c)
File Permissions
d)
Daemon
e)
Booting
38.
a structure used by most operating system in which the directory is arranged as an inverted tree with multiple branches
a)
Hierarchical Directory Structure
b)
Booting
c)
Finder
d)
Decryption
e)
Cache
39.
is a hardware device that has the ability to accept inputted, outputted or other processed data. It also can acquire respective media data as input sent to a computer or send computer data to storage media as storage output.
a)
input / output hardware
b)
Virtual memory
c)
memory protection
d)
Kernel
e)
Cobol
40.
is an MS-DOS command that is stored in the system memory and loaded from the command.com or cmd.exe.
a)
Internal Command
b)
Cache
c)
Foreground Task
d)
Device Driver
e)
CLI (command line interface)
41.
has 29.14% Operating System Market Share for Mobiles
a)
iOS
b)
iOS
c)
iPadOS
d)
Linix
e)
Mac OS X 10.13
42.
has 29.14% Operating System Market Share for Mobiles
a)
iOS
b)
iOS
c)
iPadOS
d)
iOS
e)
Mac OS X 10.13
43.
has 36.92% Operating System Market Share for Tablets
a)
iOS
b)
iOS
c)
Linix
d)
Mac OS X 10.14
e)
Android
44.
has 36.92% Operating System Market Share for Tablets
a)
iOS
b)
Unix
c)
Windows 8.1
d)
Linix
e)
Windows XP
45.
has 7.41% Operating System Market Share for Tablets
a)
iPadOS
b)
iPadOS
c)
Windows 10
d)
Windows 8.1
e)
iOS
46.
has 7.41% Operating System Market Share for Tablets
a)
iPadOS
b)
Windos 95
c)
Windows XP
d)
Windows 10
e)
Mac OS X 10.13
47.
is a computer application for controlling unattended background program execution of jobs.This is commonly called batch scheduling, as execution of non-interactive jobs is often called batch processing, though traditional job and batch are distinguished and contrasted;
a)
job scheduler
b)
resources
c)
card reader
d)
Peripherals
e)
input / output hardware
48.
In computing, the kernel is a computer program that manages input/output requests from software and translates them into data processing instructions for the central processing unit and other electronic components of a computer.
a)
Kernel
b)
CLI (command line interface)
c)
Format
d)
DOS
e)
Cloud
49.
is a computer program at the core of a computer's operating system with complete control over everything in the system.It is an integral part of any operating system. It is the "portion of the operating system code that is always resident in memory". It facilitates interactions between hardware and software components. On most systems, it is one of the first programs loaded on startup (after the bootloader). It handles the rest of startup as well as input/output requests from software, translating them into data-processing instructions for the central processing unit. It handles memory and peripherals like keyboards, monitors, printers, and speakers.
a)
Kernel
b)
Cobol
c)
Python
d)
Java
e)
MIT Scratch
50.
has 1.32% Operating System Market Share by version for Desktops
a)
Linix
b)
Linix
c)
Android
d)
Windows
e)
Windows 8.1
51.
has 1.32% Operating System Share by Version for Desktops
a)
Linix
b)
Linix
c)
Android
d)
Windows Phone OS
e)
Windows 8.1
52.
has 1.78% Operating System Market Share for Desktops
a)
Linix
b)
Linix
c)
Windows 8.1
d)
Mac OX X 10.15
e)
iOS
53.
has 1.78% Operating System Market Share for Desktops
a)
Linix
b)
Linix
c)
Windows 8.1
d)
Mac OX X 10.15
e)
iOS
54.
an open source version of Unix developed by Lin Torvalds Linux was originally developed by Lin Torvalds, who wanted a free Unix-like operating system that ran on standard PC hardware.
a)
Linux
b)
Command Line Entry
c)
Gui (Graphical User Interface)
d)
Encryption
e)
Compression
55.
devices that operating systems are frequently designed to use on a generic basis
a)
Logical Device
b)
Compression
c)
Hidden File
d)
Executive
e)
Configuring
56.
has 9.33% Operating System Market Share for Desktops
a)
Mac OS
b)
Mac OS
c)
Mac OS X 10.14
d)
Mac OS X 10.13
e)
Android
57.
has 9.33% Operating System Market Share for Desktops
a)
Mac OS
b)
Mac OS
c)
Mac OS X 10.14
d)
Mac OS X 10.13
e)
Android
58.
