OPERATING SYSTEMS AND SYSTEMS SOFTWARE

SYSTEMS SOFTWARE Systems software consists of the programs that control the operations of the computer and its devices. Starting up the computer Opening, executing and running applications Storing, retrieving and copying files Formatting disks Reducing file sizes Backing up the contents of the hard drive

There are 2 types of systems software: Operating systems Utilitys

Operating Systems An operating system (OS) is a set of programs containing instructions that work together to coordinate all the activities among computer hardware resources 4

Start and shut down a computer Provide a user interface Manage programs Manage memory Coordinate tasks Configure devices Establish an Internet connection Monitor performance Provide utilities Automatically update Control a network Administer security

THE BOOT PROCESS The process of starting or restarting a computer is called booting 6 Cold boot Turning on a computer that has been powered off completely Warm boot Using the operating system to restart a computer

Operating System Functions How an operating system handles programs directly affects your productivity 7 Single user and multiuser Single tasking and multitasking Foreground and background Multiprocessing

Operating System Functions The operating system determines the order in which tasks are processed 8

Stand-Alone Operating Systems Windows 7 is Microsoft’s fastest, most efficient operating system to date and is available in multiple editions: 9 Windows 7 Starter Windows 7 Home Premium Windows 7 Ultimate Windows 7 Professional

Server Operating Systems Windows Server 2008 UNIXLinux SolarisNetWare 10

Embedded Operating Systems An embedded operating system resides on a ROM chip on a mobile device or consumer electronic device 11 Windows Embedded CE Windows Mobile Palm OSiPhone OS BlackBerry Google Android Embedded Linux Symbian OS

Utility programs Utility software is a kind of system software designed to help analyze, configure, optimize and maintain the computer. A single piece of utility software is usually called a utility or tool.

POPULAR OPERATING SYSTEMS