Course 2: SCSI School
SCSI Types & Specifications
The following table illustrates the evolution and capabilities of the various
permutations of SCSI technology, as determined by the following criteria:
For further clarification, please refer to the following definitions:
Interface: In this case, referring to a hardware interface – the physical
connection between two pieces of hardware. For example, a USB keyboard
connects peripherally to a host computer via the USB interface.
Throughput: A measurement used to identify the amount of data that can be
transferred from one device to another, in a specified amount of time,
typically measured in KB/s, MB/s etc.
Bus Width: A measurement used to determine the amount of data transmission,
of which a device is capable. For example, a device with an 8-bit bus
width can transmit 8 bits of data simultaneously, while a 32-bit device
can concurrently transmit 32 bits of data per second.
Clock Speed: The speed at which a device can execute instructions,
typically measured in MHz or GHz.
Maximum Number of Devices: The number of devices that can simultaneously
be controlled from a single (in this case SCSI) interface.
Next – Chapter 6 - Rules for connecting SCSI devices
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