FANDOM


Macos42-1-1
File:System 4.0-0

System 4 is the fourth major upgrade of the Macintosh system software. System 4 was first released in January 1987.

Features

System 4.0:

  • Was a minor update from System 3, but did have some changes and new features.
  • Introduced AppleShare, a file server, as part of the OS.
  • Updated the LaserWriter Driver to 3.3.


System 4.1:

  • Made for the release of the Macintosh II and SE.
  • Updated the LaserWriter Driver to 4.0.


System 4.2:

  • Improved the "About the Macintosh" dialog box; now contained RAM usage as seen through Mac OS 9.
  • The Color menu was displayed on color capable Macs.
  • Backgrounder, DA Handler, Early Access, and Print Moniter were added.
  • Cooperative multitasking via MultiFinder was added.
  • Updated the LaserWriter Driver to 5.0.


System 4.3:

  • Updated the Apple HD SC Setup partitioning software.
  • Updated the LaserWriter Driver to 5.1.

Versions of System 4


System 4

System 4.0 | System 4.1 | System 4.2 | System 4.3

← System 3 | System 4 | System 5


Macintosh system software
Macintosh System: System 1 | System 2 | System 3 | System 4 | System 5 | System 6 | System 7
Mac OS: Mac OS 8 | Mac OS 9 | Mac OS X

Ad blocker interference detected!


Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.