3.4 Linux operating system

-

 Linux: -

  • Linux is a free and open-source operating system based on Unix.
  • It was created by Linus Torvalds in 1991.
  • Linux is used in computers, servers, mobile devices, and embedded systems.
  • It controls the hardware and software resources of a computer.
  • The Linux kernel is the core part that interacts with the hardware.
  • Linux provides a command-line interface (CLI) and a graphical user interface (GUI).
  • It supports multitasking – running multiple programs at the same time.
  • It is a multiuser system, meaning multiple users can use it simultaneously.
  • Linux is highly secure and stable, which is why it is used in servers.
  • It is portable, meaning it can run on different types of hardware.
  • The source code of Linux is open, so anyone can modify or improve it.
  • There are many distributions of Linux such as Ubuntu, Fedora, Red Hat, Debian, etc.
  • Linux uses a file system hierarchy, starting from the root directory (/).
  • It supports programming languages like C, C++, Python, Java, etc.
  • Linux is commonly used for software development, networking, cybersecurity, and system administration.

 

Common Uses

  • It is the dominant operating system for web servers and cloud infrastructure.
  • The Android mobile OS is built on the Linux kernel.
  • It powers most of the world's supercomputers.
  • It is widely used by developers and in scientific research.
  • It is also a capable desktop OS for everyday computing, browsing, and office work.

 

Limitation of Linux

  • There's no standard edition of Linux.
  • Linux has patchier support for drivers which may result in misfunctioning of the entire system.
  • Linux is, for new users at least, not as easy to use as Windows.
  • Many of the programs we are using for Windows will only run on Linux only with the help of a complicated emulator. For example. Microsoft Office.
  • Linux is best suitable for a corporate user. It's much harder to introduce in a home setting.

 

Popular posts from this blog

operators in c programming

-
Image
v Operators: - An operator is a symbol that tells or intimates to the compiler to perform specific calculations or manipulations on one or more operands. Operators are essential for performing computations and making decisions in programs.   a + b is an operation a & b are operands + is an operator   Based on number of operands involved: 1.      Unary operators: - unary operators can be applied on only one operator. Example: -   ++ , -- , - (unary minus) , sizeof , ~ (compliment) , ! (not).   2.      Binary operators: - binary operators can be applied on two operands. Example: -   + , -,   * , / , etc.   3.    Ternary operators: - Ternary operator can be applied on three operands. Example: -   ?: (ternary conditional operator).   C supports several operators, can be classified into following...
Read more

Variables in c

-
Image
  Variables: - A variable is a data name or an identifier which stores a value that can be changed during the program execution.  Every variable might belong to any of the data types, like int, float, char, etc.  The name of a variable can be composed of letters, digits, and the underscore character. It must begin with either a letter or an underscore.  Variables are case-sensitive because uppercase and lowercase letters are distinct. C programming language also allows defining various other types of variables, like numeric array, character array, pointer, Structure, Union, Enumeration and etc.               Example: - sum, height, _value Declaring a variable in C: - Variable declaration means telling the compiler about the name and type of a variable before using it in the program. Variable declaration is the process of reserving a memory location and defining the type of data that will be stored in that locatio...
Read more

2.4 Arrays in c programming

-
Image
  Arrays: - An array is a collection of elements of the same data type stored in contiguous memory locations. It is a derived data type and a homogenous data structure. It is a variable which can store multiple values of the same type under a single variable name, making it easier to manage and manipulate related data. The size of an array is fixed. To access the elements of an array, we use indexes or subscripts accordingly. array index or subscript is used to identify array elements address. Array index or subscript starts with 0 to n-1.   Declaration of an array: - The declaration of an array means telling the compiler to create an array variable and reserving memory for a fixed number of elements of the same data type. Initialization of an array: - Initializing an array means assigning initial values to its elements. Types of arrays: - Arrays are classified based on the number of dimensions they have:             ...
Read more