Evolution of Operating System

Evolution of Operating System The evolution of various types of operating systems can be briefly described as follows: Serial Processing: – Since 1950, the operating system started to be in use. Before 1950, there were no operating systems, and programmers had...

File in Operating System

What is File in Operating System?  A file is defined as a collection of the interrelated information that is stored in the secondary memory or the non-volatile memory such as optical disk magnetic tapes and magnetic disks. A file can also be defined as a sequence...

Unix Operating System

Unix Operating System Unix Operating System is a multiuser, portable, time-sharing, and multitasking operating system that was developed in 1969. Unix operating system was developed by a group of AT & T Laboratory employees Dennis Ritchie, Joe Ossanna, Douglas...

Linux Operating System

Linux Operating System Linux is the most popular version of the Unix operating system. Linux operating system is an open-source operating system, which is mainly used for Mainframes, Mobile devices, Embedded devices, and Servers. Linux is an open-source system because...

Components of Operating System

Components of Operating System An operating system is a complex and vast system. We can only create the operating system by dividing it into small parts. Each part must be a well-defined portion of a system that appropriately describes the functions, inputs, and...

Semaphore in Operating System

What is Semaphore in Operating System Semaphore is defined as an integer variable which is used to solve the problem of the critical section in process synchronization. In semaphore, we use two types of atomic operations, and that operations are wait and signal. The...

Needs of Operating System

Needs of Operating System There are various needs of operating system: Managing Input-Output UnitThe Operating system as a platform for application programsMultitaskingConsistent user interface Managing Input-Output Unit: – With the help of the operating system,...

Ubuntu Operating System

Ubuntu Operating System Ubuntu is an open-source and a Linux based operating system. Ubuntu is developed for the Network Servers, Computers, and Smartphones. The Ubuntu operating system was developed by Canonical Ltd, which is a UK based company. The principles which...

Android Operating System

What is Android Operating System? Android is a Linux-based and open-source operating system mainly established for mobile devices like tablet computers and Smartphones. The Android operating system was established by the Open Handset Alliance, led by Google and other...

DOS Operating System

What is DOS Operating System? An operating system that runs from a hard disk drive is known as the DOS (Disk Operating System).In other words, DOS (Disk Operating System) is defined as an operating system that exists on the storage of disk and also uses various types...

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