operating systems

operating systems

1. microsoft

   • The central processing unit (CPU) of a computer is what manipulates data by performing computations. In practice, almost all computers use a storage hierarchy, which puts fast but expensive and small storage options close to the CPU and slower but larger and cheaper options farther away. Often the fast, volatile technologies (which lose data when powered off) are referred to as "memory", while slower permanent technologies are referred to as "storage", but these terms are often used interchangeably. In the Von Neumann architecture, the CPU consists of two main parts: control unit and arithmetic logic unit(ALU).

2. apple

   • Apple Inc. designs, manufactures and markets mobile communication and media devices, personal computers and portable digital music players and sells a variety of related software, services, peripherals, networking solutions and third-party digital content and applications. The Company's products and services include iPhone, iPad, Mac, iPod, Apple TV, a portfolio of consumer and professional software applications, the iOS and OS X operating systems, iCloud and a variety 
   • Andriod
     • A mobile operating system, also referred to as mobile OS, is an operating system for devices such as a smartphone, tablet, PDA, or other mobile devices; however while some computers are strictly mobile, such as the typical laptop, their operating systems usually used on them, is not considered a mobile one as they where originally designed for bigger stationary desktop computers that historically didn't have or need specific "mobile" features. This distinction is getting blurred in some newer operating systems that are hybrids made for both uses. Mobile operating systems combine features of a personal computer operating system with other features useful for mobile or handheld use; usually including, and most of the following considered essential in modern mobile systems; a touchscreen, cellular, Bluetooth, Wi-Fi, GPS mobile navigation, camera, video camera,speech recognition, voice recorder, music player, near field com
     • windows map
       • Microsoft Windows (or simply Windows) is a metafamily of graphical operating systems developed, marketed, and sold by Microsoft. It consists of several families of operating systems, each of which cater to a certain sector of the computing industry. Active Windows families include Windows NT, Windows Embedded and Windows Phone; these may encompass subfamilies, e.g. Windows Embedded Compact (Windows CE) or Windows Server. Defunct Windows families include Windows 9x and Windows Mobile. Microsoft introduce

3. linuix

   • e confused with Software system. System software (systems software) is computer software designed to operate and control the computer hardware and to provide a platform for runningapplication software.[1] System software can be separated into two different categories, operating systems and utility software. The operating system (prominent examples being z/OS, Microsoft Windows, Mac OS X and Linux), allows the parts of a computer to work together by performing tasks like transferring data between memory and disks or rendering output onto a display device. It also provides a platform to run high-level system software and application software.A kernel is the core part of the operating system that defines an API for applications programs (including some system software) and an interface to device drivers.Device drivers such as computer BIOS and device firm

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