Operating systems

Operating systems

1. Windows

2. IOS

3. Mac OS X

4. Linux

5. Android

6. the low-level software that supports a computer's basic functions, such as scheduling tasks and controlling peripherals.

   • User management
     • provides the user with a user interface
       • GUI and Command line
     • provides security through user accounts and passwords
   • Process management
     • manages CPU runs apps and executes and cancels processes
       • allows multiple apps to run at one time
   • utilitys
     • The OS uses applications called utilities which allow the user to manage the computer. There are many different utility programs and they may vary across operating systems. They are often accessed via a special menu or control panel in the OS.

7. File management

   • Creates a file system to organise files and directories
     • Hierarchy system
       • A hierarchical control system is a form of control system in which a set of devices and governing software is arranged in a hierarchical tree. When the links in the tree are implemented by a computer network, then that hierarchical control system is also a form of networked control system.

8. Hardware management

   • Manages input output devices
     • Manages memory system deciding what needs more space
     • communicates between devices and cpu
     • Drivers
       • A device driver is a program that controls a particular type of device that is attached to your computer. There are device drivers for printers, displays, CD-ROM readers, diskette drives, and so on. When you buy an operating system, many device drivers are built into the product.

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