In the wake of which Intel delivered the first CAN chip, the 82526. Shortly thereafter, Philips Semiconductors introduced the 82C200 CAN controller
On the academic front where larger universities and research labs obtained more computers during the late 1960s, experiments were started to meet the demand of setting up communication links between these computers so that the data could be shared swiftly with least interruptions and without other undesirable delays. Hence the development of Ethernet at XEROX PARC 1973-75, and its subsequent deployment followed by the seminal paper - "Ethernet Distributed Packet Switching For Local Computer Networks" in 1976 by Metcalfe and Boggs.
By early 80s, the flux of Dos based computers in the Industry, where resources such as Disk space and Laser printers were dear, triggered the need to share them along with the data over the channel that could be easily adjusted. In other words these were the early attempts made to provide a solution to meet the demand of sharing resources and smart delivery system and transferring data over affordable physical wiring. Of which only Novel Netware could provide a relatively feasible solution with an operating system that could put 40 computers in a network sharing data and the resources over the same wiring network.
By 1992, when many vendors used their technologies, only compatible to their own equipments, to produce solutions by setting up communication links between two or more devices, no one could convince the other to form an open system that was compatible in general, the need to found a user's group to standardize the different solutions forced Holger Zeltwanger to bring together users and manufacturers to establish the 'CAN in Automation' (CiA) international users and manufacturers association.
Since no standard protocols existed to transfer or receive data at either end of the communication channel provided by various vendors, the foremost job of CiA was to set up the specifications of the CAN Application Layer (CAL). And by 1993, Bosch led a European consortium to design a test project with communication protocols- a step towards setting up a compatible system for internal working of productions cells: the CANopen. The system aimed at providing a framework for programmable systems, devices to suit the systems, interfacing between various components and the application profiles. This facility enabled the industry to exploit it in the printing devices, medicals devices and many more.
By early 1990s efforts were made to develop a communication profile to address the layers that dealt with the applications at communicating ends. 'DeviceNet' and 'Smart Distributed System' (SDS) were developed. These were the higher layers and the focus of these