has 1.65% Operating System Market Share by version for Desktops
a)
Mac OS X 10.13
b)
Mac OS X 10.13
c)
iOS
d)
iOS
e)
Windows 7
59.
has 1.65% Operating System Share by Version for Desktops
a)
Mac OS X 10.13
b)
Mac OS X 10.13
c)
iOS
d)
iOS
e)
Mac OS X 10.14
60.
has 4.38% Operating System Market Share by version for Desktops
a)
Mac OS X 10.14
b)
Mac OS X 10.14
c)
Mac OX X 10.15
d)
iOS
e)
Mac OS
61.
has 4.38% Operating System Share by Version for Desktops
a)
Mac OS X 10.14
b)
Mac OS X 10.14
c)
Mac OX X 10.15
d)
iOS
e)
Linix
62.
has 1.54% Operating System Market Share by version for Desktops
a)
Mac OX X 10.15
b)
Mac OX X 10.15
c)
Windows Phone OS
d)
iPadOS
e)
Mac OS X 10.14
63.
has 1.54% Operating System Share by Version for Desktops
a)
Mac OX X 10.15
b)
Mac OX X 10.15
c)
Windows Phone OS
d)
iPadOS
e)
Windows 8.1
64.
was released on October 7, 2019. Updates included enhanced voice control, and bundled apps for music, video, and podcasts that together replace the functions of iTunes, with support for 32-bit applications being officially dropped.
a)
macOS 10.15 Catalina
b)
Mac OS X 10.4 Tiger
c)
OS X 10.9 Mavericks
d)
OS X 10.11 El Capitan
e)
Mac OS X 10.6 Snow Leopard
65.
This region of a computer, to which the central processor has immediate or direct access too.
a)
main memory
b)
queue
c)
Batch Processing
d)
Device Drivers
e)
Multitasking
66.
is a way to control memory access rights on a computer, and is a part of most modern instruction set architectures and operating systems. The main purpose of this is to prevent a process from accessing memory that has not been allocated to it. This prevents a bug or malware within a process from affecting other processes, or the operating system itself.
a)
memory protection
b)
Kernel
c)
Cobol
d)
Python
e)
Java
67.
has existed in one form or another since 1985, and it remains the most popular operating system for home and office computers. Its latest versions, including Windows 10, are also used on some tablets, and the OS is used on some web and number-crunching server computers as well. Computers from a wide variety of manufacturers can use Windows.
a)
Microsoft Windows
b)
Operating Systems
c)
Microsoft Windows 3.1
d)
Microsoft Windows 8
e)
Microsoft Windows 95
68.
is a series of operating systems produced by Microsoft and released as part of its Windows NT family of operating systems. It is the successor to Windows 8.1, released nearly two years earlier, and was released to manufacturing on July 15, 2015,
a)
Microsoft Windows 10
b)
Microsoft Windows 3.1
c)
Microsoft Windows 8
d)
Microsoft Windows NT
e)
Microsoft Windows Vista
69.
is a series of 16-bit operating environments produced by Microsoft for use on personal computers, released on April 6, 1992. The series began with Windows 3.1, which was first sold during April 1992 as a successor to Windows 3.0.
a)
Microsoft Windows 3.1
b)
Microsoft Windows 8
c)
Microsoft Windows 95
d)
Microsoft Windows Vista
e)
Microsoft Windows XP
70.
is an operating system that was produced by Microsoft as part of the Windows NT family of operating systems. It was released to manufacturing on July 22, 2009, and became generally available on October 22, that year
a)
Microsoft Windows 8
b)
Microsoft Windows 8
c)
Microsoft Windows NT
d)
Microsoft Windows XP
e)
Android
71.
introduced major changes to the operating system's platform and user interface to improve its user experience on tablets, where Windows was now competing with mobile operating systems, including Android and iOS. (general availability on October 26, 2012)
a)
Microsoft Windows 8
b)
Microsoft Windows 95
c)
Microsoft Windows Vista
d)
Android
e)
Unix
72.
