A port, or interface, that can be used for serial communication, in which only 1 bit is transmitted at a time. Most serial ports on personal computers conform to the RS-232C or RS-422 standards. A serial port is a general-purpose interface that can be used for almost any type of device, including modems, mice, and printers (although most printers are connected to a parallel port).

1. Fast Ethernet Abbreviation
2. Difference Between Serial Port And Fastethernet Port

We make use of USB ports very frequently in our daily life for transferring photos from digital camera, for transferring files from smartphone to computer or vice-versa. Even, you have also heard a term ‘Serial port’. But, we don’t know exactly what USB port and Serial ports are? So, here are some information about these ports.

• In conclusion the line between Ports and Interfaces may be blurry, and in the real world the two terms may be used interchangeably but there is a difference and you need to understand the difference not only to pass an exam, but to help you properly configure network interfaces on Cisco routing and switch equipment and help you troubleshoot.
• Fast Ethernet uses Ethernet technologies like twisted pair (rj45) and fiber. Serial interfaces use time domain multiplexing (TDM) and use clock speeds to synchronize. They also must have one side set as DCE and DTE.

What is USB Port and Serial Ports in Computers?

A Serial port is an asynchronous port on the computer used to connect devices serially to the computer. It is a serial communication interface through which port is capable of transmitting one bit at a time. The serial port is found at the back of the computer and it is a part of motherboard. Serial port is used for connecting various hardwares like mouse, modem, network, printer, etc,.

Since, serial port can transmit only a bit at a time, it takes a lot of time to complete its task. So, to overcome its limitations USB is introduced which is faster and therefore serial ports are now rarely used as compared to how often they have been used in the past.

USB is an abbreviated form of Universal Serial Bus. A USB is a standard cable connection interface between personal computers and electronic devices of consumer. USB allows the USB devices to be connected to each other and transfer digital data over the cable. It can also supply electric power to the device that needs it like your mobile phone. USB is very user- friendly. There is no need to turn off the computer for installing the device. USB has the rate of data transfer 12 Mbps for disk-drives and 1.5Mbps for devices that need less bandwidth. Many computers have additional USB ports located on the front along with two standard USB ports at the back.

How USB and Serial ports are different?

USB Port:

Any computer that we buy today comes with one or more USB connectors. These USB connectors enables the connection of mice, printers, scanners, joystick and many more devices to the computer quickly and easily. The installation of device driver is also very fast and easy because the operating system supports USB. When you insert the plug of a USB device into USB port it causes the operating system to immediately search for a profile of the device in its driver. If the operating system cannot find appropriate driver then it is needed to be installed. It is installed only once, and next time the computer will able to find the driver od the device next time . Once, identification of device is done, data is transferred from the computer to device or vice-versa at maximum rate. Data can also be sent to printers via USB, and entire files can be transferred to and from hard drives and other storage devices.

Serial Port:

Serial port takes a byte of data and transmits all the 8 bits of a byte, one bit at a time. So, Serial port requires only one wire to transmit the 8 bits one by one. Before transmitting each byte of a data, serial port sends a start bit, which is 0. After each byte of a data, it sends a stop bit to indicate that that the byte is complete. Serial ports depends on special controller chip, UART (Universal Asynchronous Receiver/ Transmitter). The UART takes the output parallely of the computer’s system bus and transforms it into a form that can be transmitted through serial port. Most UART chips have a built-in buffer from 16 to 64 kilobytes, in order to function faster. When buffer is processing data going out to the serial port, it enables the chip to cache data coming in from system bus. Serial ports are also known as communication (COM) ports. They are bi-directional i.e., it allows each device to receive as well as transmit data. Serial devices have different pins to transmit and receive data. If we use same pins then it would limit the communication such that information could only travel in one direction at a time. Using different pins enables communication such that information can travel in both the direction at a time.

How USB and Serial ports are different?

The differences between USB and Serial ports are given below:

Reference Book for Port Programming

There are some good reference books for port programming given below:

• The Windows Serial Port Programming Handbook

Publisher – Auerbach publication

This book explains the principles and methods of developing serial port interfaces using multiple languages. The serial interface programming allows to develop interfaces and apply them in real-world applications.

• Serial Port Complete: Programming and circuits for RS-232 and RS-485 with disk

Publisher – Lakeview Research

This book covers everything from basic electrical and physical parameters, cables and basic architecture to programming for PCs. It contains everything about the serial ports and network project.

