How a Fluorescent Light Works - Schematic Animation
2:32
How to set an Analog Grow Timer to 18 on 6 off
Lites was a Unix-like operating system, based on 4.4BSD and the Mach microkernel.
Specifically, Lites was a multi-threaded server and emulation library that provided unix functionality to a Mach-based system. At the time of its release Lites provided binary compatibility with 4.4BSD, NetBSD, FreeBSD, 386BSD, UX (4.3BSD) and Linux.