Windows 9x is a generic term referring to a series of Microsoft Windows computer operating systems produced from 1995 to 2000, which were based on the Windows 95 kernel and its underlying foundation of MS-DOS, both of which were updated in subsequent versions.
a)
Microsoft Windows 95
b)
Microsoft Windows NT
c)
Microsoft Windows XP
d)
Unix
e)
iOS
73.
is a family of operating systems produced by Microsoft, the first version of which was released on July 27, 1993. It is a processor-independent, multiprocessing and multi-user operating system.
a)
Microsoft Windows NT
b)
Microsoft Windows Vista
c)
Android
d)
iOS
e)
Microsoft Windows 8
74.
is an operating system that was produced by Microsoft for use on personal computers, including home and business desktops, laptops, tablet PCs and media center PCs. Development was completed on November 8, 2006.
a)
Microsoft Windows Vista
b)
Microsoft Windows XP
c)
Unix
d)
Microsoft Windows 8
e)
Microsoft Windows 95
75.
is an operating system produced by Microsoft as part of the Windows NT family of operating systems. It was released to manufacturing on August 24, 2001, and broadly released for retail sale on October 25, 2001.
a)
Microsoft Windows XP
b)
Android
c)
iOS
d)
Microsoft Windows 95
e)
Unix
76.
an operating system that can juggle more than one action at a time
a)
Multitasking
b)
Configuring
c)
Hierarchical Directory Structure
d)
Extensions
e)
Daemon
77.
is the concurrent execution of multiple tasks (also known as processes) over a certain period of time. New tasks can interrupt already started ones before they finish, instead of waiting for them to end. As a result, a computer executes segments of multiple tasks in an interleaved manner, while the tasks share common processing resources such as central processing units (CPUs) and main memory
a)
Multitasking
b)
dynamic memory allocation
c)
time-sharing
d)
Unix
e)
Fortran
78.
software that controls the operation of the computer
a)
Operating System
b)
Decryption
c)
Kernel
d)
File Manager
e)
Device Driver
79.
define how a computer stores files, switches between different applications, manages memory, keeps itself secure, and interacts with peripherals like printers and cameras.
a)
Operating Systems
b)
Microsoft Windows 10
c)
Microsoft Windows 8
d)
Microsoft Windows 95
e)
Microsoft Windows NT
80.
is system software that manages computer hardware, software resources, and provides common services for computer programs.
a)
OS (operating system)
b)
Device Driver
c)
Kernel
d)
File Permissions
e)
DOS
81.
In computing, computer performance is the amount of useful work accomplished by a computer system. Outside of specific contexts, computer performance is estimated in terms of accuracy, efficiency and speed of executing computer program instructions. ... Low utilization of computing resource(s).
a)
Performance Speed
b)
job scheduler
c)
resources
d)
card reader
e)
Peripherals
82.
is any external device that provides input and output for the computer. For example, a keyboard and mouse are input peripherals, while a monitor and printer are output peripherals.
a)
Peripherals
b)
input / output hardware
c)
Virtual memory
d)
memory protection
e)
Kernel
83.
each of the actual peripherals attached to a computer
a)
Physical Device
b)
DOS
c)
Linux
d)
Finder
e)
Drivers
84.
is the activity of the process manager that handles the removal of the running process from the CPU and the selection of another process on the basis of a particular strategy. Process scheduling is an essential part of a Multiprogramming operating systems.
a)
process scheduler
b)
main memory
c)
queue
d)
Batch Processing
e)
Device Drivers
85.
is a list of jobs that are awaiting to be processed. When a job is sent to a queue, it is simply added to the list of jobs. Computer programs often work with queues as a way to order tasks. For example, when the CPU finishes one computation, it will process the next one in the queue.
a)
queue
b)
Batch Processing
c)
Device Drivers
d)
Multitasking
e)
dynamic memory allocation
86.
is any physical or virtual component of limited availability within a computer system. Every device connected to a computer system is a resource. Every internal system component is a resource.
a)
resources
b)
card reader
c)
Peripherals
d)
input / output hardware
e)
Virtual memory
87.
the process of copying data from the backup media to a hard disk after a failure has been rectified
a)
Restoring
b)
Encryption
c)
Multitasking
d)
Format
e)
Executive
88.
