Download Microsoft Operating Systems

Microsoft Operating Systems
An operating system (OS) is a set of programs that manage computer hardware resources and
provide common services for application software. The operating system is a vital component of
the system software in a computer system.
Application programs require an operating system which are usually separate programs, but can
be combined in simple systems.
For hardware functions such as input and output and memory allocation, the operating system
acts as an intermediary between application programs and the computer hardware. Operating
systems are found on almost any device that contains a computer—from cellular phones and
video game consoles to supercomputers and web servers.
Operating Systems join all devices and software together
No O.S. No Functionality
Operating System Types / Categories
PC – Personal Computers
MAC – Macintosh / Apple Computers
DOS (Command Line)
Mac OS System (1) Single Task
WIN 3.1(GUI)
System Software 2
WIN 95
System Software 3
WIN 98
System Software 4
WIN 98 SE
System Software 5 – Multi Task (Multi Finder)
WIN ME
System Software 6
WIN NT
System Software 7
WIN 2000
Mac OS 7.6
WIN XP
Mac OS 8
WIN VISTA
MAC OS 9
WIN 7
MAC OS X (CHEETAH – MOUNTAIN
LION)
BETA
P.C. O.S. History Resource Link
http://en.wikipedia.org/wiki/History_of_Microsoft_Windows
Mac O.S. History Resource Link
http://en.wikipedia.org/wiki/History_of_Mac_OS
http://en.wikipedia.org/wiki/OS_X