A significant technical influence was the early networking work at Xerox PARC, which produced the PARC Universal Packet protocol suite, much of which existed around that time.

The other was a program at Xerox PARC to explore new networking technologies, which produced the PARC Universal Packet system, due to corporate intellectual property concerns it received little attention outside Xerox for years.

The integration of Ethernet prompted the development of the PARC Universal Packet architecture, much like today's Internet.

XNS was developed at Xerox PARC in the early 1980s, based heavily on the earlier ( and extremely influential ) PARC Universal Packet ( PUP ) protocol suite done there in the late 1970s ; some of the protocols in the XNS suite were lightly modified versions of the ones in the PUP suite.

ARP has been implemented in many combinations of network and overlaying internetwork technologies, such as IPv4, Chaosnet, DECnet and Xerox PARC Universal Packet ( PUP ) using IEEE 802 standards, FDDI, X. 25, Frame Relay and Asynchronous Transfer Mode ( ATM ), IPv4 over IEEE 802. 3 and IEEE 802. 11 being the most common cases.

* Byte Stream Protocol, part of the Xerox PARC Universal Packet network protocol suite

* Rendezvous and Termination Protocol, used in transport connections involving the PARC Universal Packet

* Ethernet, which networks local computers within a building or campus ; and the first Internet, a network that connected the Ethernet to the ARPAnet utilizing PUP ( PARC Universal Protocol ), forerunner to TCP / IP.

The PARC Universal Packet ( PUP or Pup ) was one of the two earliest internetwork protocol suites ; it was created by researchers at Xerox PARC in the mid-1970s.

It was developed from PARC Universal Packet ( PUP ).

# Redirect PARC Universal Packet # Transport layer protocols

# Redirect PARC Universal Packet # Transport layer protocols

# Redirect PARC Universal Packet # Transport layer protocols

He joined PARC as a research fellow in August 2006 and also serves as Chief Scientist for Packet Design in the adjacent Xerox complex.

Chaosnet can be regarded as a contemporary of both the PUP protocols invented by PARC, and the Internet Protocol, and was recognized as one of the other network types ( other than " IN ") in the Domain Name System.

The origins of the PUP suite lie in two developments ; in the same events in the early 1970s as the very earliest stage of the development of TCP / IP ( see History of the Internet ), and the creation of the Ethernet local area network at PARC.

However, the development of PUP split off because Xerox PARC wished to move ahead with implementation, for in-house use.

EFTP ( various expansions of this have been given, including Easy File Transfer Protocol, Ether File Transfer Protocol, and Experimental File Transfer Protocol ) was a very simple file transfer protocol developed as part of the PUP protocol suite at Xerox PARC in the late 1970s.

The original Macintosh system software was partially based on the Lisa OS, previously released by Apple for the Lisa computer in 1983 and, as part of an agreement allowing Xerox to buy shares in Apple at a favorable rate, it also used concepts from the Xerox PARC Xerox Alto, which Steve Jobs and several other Macintosh team members had previewed.

Mark Weiser's original material dating from his tenure at Xerox PARC:

The original Hungarian notation, which would now be called Apps Hungarian, was invented by Charles Simonyi, a programmer who worked at Xerox PARC circa 1972 – 1981, and who later became Chief Architect at Microsoft.

He recruited his original employees from Apple, Atari, Xerox PARC, and VisiCorp, and got Steve Wozniak to agree to sit on the board of directors.

While working at PARC, English developed the ball mouse, in which a ball replaced the original set of wheels.

Xerox had just bought Scientific Data Systems in 1969, and wanted PARC to use an SDS machine.

" It was designed and created in part for educational use, more so for constructionist learning, at the Learning Research Group ( LRG ) of Xerox PARC by Alan Kay, Dan Ingalls, Adele Goldberg, Ted Kaehler, Scott Wallace, and others during the 1970s.

Xerox remains the company's largest customer ( 50 %), but PARC has numerous other corporate and venture clients in different fields of use than Xerox including: VMware, Fujitsu, Dai Nippon Printing Co., Ltd. ( DNP ), Samsung, NEC, SolFocus, Powerset, Thin Film Electronics ASA and many more.