In computer science, particularly in operating systems, this is a variable or abstract data type that is used for controlling access, by multiple processes, to a common resource in a parallel programming or a multiuser environment.
a)
Semaphore
b)
Executive
c)
Multitasking
d)
Formatting
e)
Extensions
89.
to enter information related to an account name and its password in order to access a computer resource the man could not sign into his Windows computer because he forgot his username and password.
a)
Sign In
b)
Extensions
c)
Operating System
d)
Gui (Graphical User Interface)
e)
External Commands And Transients
90.
to end a session with computer or network resource the server was set to automatically sign out users after 10 minutes of inactivity.
a)
Sign Out
b)
External Commands And Transients
c)
OS (operating system)
d)
Hidden File
e)
File Manager
91.
operating system that can execute just one application program at a time
a)
Single-Program Execution
b)
File Manager
c)
Physical Device
d)
Hierarchical Directory Structure
e)
File Permissions
92.
the process of devoting a portion of processor time to each of several tasks
a)
Time Slicing
b)
Finder
c)
Restoring
d)
Kernel
e)
Foreground Task
93.
is a technique which enables many people, located at various terminals, to use a particular computer system at the same time. Time-sharing or multitasking is a logical extension of multiprogramming. Processor's time which is shared among multiple users simultaneously is termed as time-sharing.
a)
time-sharing
b)
Unix
c)
Fortran
d)
C++
e)
PL/1
94.
a type of directory structure like the scheme of a file cabinet
a)
Tree Structure
b)
Foreground Task
c)
Semaphore
d)
Kernel
e)
Format
95.
is a family of multitasking, multiuser computer operating systems that derive from the original AT&T Unix, development starting in the 1970s at the Bell Labs research center by Ken Thompson, Dennis Ritchie
a)
Unix
b)
Fortran
c)
C++
d)
PL/1
e)
MIT Scratch
96.
is a memory management technique that provides an "idealized abstraction of the storage resources that are actually available on a given machine"which "creates the illusion to users of a very large (main) memory".
a)
Virtual memory
b)
memory protection
c)
Kernel
d)
Cobol
e)
Python
97.
refers to the use of disk space to simulate memory
a)
Virtual Memory
b)
Format
c)
Sign In
d)
Linux
e)
Formatting
98.
a software program which mimics the performance of one or more hardware devices in order to run software independently of the actual hardware in order to run Java programs in Windows one needs to download an appropriate virtual machine.
a)
VM (Virtual Machine)
b)
Formatting
c)
Sign Out
d)
Logical Device
e)
Gui (Graphical User Interface)
99.
an extension to DOS that provides a graphic user interface
a)
Windows
b)
Gui (Graphical User Interface)
c)
Single-Program Execution
d)
Multitasking
e)
Hidden File
100.
has 88.29% Operating System Market Share for Desktops
a)
Windows
b)
Windows
c)
Windows 7
d)
Windows XP
e)
Windows Phone OS
101.
has 88.29% Operating System Market Share for Desktops
a)
Windows
b)
Windows
c)
Windows 7
d)
Windows XP
e)
Windows Phone OS
102.
has 51.57% for Desktops
a)
Windows 10
b)
Windows 10
c)
Windows XP
d)
Linix
e)
iPadOS
103.
has 51.57% Operating System Market Share by version for Desktops
a)
Windows 10
b)
Windows 10
c)
Windows XP
d)
Linix
e)
iPadOS
104.
has 30.38% Operating System Market Share by version for Desktops
a)
Windows 7
b)
Windows 7
c)
Mac OS X 10.13
d)
Android
e)
Windows
105.
has 30.38% Operating System Share by Version for Desktops
a)
Windows 7
b)
Windows 7
c)
Mac OS X 10.13
d)
Android
e)
Mac OS
106.
has 3.84% Operating System Market Share by version for Desktops
a)
Windows 8.1
b)
Windows 8.1
c)
Linix
d)
Windows Phone OS
e)
Linix
107.
has 3.84% Operating System Share by Version for Desktops
a)
Windows 8.1
b)
Windows 8.1
c)
Linix
d)
Windows Phone OS
e)
Windows 10
108.
has 3.00% Operating System Market Share for Mobiles
a)
Windows Phone OS
b)
Windows Phone OS
c)
Windows
d)
Windows 10
e)
Mac OX X 10.15
109.
has 3.00% Operating System Market Share for Mobiles
a)
Windows Phone OS
b)
Windows Phone OS
c)
Windows 7
d)
iPadOS
e)
Mac OX X 10.15
110.
has 1.70% Operating System Market Share by version for Desktops
a)
Windows XP
b)
Windows XP
c)
Android
d)
Android
e)
Windows 10
111.
has 1.70% Operating System Share by Version for Desktops
a)
Windows XP
b)
Windows XP
c)
Android
d)
Android
e)
Windows 7
112.
a software toolkit for UNIX systems underlying numerous GUI window managers including KDE and Gnome
a)
X (X Window System)
b)
Internal Command
c)
Tree Structure
d)
OS (operating system)
e)
Kernel
Reset
