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A few years later, MacIP was separated from the SEAGATE code and became the de facto method for IP packets to be routed over LocalTalk networks. In 1984, Bill Croft at Stanford University pioneered the development of IP packets encapsulated in DDP as part of the SEAGATE (Stanford Ethernet-AppleTalk Gateway) project. With the purchase of NeXT and subsequent development of Mac OS X, AppleTalk was strictly a legacy system. Support was added to Mac OS X in order to provide support for a large number of existing AppleTalk devices, notably laser printers and file shares, but alternate connection solutions common in this era, notably USB for printers, limited their demand. The appearance of a Macintosh with a direct Ethernet connection also magnified the Ethernet and LocalTalk compatibility problem: Networks with new and old Macs needed some way to communicate with each other. Introduced for the newly released Macintosh II computer, one of Apple's first two Macintoshes with expansion slots (the Macintosh SE had one slot of a different type), the operating system included a new Network control panel that allowed the user to select which physical connection to use for networking (from "Built-in" or "EtherTalk"). By 1986, Columbia University released the first version of the Columbia AppleTalk Package (CAP) that allowed higher integration of Unix, TCP/IP, and AppleTalk environments.

In 1988, Apple released MacTCP, a system that allowed the Mac to support TCP/IP on machines with suitable Ethernet hardware. These included updates to EtherTalk and TokenTalk, AppleTalk software and LocalTalk hardware for the IBM PC, EtherTalk for Apple's A/UX operating system allowing it to use LaserWriters and other network resources, and the Mac X.25 and MacX products. AppleTalk was at that time the most used networking system in the world, with over three times the installations of any other vendor. As Apple expanded into more commercial and education markets, they needed to integrate AppleTalk into existing network installations. This led to the Open Transport efforts, which re-implemented both MacTCP and AppleTalk on an entirely new code base adapted from the Unix standard STREAMS. AppleShare was effectively the replacement for the failed Macintosh Office efforts, which had been based on a dedicated file server device. 1987 also marked the introduction of the AppleShare product, a dedicated file server that ran on any Mac with 512 kB of RAM or more. For some time in the early 1990s, the Mac was a primary client on the rapidly expanding Internet. This could be as simple as a network of Ethernet Mac II's trying to talk to a LaserWriter that only connected to LocalTalk.

AppleTalk included a protocol structure for interconnecting AppleTalk subnets and so as a solution, EtherTalk was initially created to use the Ethernet as a backbone between LocalTalk subnets. By 1987, Ethernet was clearly winning the standards battle over Token Ring, and in the middle of that year, Apple introduced EtherTalk 1.0, an implementation of the AppleTalk protocol over the Ethernet physical layer. Many of these organizations had already invested in a very expensive Ethernet infrastructure and there was no direct way to connect a Macintosh to Ethernet. I was very impressed with that Warren Buffett metaphor that asset-backed mortgage lending was the atomic bomb, and that there are hydrogen bombs out there. Signal control cables are often used to transmit signals, audio, and images. Sava’s engineers will make sure your control cables meet the exact application requirements. Our cables, become unprofitable, will be sold to our American and German rivals, and British enterprise will vanish from that ocean, which now, in the phrase of Gibbon, is the scene of the world's debate.

The British Government, in combination with the Governments of New Zealand, Australia, and Canada, initiated, in December, 1902, a State-owned cable running from Australia to Canada, viâ Brisbane, Norfolk Island (whence a branch ran to New Zealand), Fiji, Fanning Island, and Vancouver. Dayna also offered a PC expansion card that ran up to 1.7 Mbit/s when talking to other Dayna PC cards. The best-known such system was Centram's FlashTalk, which ran at 768 kbit/s, and was intended to be used with their TOPS networking system. The company offers comprehensive system solutions to its clients, addressing their needs at every stage of the supply chain. However, the loss of AppleTalk did not reduce the desire for networking solutions that combined its ease of use with IP routing. A thriving third-party market for AppleTalk devices developed over the next few years. A number of companies responded, including Hayes and a few newly formed companies like Kinetics. At introduction, Ethernet interface cards were available from 3Com and Kinetics that plugged into a Nubus slot in the machine. Ethernet had become almost universal by 1990, and it was time to build Ethernet into Macs direct from the factory. Over time, many third-party companies would introduce compatible Ethernet and Token Ring cards that used these same drivers.

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