Ctrl+Alt+Del

Ctrl+Shift+Del

Ctrl+Alt+4

Ctrl+Alt+F10

end

close

exit

none

USA

UK

INDIA

China

Visual Information Resources Under Siege

Vital Information Resources Under Stage

Vital Information Resources Under Siege

Viral Information Resources Under Siege

Lollipop

Marshmallow

Nougat

Oreo

Bluetooth And Other Device

Printer

Printers And Scanners

Scanners

Start menu

File explorer

Control panel

Default programs

screen

screenshot

prt scr

print

An Operating System itself

Complete software package

Program in execution

Interrupt handler

Window key + A

Window key + F

Window key + E

Window key + D

1 → 2 → 3 → 4

2 → 1 → 3 → 4

3 → 4 → 2 → 1

4 → 3 → 2 → 1

Application layer

Kernel

Middleware

Shell

Microprocessor architecture / CPU architecture

Web Browser

Search Engine

Operating System

Input

Output

Operating system

Hardware

D78

D71

32F

1AF

Control Panel

Dynamic data exchange

File manager

None of the above

2

4

1

6

Task Manager

Task Bar

Program Manager

Device Driver

A-1, B-2, C-3, D-4

A-3, B-4, C-2, D-1

A-2, B-1, C-4, D-3

A-4, B-3, C-1, D-2

Dot

@

#

$

Input

output

operating system

hardware

end

close

exit

none

Html

Exml

Xml

Bip

Seek time + latency time

Seek time

Seek time - latency time

Latency time

1-F, 2-D, 3-C, 4-E

1-B, 2-E, 3-D, 4-F

1-A, 2-B, 3-C, 4-D

1-D, 2-C, 3-B, 4-A

/boot

/etc

/bin

/sbin

F1

F2

F3

F4

Directly interact with hardware

Maintain and optimize the performance of a computer

Execute programs in RAM

Control file system operations

CPU

ALU

Kernel

Processor

Increased throughput

Shorter response time

Decreased operating system overhead

Ability to assign priorities to jobs

Providing predictable and fast response times

Efficient multitasking

To provide a graphical user interface for applications

High graphical performance

Memory

Hardware

Peripheral

Screen

1-B, 2-C, 3-A, 4-D

1-D, 2-E, 3-B, 4-C

1-C, 2-F, 3-B, 4-A

1-F, 2-D, 3-C, 4-E

1 → A, 2 → B, 3 → D, 4 → C

1 → B, 2 → A, 3 → C, 4 → D

1 → C, 2 → A, 3 → D, 4 → B

1 → E, 2 → F, 3 → A, 4 → B

To change file permissions

To reduce the file size for easier storage and sharing

To encrypt files for security

To convert files into a different format

.jpg

.gif

.png

All of the above

CREATE

CD

DIR

MD or MKDIR

Photoshop

MS Word

Skype

LibreOffice

\bin

\etc

\dev

\root

1 → 4 → 3 → 2

4 → 3 → 2 → 1

3 → 2 → 4 → 1

4 → 1 → 2 → 3

Backslash (\)

Asterisk (*)

underscore(_)

Question Mark (?)

.odt

.ods

.odp

.rtf

COPY

DISKCOPY

CHKDSK

TYPE

Shell

Assembler

Terminal

None of these

Application software

Productivity software

System software

Business software

Taskbar

status bar

Manubar

Title bar

I/O

Process management

Compilation

File management

Kernel

Terminal

Shell

Command

Sound

Mouse

Keyboard

Admin Account

Command Prompt

Task Manager

Settings

Disk Manager