Physical construction edit One edge of the expansion card holds the contacts (the edge connector or pin header ) that fit into the slot.
Proprietary local buses (q.v.In 2004, implements the logical PCI protocol over a serial communication interface.Some of these standadards were VMEbus, STD Bus, and others.ExpressCard.0 adds SuperSpeed USB as another type of interface the card can use.This used a second connector for extending the address and data bus over the XT, but casino ruleta en vivo pelicula was backward compatible; 8-bit cards were still usable in the AT 16-bit slots.
Examples of daughterboard-style expansion cards include: Enhanced Graphics Adapter piggyback board, adds memory beyond 64 KB, up to 256 KB 10 Expanded memory piggyback board, adds additional memory to some EMS and eems boards 11 ADD daughterboard raid daughterboard Network interface controller (NIC) daughterboard CPU.
This may have been electrically the same as or similar to the XT bus; it most certainly had some similarities since both essentially exposed the 8088 CPU's address and data buses, with some buffering and latching, the addition of interrupts and DMA provided by Intel.( Apple II, Macintosh Tandy, Commodore, Amiga, and Atari, offered their own expansion buses.The group of expansion cards that are used for external connectivity, such as network, SAN or modem cards, are commonly referred to as input/output cards (or I/O cards).Minicomputers, starting with the PDP-8, were made of multiple cards, all powered by and communicating through a passive backplane.PC/104(-Plus) or Mini PCI are often added for expansion on small form factor boards such as Mini-ITX.In the PC-compatible personal computer, these were located in the support bracket at the back of the cabinet.Some cards are "low-profile" cards, meaning that they are shorter than standard cards and will fit in a lower height computer chassis.Operating temp.: 20C to 75C.Intel launched their PCI bus chipsets along with the P5 -based Pentium CPUs in 1993.100 Authoritative Dictionary of ieee Standards Terms, Seventh Edition, ieee, 2000, isbn, page 284 Jens Kröger.An expansion card can be installed to offer multiple RS232 ports or multiple and higher bandwidth Ethernet ports.
In the case of expansion of on-board capability, a motherboard may provide a single serial RS232 port or Ethernet port.
1, contents, history edit, main article: Bus (computing) History, even vacuum-tube based computers had modular construction, but individual functions for peripheral devices filled a cabinet, not just a printed circuit board.
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