- Дата: 11-09-2022, 23:22
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Apple used a proprietary system with seven 50-pin-slots for Apple II peripheral cards, then later used both variations on Processor Direct Slot and NuBus for its Macintosh series until 1995, when they switched to a PCI Bus. This form are also called riser cards, or risers. For example, many graphics cards on the market as of 2010 are dual slot graphics cards, using the second slot as a place to put an active heat sink with a fan. Some mobile phones support use of two SIM cards, described as dual SIM operation. In the PC-compatible personal computer, these connectors were located in the support bracket at the back of the cabinet. Industrial backplane systems had connectors mounted on the top edge of the card, opposite to the backplane pins. These usually fit on top of and parallel to the board, separated by spacers or standoffs, and are sometimes called mezzanine cards due to being stacked like the mezzanine of a theatre. However, the expansion modules attached to these interfaces, though functionally the same as expansion cards, are not technically expansion cards, due to their physical form. Some cards are "low-profile" cards, meaning that they are shorter than standard cards and will fit in a lower height computer chassis.