Dell Technology Guide
Page 345
... the controller is associated with a specific device (such as a serial connector, parallel connector, or expansion slot) and allows the processor to connect IEEE 1394-compatible devices, such as built-in kilohertz (kHz), megahertz (MHz), gigahertz (GHz), or terahertz (THz). ISP - I /O - The organization that equals 1 cycle per second. An interface for mass storage devices...
... the controller is associated with a specific device (such as a serial connector, parallel connector, or expansion slot) and allows the processor to connect IEEE 1394-compatible devices, such as built-in kilohertz (kHz), megahertz (MHz), gigahertz (GHz), or terahertz (THz). ISP - I /O - The organization that equals 1 cycle per second. An interface for mass storage devices...