Although the mechanism was already in widespread use in early line and character editors, Lawrence G. Tesler ( Larry Tesler ) popularized " cut and paste " in the context of computer-based text-editing while working at Xerox Corporation Palo Alto Research Center ( PARC ) in 1974 – 1975.

In the late 1990s, Ed H. Chi worked with Pirolli, Card and others at PARC further developed information scent ideas and algorithm to actually use these concepts in real interactive systems, including the modeling of web user browsing behavior, the inference of information needs from web visit log files, and the use of information scent concepts in reading and browsing interfaces.

Tesler left Apple in 1997 to co-found Stagecast Software, which allowed him to apply his enthusiasm for kids ' programming and use of computers, an enthusiasm he acquired mainly at Xerox PARC, where he worked in Alan Kay's Learning Research Group.

In the 1970s the funding Engelbart's group received from the Advance Research Project Agency ( ARPA ) was cut and many key members of Engelbart's team went to work for Xerox PARC where they continued to experiment with the mouse and keyset.

Ethernet was developed at Xerox PARC between 1973 and 1974.

In 1976, after the system was deployed at PARC, Metcalfe and Boggs published a seminal paper.

The concept of hyperlinks was further refined and extended to graphics by researchers at Xerox PARC, specifically Alan Kay, who went beyond text-based hyperlinks and used a GUI as the primary interface for the Xerox Alto computer.

Following PARC the first GUI-centric computer operating model was the Xerox 8010 Star Information System in 1981 ,< ref >

Though quiet by nature, he took the uncharacteristic step of urging Xerox executives to keep their California research center, Xerox PARC, afloat when the parent company was suspicious that its research center would amount to little.

Ethernet was developed at Xerox PARC in 1973 – 1975, and filed as.

In 1976, after the system was deployed at PARC, Metcalfe and Boggs published a seminal paper, " Ethernet: Distributed Packet-Switching For Local Computer Networks.

LambdaMOO was founded in late 1990 or early 1991 by Pavel Curtis at Xerox PARC .< ref name =" internetculture "> Now hosted in the state of Washington, it is operated and administered entirely on a volunteer basis.

Xerox PARC developed Cedar, which was based on Mesa, with a number of additions including garbage collection, better string support, called Ropes, and a native compiler for Sun SPARC workstations.

Initially its spread was confined to PARC and a few universities to which Xerox had donated some Altos.

Xerox PARC employees argued that Mesa was a proprietary advantage that made Xerox software engineers more productive than engineers at other companies.

Whereas MVC comes from the previous decade ( by work at Xerox PARC in the late 1970s and early 1980s ) and is based on observations of applications that ran on a single graphical workstation ; MVC was applied to distributed applications later in its history ( see Model 2 ).

Smalltalk was the product of research led by Alan Kay at Xerox Palo Alto Research Center ( PARC ); Alan Kay designed most of the early Smalltalk versions, which Dan Ingalls implemented.

Smalltalk-80 was the first language variant made available outside of PARC, first as Smalltalk-80 Version 1, given to a small number of firms ( Hewlett-Packard, Apple Computer, Tektronix, and DEC ) and universities ( UC Berkeley ) for " peer review " and implementation on their platforms.

Alan Kay has commented that despite the attention given to objects, messaging is the most important concept in Smalltalk: " The big idea is ' messaging ' -- that is what the kernel of Smalltalk / Squeak is all about ( and it's something that was never quite completed in our Xerox PARC phase ).

On June 24, 1993, the band was playing a gig at Xerox PARC while elsewhere in the building, scientists were discussing new technology ( the Mbone ) for broadcasting on the Internet using multicasting.

One of the earliest ubiquitous systems was artist Natalie Jeremijenko's " Live Wire ", also known as " Dangling String ", installed at Xerox PARC during Mark Weiser's time there.

Pake selected Palo Alto, California, as the site of what was to become known as PARC.