From Progressbar95 Wiki

Home Screen of B OS
Bonus Points1400
Level Limit80
Version Released0.9710 Released on January 31, 2023
System Version1.8b
System Release1996
System Requirements
CPUPBPower 9p 200Mhz
Hard Drive1 GB
Levels for Professional70

B OS is a special system added in the update 0.98. It is based on BeOS. The system has two versions:

  1. PC kernel, accessed from the PC menu
  2. BC kernel, accessed from the Progresh menu

There are no major differences between the two versions, though progress is separate between each version. To unlock B OS, you must collect 3 million points in BarOS after unlocking BAR/X.