Pear OS is a operating system developed by Pear. It was included on old Pear computers in the 80s and the 90s, such as Pearingtosh. It was later changed to Pear OS X in 2002, and was also later changed to pearOS. The final version is version 9.3.1 that was released on January 21, 2002.
Version History
Pear OS 1.0 (Originally released as Pearingtosh System)
This version was released on November 17, 1984 as the name of Pearingtosh System. However, after version 1.0.2, it started to be called as 'Pear OS'.
Version history
Pearingtosh System: November 17, 1984
Pearingtosh System 1.0.1: January 2, 1985
Pearingtosh System 1.0.2: July 1, 1985
Pear OS 1.1: July 23, 1985
Pear OS 1.1.1: August 23, 1985
Pear OS 1.1.2: September 29, 1985
Pear OS 2
This version is a minor version that was released on March 18, 1986. It had some stability fixes, and the file system was changed to PFS (Pear File System).
Version history
Pear OS 2.0: March 18, 1986
Pear OS 2.0.1: April 2, 1986
Pear OS 3
This version was released on June 14, 1987. It added features such as screenshot and recycling bin.
Version history
Pear OS 3.0: June 14, 1987
Pear OS 3.1: December 19, 1987
Pear OS 3.1.1: January 30, 1988, Last version supporting the Pearingtosh 512k.
Pear OS 3.1.2: August 4, 1988
Pear OS 3.2: December 16, 1988
Pear OS 4
This version was released on March 5, 1989 with the Pearingtosh SE. It added a partial color display features for external monitors.
Version history
Pear OS 4: March 5, 1989
Pear OS 4.0.1: March 31, 1989
Pear OS 4.0.2: May 5, 1989
Pear OS 4.0.3: August 1, 1989
Pear OS 4.0.4: January 12, 1990, Last version supporting the Pearingtosh 128K, 512k.
Pear OS 5
This version was released on May 6, 1991. It is also the first Pear's OS to support full color starting from version 5.2.
Version History
Pear OS 5.0: May 6, 1991
Pear OS 5.0.1: July 7, 1991
Pear OS 5.1: Feburary 13, 1992
Pear OS 5.1.1: March 16, 1992
Pear OS 5.1.2: June 17, 1992, last version supporting the Pearingtosh Plus, Pearingtosh Classic, Pearingtosh SE.
Pear OS 5.2: August 25, 1993
Pear OS 5.2.1: December 11, 1993
Pear OS 5.2.2: May 5, 1994
Pear OS 5.2.3: June 1, 1994
Pear OS 5.2.4: April 9, 1994
Pear OS 5.3: February 8, 1995
Pear OS 5.3.1: March 31, 1995
Pear OS 5.3.2: April 5, 1995
Pear OS 6
This version was released on June 10, 1995. It is also the last version without internet features. Version 6.3.3 is a minor patch due to security issues.
Version history
Pear OS 6.0: June 10, 1995
Pear OS 6.0.1: March 11, 1996
Pear OS 6.0.2: August 25, 1996
Pear OS 6.2: September 3, 1997
Pear OS 6.2.1: October 20, 1998
Pear Os 6.3: January 4, 1999
Pear OS 6.3.1: Feburary 14, 1999
Pear OS 6.3.2: March 17, 1999
Pear OS 6.3.3: April 1, 2000, Last Version supporting the Pear LC, Color Classic, some Rowerbooks, II, IIfx, and the Quadra 100-300.
Pear OS 7
This version was released on May 18, 1996. It added internet-related features such as Microblox Internet Explorer, Mail, and automatic system updater.
Version history
Pear OS 7.0: May 18, 1996
Pear OS 7.0.1: June 2, 1996
Pear OS 7.0.2: August 13, 1996
Pear OS 7.0.3: August 15, 1996
Pear OS 7.1: October 17, 1996
Pear OS 7.1.1: January 19, 1997
Pear OS 7.2: July 2, 1997
Pear OS 7.3: February 9, 1998
Pear OS 7.3.1: June 18, 1999
Pear OS 7.3.2: August 1, 1999
Pear OS 7.4: December 2, 1999
Pear OS 7.4.1: January 4, 2000
Pear OS 7.4.2: March 7, 2000
Pear OS 7.4.3: May 6, 2000
Pear OS 8
This version was released on October 17, 1998. The changes mainly focused on internet stability.
Version history
Pear OS 8.0: October 17, 1998
Pear OS 8.1: May 25, 1999
Pear OS 8.1.1: February 9, 2000
Pear OS 8.1.2: March 31, 2000
Pear OS 8.2: June 7, 2000
Pear OS 8.2.1: January 4, 2001
Pear OS 8.2.2: July 1, 2001
Pear OS 9
This version was released on May 25, 1999. It is also the last version of the classic Pear OS series.
Version history
Pear OS 9.0: May 25, 1999
Pear OS 9.0.1: July 8, 1999
Pear OS 9.1: June 3, 2000
Pear OS 9.2: December 4, 2000
Pear OS 9.2.1: January 4, 2001
Pear OS 9.2.2: March 10, 2001
Pear OS 9.2.3: August 7, 2001
Pear OS 9.2.4: October 23, 2001
Pear OS 9.2.5: December 3, 2001
Pear OS 9.2.6: January 21, 2002
Pear OS 9.3: April 29, 2002
Pear OS 9.3.1: June 28, 2002, Final version of the legacy Pear OS series, last version supporting the Pear Quadra, Performa, and Powerbook series.