UGC NET / CG SET Paper 1 Important Telegram Group
(Cold Booting)
(Worm Booting)
Process management
Memory management
File system management
Device management
User interface
Input/output (I/O) management
Networking
Security
Error handling
Task scheduling
Power management
Virtualization
: Windows 11, 10, 8, 8.1, 7, Vista, XP, ME, 98, 95, MS DOS…
macOS: macOS Monterey, Big Sur, Catalina, Mojave….
Unix: FreeBSD, OpenBSD, NetBSD, Solaris, and IBM AIX.
Linux: Ubuntu, Fedora, Debian, CentOS, and Linux Mint.
Xenix: historical, extremely rare use
Android: iOS: Chrome OS: IBM z/OS: IBM i: formerly known as OS/400
A single-user operating system
MS-DOS
Microsoft Disk Operating System (MS-DOS)
Windows 95, 98, and ME
Windows XP Home Edition
macOS (Desktop Editions)
Chrome OS (Consumer Editions)
A multiuser operating system
Unix and Unix-like Systems
Windows Server
macOS (Server Edition)
IBM z/OS
VMS (OpenVMS)
AIX
HP-UX
Open-Source Operating systems:
Linux
Ubuntu
Debian
Fedora
Solus
CentOS
OpenSUSE
OpenSolaris
FreeBSD
OpenBSD
NetBSD
ReactOS
Haiku
Linux Mint
Commercial Operating Systems:
Windows
macOS
iOS
IBM z/OS
HP-UX
Solaris
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