I.t.application in business

An Operating System (OS) is an interface between a computer user and computer hardware. An operating system is a software which performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers. Some popular Operating Systems include Linux Operating System, Windows Operating System , VMS, OS/400, AIX, z/OS, etc. Definition An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs. Following are some of important functions of an operating System. Memory Management Processor Management Device Management File Management Security Control over system performance Job accounting Error detecting aids Coordination between other software and users Memory Management Memory management refers to management of Primary Memory or Main Memory. Main memory is a large array of words or bytes ...

Windows Operating System History & Versions The Windows operating system (Windows OS) refers to a family of operating systems developed by Microsoft Corporation. We look at the history of Windows OS from 1985 to present day. The Windows operating system ( Windows OS ) for desktop PCs is more formally called Microsoft Windows and is actually  a family  of operating systems for personal computers. Windows has traditionally dominated the personal computer world, running, by some estimates, more than 75 percent of all personal computers. Beginning in the early 2000s, Windows dominance has lessened with the growth of the Linux Teacherac operating systems. Windows provides a graphical user interface (GUI), virtual memory management, multitasking, and support for many peripheral devices. In addition to Windows operating systems for personal computers, Microsoft also offers operating systems for servers and mobile devices...

What is Linux ?   Linux® is an   open source   operating system (OS). An   operating system   is the software that directly manages a system’s hardware and resources, like CPU, memory, and   storage . The OS sits between applications and hardware and makes the connections between all of your software and the physical resources that do the work. Think about an OS like a car engine. An engine can run on its own, but it becomes a functional car when it’s connected with a transmission, axles, and wheels. Without the engine running properly, the rest of the car won’t work. How does Linux work? Linux was designed to be similar to UNIX, but has evolved to run on a wide variety of hardware from phones to supercomputers. Every Linux-based OS involves the Linux kernel—which manages hardware resources—and a set of software packages that make up the rest of the operating system. The OS includes some common core components, like the GNU t...

Android App Development Fundamentals for Beginners Android  is an  operating system  which is build basically for Mobile phones. It is based on the Linux Kernel and other open sources softwares and is developed by  Google . It is used for touchscreen mobile devices such as smartphones and tablets. But nowadays these are used in Android Auto cars, TV, watches, camera,etc. It has been one of the best-selling OS for smartphones. Android OS was developed by  Android Inc . which Google bought in 2005. Various applications (apps) like games, music player, camera, etc. are build for these smartphones for running on Android.  Google Play store  features more than 3.3 million apps. The app is developed on an application known as  Android Studio.  These executable apps are installed through a bundle or package called  APK(Android Package Kit) . Android Fundamentals Android Programming Languages :  In Android, basically programming...