26 April 2001
Terminology
GPL
general public license, meaning anyone can use code free of charge and modify it as long as modifications are submitted back to the community
HMI
human-machine interface
OS
operating system
PC
personal computer
PLC
programmable logic controller
SoC
system on a chip
teraflops
1 trillion floating-point operations per second, a benchmark measurement for rating the speed of microprocessors
Unix
a popular, multiuser, multitasking operating system developed at Bell Labs in the early 1970s
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