The VMEbus CPU board was based on the same design as the Multibus CPU but also included 2Mb or 4Mb of memory, the Sun-2 monochrome frame buffer, and 10 Mbit / s Thick Ethernet on board.
32.
This allowed complex systems to be built from commercial off-the-shelf hardware, and also allowed companies to innovate by designing a proprietary Multibus board and then integrating it with other vendors'hardware to create a system.
33.
IRMX III on Intel Multibus hardware is used in the majority core systems on CLSCS the London Underground Solaris on Sparc computers . 16 iRMX local site computers are distributed along the Central line together with 6 central iRMX computers at the control centre.
34.
Sun provided 1 Mb Multibus memory boards and 1 MB and 4 MB VMEbus memory boards but only supported configurations with a maximum of 4 MB RAM . Companies such as Helios Systems also made 4 MB memory boards that would work in Sun systems.
35.
At this time, Imaging Technology Inc . ( ITI ) was developing a line of frame grabber products for Multibus and Q-bus, with a'real time'image processor based on a single point multiplier, adder and lookup table ( LUT ).
36.
The system could communicate image data externally over an 80M per second " Yapbus " or a 2M per second multibus to other hosts, data sources or disks and had a performance measured equivalent to 200 VUPS, or 200 times the speed of a VAX 11 / 780.
37.
Each IP Cache had three ports that connected via ribbon cables to Interactive Processors, IPs, which used Motorola 68012's and, subsequently Motorola 68020's and then Motorola 68030's with 4 MB of local RAM in a Multibus form factor plugged into a 13 slot Multibus chassis.
38.
Each IP Cache had three ports that connected via ribbon cables to Interactive Processors, IPs, which used Motorola 68012's and, subsequently Motorola 68020's and then Motorola 68030's with 4 MB of local RAM in a Multibus form factor plugged into a 13 slot Multibus chassis.
39.
The CPU board included 256 KB of memory which could be replaced or augmented with two additional memory cards for a total of 2 MB . Although the memory cards used the Multibus form factor, they only used the Multibus interface for power; all memory access was via the smaller private " P2 " bus.
40.
The CPU board included 256 KB of memory which could be replaced or augmented with two additional memory cards for a total of 2 MB . Although the memory cards used the Multibus form factor, they only used the Multibus interface for power; all memory access was via the smaller private " P2 " bus.
