More commands, concepts and terminology.
commands:
chmod.....changing reading reading and writing authorizations
< img src= imagename.gif.....searching for an image in the folder you're located
[in finder] cmd+shift+g.....go to...
concepts & terminology:
Q.O.S.....Quality Of Service
Duplex internet.....receiving and sending data at the same time [ethernet]
Half-duplex internet.....only sending or only receiving data in a certain moment [wi-fi]
STP.....shielded twisted pair
UTP.... un-shielded twisted pair
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