Hardware Description
The DEC 7000/10000 AXP are six-way symmetric multiprocessing capable systems based on nine nodes that are interconnected by the 128-bit Laser System Bus (LSB). The bus operates at 50 MHz and is pipelined, yielding a maximum bandwidth of 800 MB/s and a usable bandwidth of 640 MB/s. Eight of the nine nodes can be populated by a combination of CPU and memory modules, as long as the number of CPU modules is one to six, and one to seven for memory modules. The inclusion of an I/O module at node nine is mandatory and the slot for the module was physically incompatible with other modules to ensure this.
The modules are printed circuit boards contained within an enclosure that plug into nine slots located on a centerplane, which contains the LSB bus. The front side of centerplane, from left to right, has four slots for nodes zero to three and a Power Filter module, while the rear side, from left to right, has five slots for nodes four to eight. Slot eight is reserved for the I/O module. The modules and centerplane are housed in the LSB card cage. The centerplane is 350 mm wide by 500 mm high. The modules are 410 mm high and 340 mm deep.
Read more about this topic: DEC 7000/10000 AXP
Famous quotes containing the words hardware and/or description:
“A friend of mine spoke of books that are dedicated like this: “To my wife, by whose helpful criticism ...” and so on. He said the dedication should really read: “To my wife. If it had not been for her continual criticism and persistent nagging doubt as to my ability, this book would have appeared in Harper’s instead of The Hardware Age.””
—Brenda Ueland (1891–1985)
“It is possible—indeed possible even according to the old conception of logic—to give in advance a description of all ‘true’ logical propositions. Hence there can never be surprises in logic.”
—Ludwig Wittgenstein (1889–1951)