Am 01.07.2012 07:40, schrieb Les Mikesell: [distinction between /bin and /usr/bin]
The concept really comes from the original unix, which back in the day, often had really tiny boot disks and might mount everything else over the network or use different drive types to hold the larger /usr space.
The separation predates Unix networking. IIRC /usr/bin was already there on Unix Version 7 on the PDP-11, before Ethernet was even invented.