TitleHitachi High Density Module Board
PublisherHitachi Data Systems
|Other number||P3222||Verso ink|
Dimensionsoverall: 5 in x 7 in
DescriptionColor image of a Hitachi High Density Module Board.
Verso paper label: " Pictured is a High Density module (HDM) which is part of Hitachi Data Systems' HDS EX(tm) Series of mainframe computer systems. Each HDM is a four inch by four inch package containing up to 41 logic or memory components. Each HDM can contain up to 492,000 gates of logic, or more than 21 million bits of data storage. Because of the close proximity of these high-speed compontnets water is used to cool the components to ensure high levels of reliablilty for the mainframe system."