• Serial Port Complete: COM ports, USB Virtual COM Ports for embedded systems.

Publisher – Lakeview Research, U.S.

PC COM Ports, USB ports, ports in embedded system are all illustrated in this book. It includes some topics like- upgrading RS-232 designs to USB or wireless networks and creating serial networks of embedded systems and PCs.

Enjoy Learning …….

About Author:

This Article was originally submitted by Ms. Prachi Sinha pursuing B.Tech in Electronics & Communication.

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Port is nothing but physical ports that means the cables areconnected physically. For Instance : There are 24 ports in theswitch, which means 24 physicall cables can be connected. Interfaceis nothing but the an interface that means GUI interface. ForInstance : There is an ADSM interface in the PIX ASA box where wecan do the configuration in the GUI interface. I think it helps youto undestand very well. by, Iyyappan

What is the difference between a Link and an Interface?

The difference between a link and an interface is the protocol used.

What is the difference between usb port printer interface and parallel port Interface?

The primary difference is that a USB interface type printer requires the computer to have a USB port (as all modern computers do) whereas a parallel interface type printer requires the computer to have a parallel (LPT) port (which many modern computers do not have.) There are USB-to-parallel converters however which plug into USB and allow the use of parallel printers. Additionally, many legacy applications only have support for parallel printers, in these cases, in…

How you change the port for the Plesk Control Panel interface?

It is not recommended that one should change the port for the Plesk Control Panel Interface as it can cause disruption to integration between components.

What is the difference between serial and non-serial printers?

Serial printers are connected via the serial (COM) port of the computer. 'Non-serial' printers are connected through another interface, such as the parallel port, USB, ADB. FireWire, etc...

What is the difference between graphic user interface and character user interface?

The difference between graphic user interface and character user interface are its command. GUI does not need any type of command to interact with the computer, while CUI needs commands in order to interact with the computer.

Fast Ethernet Abbreviation

What is the difference between keyboard and the usb port?

well i don't think the question given is a correct question because like give the difference between the keyboard port and the usb port

What is the difference between chat of facebook than to chat of yahoo messenger?

In fact there is no main difference between them , just we have in interface

What is the difference between USB port and a fire wire port?

Both of them are serial interface ports, but the protocol, connectors, bit rate and just about everything else is different. It's kind of like asking what's the difference between a Chevy and a Ford pickup: they're both trucks and they work approximately the same way, but that doesn't mean you can take parts from one and install them on the other with no problems because the details are different.

What is the difference between com port and serial port?

They are the same. Different name for the same port.

List the serial and parellel port?

give the difference between serial port and parallel port

What is the difference between abstract and interface?

The difference are: An abstract class can have methods that actually have code inside them whereas an Interface cannot (An Interface can be thought of as a 100% pure abstract class) All variables in an Interface are public, static, final whereas that is not the case in Abstract classes

What is the major difference between DOS and windows OS?

Windows has a graphical interface while DOS is a command line interface.

What was the major difference between early Windows and Macintosh operating systems?

The command line interface and the graphical user interface.

What is the difference between a port and a connector?

There is no difference the are actually just synonyms.

What is the major difference between an Interface and a Class?

An interface can only have abstract methods or constants in it. A class can have both that and everything else in Java.

What is the difference between progressive and interface modes in television programming?

Interlaced, not interface. Interlaced scans every second line. Progressive does not.

What is the difference between a interface and abstract class?

Some difference between an interface and an abstract class are: a. All variables in an interface are public, static and final but that is not the case in abstract classes b. An abstract class can have both abstract and concrete methods but an interface cannot have concrete methods c. An abstract class can extend other classes and implement interfaces, while an interface can only extend other interfaces.

Difference difference between Bridge and Gateway?

Bridge is a interface between two or more separate collision domains (limits broadcast to devices connected onto that port only). While Gateway is exit or entrance point to a network and performs changes in protocols if required for e.g. DSL Broadband router connection.gateway may have protocol translators but bridge can not.

Difference between interface and abstract class on uml?

In general, the differences are that interface has (1) no fields and (2) no implementation of methods but in UML interface may have features (fields), so the difference left is that interface in UML has no implemented methods while abstract class by definition is partially implemented class.

