Windows
Linux
Mac
All Of The Above
it is a multi-user operating system
it is a highly secure operating system
it is multitasking operating system
All of the above
Synchronous Software
Package
Middleware
OSS
Array
Stack
Linked List
Tree
Time sharing
Multitasking
Only Time sharing
Both Time sharing and Multitasking
An Operating System itself
Complete software package
Program in execution
Interrupt handler
Input
Output
Memory
Operation System
I/O
Process management
Compilation
File management
Photoshop
MS Word
Skype
LibreOffice
Desktop
Hard disk
Pendrive
Services
open
both
half open half closed
off
screen
screenshot
prt scr
print
DOS
UNIX
ULTA
LINUX
Portable Document File
Portable Data Format
Portable Document Format
Partial Data File
CD
Floppy Disc
Hard Disc
DVD
62
128
256
Unlimited
Application software
Productivity software
System software
Business software
Ctrl+Alt+Del
Ctrl+Shift+Del
Ctrl+Alt+4
Ctrl+Alt+F10
\bin
\etc
\dev
\root
CPU
ALU
Kernel
Processor