Operating system

Operating system

1. What is a OS ?

   • An Operating System (OS) is the basic software of a computer that provides an interface between the other computer programs, hardware devices and the user.

2. How it works?

   • Operating systems provide a software platform above which other programs, called applications can run. Applications are programmed to operate above a particular operating system, therefore, the choice of operating system largely determines the applications that can use.

3. Examples of OS

   • Macintosh family
     • Windows family
       • Windows 95 ,Windows 98, Windows ME...
     • UNIX family
       • AIX,AMIX, GNU/Linux GNU / Hurd HP-UX
     • Mac OS 7,Mac OS 8, Mac OS 9, Mac OS X

4. Functions Operating System

   • Las functions of basicas the system operation is run these machine resources, hardware and coordinate Files and directories to organize

5. Developments.

   • In the late 1940s, with what could be considered the emergence of the first generation of computers, Operating Systems did not exist. In the early 50s, the operating system makes a discreet appearance. During the 60s and 70s there were noticeable changes, mostly aimed at further increasing the potential of computers and operating systems. ( UNIX and Multics arise.). During the 80's with the integration of large-scale circuits and chips containing thousands of transistors began the rise of computers. -Mac OS-MS DOS.