A electronic circuit to works as a devices which can be attached  slot. If we want to increase the hardware facility into system then  we ass any card. Ex. TV Tuner card .In computing, the growth card, growth board, adapter card or accent card could be a computer circuit board that may be inserted into AN electrical instrumentation, or slot, on a laptop motherboard, backplane or riser card to feature practicality to an ADPS via the growth bus.The purpose of adding AN growth card or board to a computer’s motherboard is to feature or expand some type of practicality to the pc that it failed to have before. growth cards square measure the way to upgrade a laptop.

       ü  F.M Card

ISA:  Industrial Standard Arcticture

PCI:   Peripheral Component Interface.

AGP:    Accelerator Graphics Port.

CNR:  Communication Network Raiser.

AMR:   Audio Video Raiser

AGP – Video card.

AMR – Modem, Sound card.

CNR – Modem, Network card, Sound card.

EISA – SCSI, Network card, Video card.

ISA – Network card, Sound card, Video card.

PCI – Network card, SCSI, Sound card, Video card.

PCI Express – Video card, Modem, Sound Card, Network Card.

VESA – Video card.

Slot                                  Speed(Data Transfer)                                          

ISA                                             8-16 Bit                                    Slow

PCI                                            32Bit                                          Fast

AGP                                           32-64 Bit                                  Faster

CNR                                            32 Bit                                       Fast

AMR                                            32Bit                                       Fast

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Modem