Linux Flashcards
What is virutal box?
Virtual box is a powerful 64bit virtualization product for enterprise as well as home use
Describe the evolution of Linux OS
The Linux OS was developed by Linux Torvalds in 1991 which his initial aim was to improve the UNIX OS.
He suggested improvements but was rejected by UNIX designers.
Therefore he thought of launching an OS, designed in a way that could be modified by its users.
Nowadays, Linux is the fastest-growing OS.
Used from phones to super computers by almost all major hardware devices.
Describe the structure of Linux Operating system
Kernel
Shell
System Libraries
System Tools
Applications
End User tools
What are system libraries
These are special programs that help in accessing the kernel’s features.
Most well known system library for Linux is Glic (GNU C Library)
Why use linux
Free
Open source
It is secure
Fast performance
It is a flexible operating system: Used from wristwatches to supercomputers
Distrubtions:
Advantages of LINUX
It is an open-source operating system
Can run on any platform. Platform independent.
It provides various distrubutions
Mention some Linux Features
Multiuser capability: mulitple users can access the same system resources
Multitasking: More than one function can be performed simultaneously by dividing the CPU time intelligently.
Portability: support different types of hardware
Security: authentication, authorization and encryption
Graphical User Interface
Open source
Linux Vs Unix
D E U - F U O
Definition: Linux is an open source operating system which is freely available to everyone while It is an operating system which can be only used by its copyrighters.
Examples: Linux has different distrubutors like Ubuntu, Redhat, Fedora while Unix distrubutors are IBM and Sun Soloaris
File System Support: Linux supports more file system than Unix while Unix support file sytem lesser than Linux
Usage: Linux is used on every platform while Unix is used in servers, workstations and PC’s
Operating system: Linux is just the kernel while Unix is a complete package of Operating sytem
Linux vs Windows
A R E - W I S
Access - User can access the source code of kernel in Linux while in windows , users cannot access the source code – not all.
Reliability - Linux is highly reliable and secure while Windows is not as much reliable as Linux
Written in - Linux is written in assembly and C while windows is written in C++ and assembly
Installation - Linux is harder to install because it requires many user inputs while Windows is easier to install and set up on a machine.
Security - Linux is more secure than windows
