yes... and they invented the mouse as we know it. They wanted to """own the desktop""" so did tons of research there. Then the ceo pulled the plug and abandoned it. PARC invented much of the modern computer systems that we know today. They partnered back then with DEC and INTEL. They invented the the nic card, Ethernet, Ethernet hubs, and many other systems. DEC ended up with DEC net.. the early Ethernet. Three of the engineers afterwards went on the form 3COM to become multi, multi millionaires. Apple grabbed on to the mouse and brought it to popularity. Up till then it was only terminals wired to a mainframe limited to 200 feet otherwise it was a modem. This allowed terminals ALL over the building, and dec's terminal servers could be ran remove so you could now extend mainframe services to other buildings, thus the mainframe was available campus wide... via the early Ethernet, and terminal servers. All developed because Zerox decided to research everything you needed to do... to run an office, terminal, printers, and copiers. A LOT of companies took off from this work. The early muti-pin connector was called a "DIX" connector.. from DEC-INTEL-Xerox. Later the connector was renamed AUI connector via the standardization committees. This connector was used for all connections from computers to Ethernet in the days of vampire clamps, thick coax, later thin coax, later the 3030 plastic "fiber" then on to twisted pair with the early 3com pair-tamer balun products that used twisted pair substitution for thin coax. All of the internet revolution owes its start to PARC, and ARPA, an amazing story of revolutionary development.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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