L 45 A & l 45 E
Wednesday, 24 April 2013, ϟ 0 shout(s)

DOS: 2
MAC OS: 3
LINUX: 1

DOS
  1. CLOSED SOURCE SOFTWARE
  2. IT USED A COMMAND LINE INTERFACE WHEN MICROSOFT FIRST DEVELOPED IT.
MAC OS
  1. IT WAS THE FIRST COMMERCIALLY SUCCESSFUL GRAPHICAL USER INTERFACE.
  2. CLOSED SOURCE SOFTWARE
LINUX

  1. IT IS AN OPEN SOURCE SOFTWARE
  2. IT IS POPULAR, FREE, UNIX-LIKE GRAPHICAL USER INTERFACE OPERATING SYSTEM.
DOS                                                      :    PC PLATFORM.
MICROSOFT WINDOWS XP            :    PC PLATFORM
UNIX                                                      :    CROSS-PLATFORM
MICROSOFT WINDOWS VISTA      :    PC PLATFORM
MAC OS X                                           :    APPLE PLATFORM
LINUX                                                    :    CROSS-PLATFORM
MAC OS                                               :    APPLE PLATFORM

  1. Operating system
  2. PC Platform
  3. PC Platform
  4. Apple Platform
  5. DOS

  6. Primary program
  7. Disk Operating System
  8. MAC OS X
  9. Cross-platform





new past