MGMT 1030 Lecture 11: MGMT 1030 Lecture 11 Notes
6 May 2018
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MGMT 1030 Lecture 11 Notes – Interconnect
Introduction
• Buses are also characterized by the way that they interconnect the various components
to which they are attached.
• A bus that carries signals from a single specific source to a single specific destination is
identified as a point-to-point bus.
• Point-to-point buses that connect an external device to a connector are often referred
to as cables, as in a printer cable or a network cable.
• Thus, the cable that connects the USB port in a personal computer from the computer
to a printer is an example of a point-to-point bus.
• The internal connectors into which external cables can be plugged are often called
ports.
• Typical ports on a personal computer might include parallel printer ports, network
ports, USB ports, and fire wire ports.
• Alternatively, a bus may be used to connect several points together.
• Such a bus is known as a multipoint bus, or sometimes as a multi drop bus.
• It is also referred to as a broadcast bus, because the signals produced by a source on the
us are roadast to eery other poit o the us i the sae ay as a radio statio
broadcasts to anyone who tunes in.
• The bus in a traditional Ethernet network is an example of a broadcast bus
• The signal being sent by a particular computer on the network is received by every other
computer connected to the network.
• The operation of Ethernet is discussed
• In most cases, a multipoint bus requires addressing signals on the bus to identify the
desired destination that is being addressed by the source at a particular time.
• Addressing is not required with a point-to-point bus, since the destination is already
known
• The way that they interconnect the various components to which they are attached.
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