What is the difference between fast ethernet and serial?

Answer 1

Ethernet has much greater transfer speeds than serial.

Answer 2

In computer networking, Fast Ethernet is a collective term for a number of Ethernet standards that carry traffic at the nominal rate of 100 Mbit/s, against the original Ethernet speed of 10 Mbit/s.

Introduced in 1995, Fast Ethernet is no longer the fastest form of Ethernet: gigabit Ethernet and the new 10 gigabit Ethernet standards are 10 and 100 times faster, respectively.

In computing, a serial port is a serial communication physical interface through which information transfers in or out one bit at a time (contrast parallel port). Throughout most of the history of personal computers, data transfer through serial ports connected the computer to devices such as terminals or modems. Mice, keyboards, and other peripheral devices also connected in this way.

While such interfaces as Ethernet, FireWire, and USB all send data as a serial stream, the term "serial port" usually identifies hardware more or less compliant to the RS-232 standard, intended to interface with a modem or with a similar communication device.

Answer 3

In computer networking, Fast Ethernet is a collective term for a number of Ethernet standards that carry traffic at the nominal rate of 100 Mbit/s, against the original Ethernet speed of 10 Mbit/s.

Introduced in 1995, Fast Ethernet is no longer the fastest form of Ethernet: gigabit Ethernet and the new 10 gigabit Ethernet standards are 10 and 100 times faster, respectively.




Ethernet uses different protocols than does serial communication, and unlike serial devices Ethernet devices are used to move data not acquire it. Thus, while you can ethernet enable your Printer (meaning you use an ethernet hub with a parallel port to which you connect the printer) you will never have and ethernet-based printer, one that plugs directly into the Ethernet port (unless the printer itself contains an Ethernet hub--and such devices are rare and expensive.) However, there are great advantages to being able to access devices that were traditionally accessible only from a single PC.

A serial device server, such as Quatech's ThinQ line, allows individual serial devices such as printers, simple terminals, medical monitoring equipment, CNC machines, etc., that were previously accessible only via a direct link to be accessible from any Internet enabled computer. According to Dataquest, a device server is a "specialized network-based hardware device designed to perform a single or specialized set of functions with client access independent of any operating system or proprietary protocol." In practical terms, this means that by using a serial device server you can connect any serial device to your network by connecting the device to a serial port on the SDS and connecting the Ethernet port on your SDS to your network. Once the connection is made, any PC or dumb terminal can transparently access the device as if it were accessing a native COM port.

a serial port is a serial communication physical interface through which information transfers in or out one bit at a time (contrast parallel port). Throughout most of the history of personal computers, data transfer through serial ports connected the computer to devices such as terminals or modems. Mice, keyboards, and other peripheral devices also connected in this way.

http://www.quatech.com/support/comm-over-ethernet.php
http://en.wikipedia.org/wiki/Fast_Ethernet
http://computer.howstuffworks.com/serial-port.htm
http://en.wikipedia.org/wiki/Serial_port

Answer 4

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A parallel bus, whether to a memory IC, SCSI, IDE or whatever uses some form of strobe or synchronising signal to indicate when the data on the bus is valid. For it to work correctly, that has to be delayed long enough to ensure data on all the bus lines has settled and they are stable for the receiving device to read. A Serial bus is self-clocking or synchronised by a phase locked loop at the receiving end. No settling delay is required as the receiving device syncs to the data being received, regardless of any delay in the connection. Running several serial channels in tandem, each self-clocking, multiplies the overall throughput without requiring any extra delays, as would be required to ensure multiple parallel channels were being read correctly.

Answer 5

It is still a serial signal, just more of them.