A Explain the difference between the terms forwarding and routing?

routing refers to deciding the route of the packet from one system (a computer) to another system (a computer). It involves many intermediate routers and routing table knowledge. forwarding is a rather simple process of passing a packet from one port/interface to another port /interface. It generally involves one of the routers and routers forwarding table information That's what they called call forwarding service in telecommunication.

What is the difference between port and terminal?

Terminal provides infrastructure for the port to handle containers.

What is the difference between HMI and MMI?

HMI stands for Human Machine Interface. MMI is an older term meaning Man Machine Interface.

What is the difference between broadcast and multicast?

Unicast ---> A transmission to a single interface card. Multicast ---> A transmission to a group of interface cards on the network. Broadcast ---> A transmission to all interface cards on the network.

What is the difference between command driven and graphical user interface?

The difference between a command driven and a graphical user interface is that in command driven a user has to type commands in code to be executed in a terminal. In graphical, a user can simply navigate and operate using an interface and some sort of pointer or touch screen with no coding involved.

What is the difference between graphical user interface character user interface?

A graphical user interface allows the computer user to operate the computer with visual assistance. In a character user interface , only instructions and codes can be seen.

What it the difference between a port and a phone line?

The telephone line is the medium. The port is the connection point.

Difference Between Serial Port And Fastethernet Port

What is difference between Serial port and parallel port difference?

In serial port : The Data flows continuously and In Parallel Port : The Data is transported as a pack. Hence for large data to be printed it is always preferable to use the serial port rather than the Parallel port.

What is the difference between software and interface?

software is a collection of programs inteface is a accessing a application

What is the difference between the Linux shell and C?

C is a programming language. A shell is an interface.

What is the difference between protocol and service interface in ISO-OSI 7 layer model?

first of all your question is wrong...there is not a difference kind of thing bw protocol and interface.let me show you how.... each protocol has two interfaces 1.service interface. 2.peer to peer interface. 1.service interface is works in the layered architecture of a node. two layers of a protocol are in service interface. 2.peer interface works in the peer to peer message passing between corresponding peers of two nodes. and each peer interface is invoked…

What are the functions of a COM port?

A COM port is the serial interface on an IBM PC-compatible computer. Through this interface, communication and information transfers in or out in an efficient manner.

What is a physical port?

A physical port, as opposed to a virtual or logical port is an interface on a computer into which you can insert a connector for a device.

Difference between serial port and parallel port?

A parallel port can transfer 8 bits at a time, while a serial port can only transfer one bit at a time.

What is the difference between a single board computer and a microcontroller?

The difference between a single board computer and microcontroller is that a single board lacks a general purpose interface and the mass storage devices.

What is a parallel slave port?

it is used to interface between controller and peripheral device.. peripheral device otherwise called external device such as LED,LCD...

What is the difference between a command based interface and graphical user interface?

The biggest difference is that CLI don't use graphics.. Also in CLI you manually have to enter the command whereas in GUI you may have buttons and menu.. CLI does not supports Mouse..

Difference between class and interface in java?

Class in Java programming is composed of instantiated objects that have its own state and behavior. An interface cannot be instantiated nor created as object.

What is the difference between graphic user interface and text base interface?

cli doesnt support graphics and you have to enter the command manually like dos and earlier ver of unix..

What is the difference between socket and port?

socket is nothing but a communicational end point.while port is like an address for a computer on networks

What is difference between node and port?

Port is present in switch where as Node is a piece of equipment, such as a PC or peripheral, attached to a network.

What is difference between switch port and router?

A switch port is pretty much a Hub, and Router the same, But has security, and can be wireless

What is difference between serial interface and Ethernet interface?

The FastEthernet interface of R1 is disabled. One of the default routes is configured incorrectly. A routing protocol is not configured on both routers. The default gateway has not been configured on both routers.

Difference between usb modem and normal modem?

A USB modem plugs into your USB port. A 'normal' modem plugs into your RS232 port or your parallel port.

What is the difference between microprocessor and microcontroller?

The basic difference between the microprocessor and microcontroller is that we can interface a microcontroller directly means 'for example we can directly connect a keyboard to microcontroller to any of its ports'....where as for microprocessor we can't interface directly...we require a circuit board since it requires ram,ic's.....etc.,! beyrojac mahinay