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A USB port is a standard cable connection interface on personal computers and consumer electronics. USB ports allow stand-alone electronic devices, such as printers, USB phone chargers, mice and keyboard, to be connected via cables to a computer.

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A parallel port is a type of interface found on computers (personal and otherwise) for connecting peripherals. In computing, a parallel port is a parallel communication physical interface. It is also known as a printer port or Centronics port.

For consumers, the USB interface, and sometimes the Ethernet interface, has replaced the parallel printer port, for connections both to printers and to other devices.

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both HDMI and optical cables pass digital audio from one device to another. Both cables can be had pretty cheap. The biggest difference is that HDMI can pass higher-resolution audio, including the formats found on Blu-ray: Dolby TrueHD and DTS HD Master Audio. These formats can't get transmitted across optical. HDMI also passes video signals, whereas optical cables do not.

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Coaxial is a type of cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield. Coaxial cable is used as a transmission line for radio frequency signals. Its applications include feedlines, connecting radio transmitters and receivers with their antennas, computer network (internet) connections, digital audio, and distributing cable telivision signals.

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A serial cable is a cable used to transfer information between two devices using a serial communication protocol. The form of connectors depends on the particular serial port used. A cable wired for connecting two DTEs (Data Terminal Equipment) directly is known as a null modem cable.

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A serial port is a general-purpose interface that can be used for almost any type of device, including modems, mice, and printers. Some appliances may require a USB to Serial connection cable.

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The type of cable that consists of two independently insulated wires twisted around one another. The use of two wires twisted together helps to reduce crosstalk and electromagnetic induction. An example of this is an Ethernet cable.